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Dye sensitized Solar Cells

Dye sensitized Solar Cells Book
Author : K. Kalyanasundaram
Publisher : EPFL Press
Release : 2010-08-03
ISBN : 9781439808665
Language : En, Es, Fr & De

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Book Description :

The dye-sensitized solar cell (DSC) is a photovoltaic converter that mimics natural photosynthesis. Like green plants and algae it uses a molecular absorber, the dye, to harvest sunlight and generate electric charges. Dye-sensitized solar cells are poised to replace existing technologies in «low density» solar-energy applications, especially in contexts where mechanical robustness and light weight is required. This book offers the first comprehensive look at this promising technology and aims to provide a graduate level text that brings together the fundamentals of DSC from three perspectives (materials, performance, and mechanistic aspects), as well as to serve as an advanced monograph that summarizes the key advances and lists the technical challenges remaining to be solved.

Dye Sensitized Solar Cells

Dye Sensitized Solar Cells Book
Author : Kezia Sasitharan
Publisher : Arcler Press
Release : 2017-11
ISBN : 9781773610924
Language : En, Es, Fr & De

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Book Description :

The global energy consumption has been increasing at an alarming rate over the years. In 1998, it was 12.7TW, but in 2050, it is expected to be around 26.4 to 32.9TW and in 2100, it will increase up to 46.3 to 58.7TW. The yearly increase in global energy consumption is expected to result in the rise of demands towards natural resources such as coal, petroleum and natural gas. Since these natural resources take thousands of years to form, it is impossible to replace them in the same rate at which they are being consumed. Therefore, it is a well-known fact that with the shortage of resources there will be an unprecedented rise in the harvesting expenses. Hence, the reliability on the other sources of energy, which are renewable will rise. In the current scenario solar cells, which are also known as photovoltaic cell seem to be one of the promising options of renewable energy.The very first cohort of photovoltaic cells were constructed using crystalline silicon disks. The next batch was primarily built using semiconductors. These semiconductors were usually compounds of III-V type, like cadmium telluride and copper indium selenide/sulphide. The dye-sensitized solar cells (DSSC) which belong to the thin film group, emerged as a new class of low cost energy conversion devices with simple manufacturing procedures. Incorporation of dye molecules in some wide bandgap semiconductor electrodes was a key factor in developing photoelectrochemical solar cells with improved efficiency.In this book, we begin with a detailed explanation about the basics of solar cell technology and move on to overview some aspects of the historical background, present-scenario, currently popular applications and future prospects of dye sensitized solar cells. The structural aspects and working principle of this promising class of solar cells has been dealt in detail for providing a good understanding of the basics. Some novel schemes in preparation and assembly of dye sensitized solar cell have been presented from recent literature reports. The performance of nanocrystalline solar cell samples can be appreciably improved by optimizing the preparation technique, the class of the nanostructured materials, types of electrolyte, and high transparent conductive electrodes. Challenges associated with materials choice, nanostructured electrodes and device layers structure design are detailed. Recent trends in the development of nano-crystalline materials for DSSCs technology are introduced. Manufacturability and different approaches suggested for commercialization of DSSC for various applications are outlined and discussed in detail.

Fabrication of dye sensitized solar cells using natural dyes extracted from Brazilian plants

Fabrication of dye sensitized solar cells using natural dyes extracted from Brazilian plants Book
Author : Marcelo Alatzatianou Rodrigues
Publisher : Marcelo Alatzatianou Rodrigues
Release : 2020-05-01
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Dye-sensitized solar cell (DSSC) is one of the emerging thin-film photovoltaic technologies. Advantages come from the low cost and easier fabrication process. The realistic overall conversion efficiency already made the commercial availability a reality. It is possible the use of natural dyes extracted from plants in DSSC fabrication to substitute synthetic dyes, which requires complex fabrication processes and the use of toxic and scarce materials, like ruthenium. Natural dye-sensitized solar cells (NDSSC) are still in an early stage, with many research groups working hard to overcome efficiency and stability issues. Natural dyes are cheap, highly available, environmentally safe and easy to extract. Nature has so much to offer to humankind, each plant is unique, with characteristics developed during million of years of evolution. Each biome has an enormous number of species readily available for study. Among them, Brazilian forests are in an outstanding position, with a gigantic quantity of species with hidden opportunities. This work aims to inspire other researchers to explore this field and find in nature new answers for a clean energy demanding world. It is shown the basic aspects of NDSSC study and practical research, from laboratory construction to cells fabrication. After a brief introduction about PV technologies, DSSC is deeper discussed based on a literature review. Physical and electrochemical aspects are presented in details. Natural dyes specificities and application in DSSC are then discussed also based on other researchers findings. With a well-established theoretical basis, this work focus then on the development of a NDSSC fabrication protocol, presenting the most important tests and results achieved. A special highlight is given to the design and fabrication of a solar simulator from scratch. Having the infrastructure, equipments and protocol defined, the fabrication of NDSSC based on Brazilian plants was possible, including plants naturally originated in the country: blackberry, quaresmeira and embaúba-vermelha, and two other non-native species due to their economically important role, of which Brazil is currently the world leader producer, they are: arabica coffee and sugarcane. The found cells efficiencies for all studied plants dyes are in the range of other important research publications, even for the simplified and low cost proposed protocol, which validates the solutions and techniques used. Coffea arabica (arabica coffee) provided the best performance, reaching 0.44% overall conversion efficiency, with no special commonly used chemical treatment, co-adsorbent or purification, such as: TiCl4, organic acids, chromatography and lyophilization. It is hoped this work contribute for the development of an even greener energy generation from sunlight.

Dye Sensitized Solar Cells

Dye Sensitized Solar Cells Book
Author : Masoud Soroush,Kenneth K.S. Lau
Publisher : Academic Press
Release : 2019-02-23
ISBN : 0128145420
Language : En, Es, Fr & De

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Book Description :

Dye-Sensitized Solar Cells: Mathematical Modelling and Materials Design and Optimization presents the latest information as edited from leaders in the field. It covers advances in DSSC design, fabrication and mathematical modelling and optimization, providing a comprehensive coverage of various DSSC advances that includes different system scales, from electronic to macroscopic level, and a consolidation of the results with fundamentals. The book is extremely useful as a monograph for graduate students and researchers, but is also a comprehensive, general reference on state-of-the-art techniques in modelling, optimization and design of DSSCs. Includes chapter contributions from worldwide leaders in the field Offers first-principles of modelling solar cells with different system scales, from the electronic to macroscopic level References, in a single resource, state-of-the-art techniques in modelling, optimization and design of DSSC

Dye Sensitized Solar Cell

Dye Sensitized Solar Cell Book
Author : Frederic P. Miller,Agnes F. Vandome,John McBrewster
Publisher : Alphascript Publishing
Release : 2009-11
ISBN : 9786130221157
Language : En, Es, Fr & De

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Book Description :

A dye-sensitized solar cell (DSSC, DSC or DYSe is a relatively new class of low-cost solar cell, that belong to the group of Thin film solar cells. It is based on a semiconductor formed between a photo-sensitized anode and an electrolyte, a photoelectrochemical system. This cell was invented by Michael Grtzel and Brian O'Regan at the cole Polytechnique Fdrale de Lausanne in 1991 and are also known as Grtzel cells. This cell is extremely promising because it is made of low-cost materials and does not need elaborate apparatus to manufacture. In bulk it should be significantly less expensive than older solid- state cell designs.

Interfacial Engineering in Functional Materials for Dye Sensitized Solar Cells

Interfacial Engineering in Functional Materials for Dye Sensitized Solar Cells Book
Author : Alagarsamy Pandikumar,Kandasamy Jothivenkatachalam,Karuppanapillai B. Bhojanaa
Publisher : John Wiley & Sons
Release : 2019-10-30
ISBN : 1119557399
Language : En, Es, Fr & De

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Book Description :

Offers an Interdisciplinary approach to the engineering of functional materials for efficient solar cell technology Written by a collection of experts in the field of solar cell technology, this book focuses on the engineering of a variety of functional materials for improving photoanode efficiency of dye-sensitized solar cells (DSSC). The first two chapters describe operation principles of DSSC, charge transfer dynamics, as well as challenges and solutions for improving DSSCs. The remaining chapters focus on interfacial engineering of functional materials at the photoanode surface to create greater output efficiency. Interfacial Engineering in Functional Materials for Dye-Sensitized Solar Cells begins by introducing readers to the history, configuration, components, and working principles of DSSC It then goes on to cover both nanoarchitectures and light scattering materials as photoanode. Function of compact (blocking) layer in the photoanode and of TiCl4 post-treatment in the photoanode are examined at next. Next two chapters look at photoanode function of doped semiconductors and binary semiconductor metal oxides. Other chapters consider nanocomposites, namely, plasmonic nanocomposites, carbon nanotube based nanocomposites, graphene based nanocomposites, and graphite carbon nitride based nanocompositesas photoanodes. The book: Provides comprehensive coverage of the fundamentals through the applications of DSSC Encompasses topics on various functional materials for DSSC technology Focuses on the novel design and application of materials in DSSC, to develop more efficient renewable energy sources Is useful for material scientists, engineers, physicists, and chemists interested in functional materials for the design of efficient solar cells Interfacial Engineering in Functional Materials for Dye-Sensitized Solar Cells will be of great benefit to graduate students, researchers and engineers, who work in the multi-disciplinary areas of material science, engineering, physics, and chemistry.

Dye Sensitized Solar Cells

Dye Sensitized Solar Cells Book
Author : Ahmad Irfan,Abdullah G. Al-Sehemi,Naz Hina
Publisher : LAP Lambert Academic Publishing
Release : 2013-01
ISBN : 9783659324000
Language : En, Es, Fr & De

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Book Description :

The dye-sensitized solar cells (DSSCs) are still in the early stages. This book would be helpful to educate the people towards alternative energy sources. Additionally, these energy sources would be pollution free as compared to coal which is a source of electricity. Until now, it's a severe challenge for both experiment and theory to make clear the fundamental properties of the ultrafast electron injection and come up to the satisfied efficiency of DSSC. Further developments in dye design will play a vital part in the continuing optimization of DSSC and it depends on the quantitative knowledge of dye sensitizer. So the theoretical investigations of the physical properties of dye sensitizers are very important in order to disclose the relationship among the performance, structures and the properties, it is also supportive to design and production of novel dye sensitizers with higher performance. Porpyrins are the stable organic chromophores which absorb visible light well and, luminesce with very high efficiency. The present book deals with the Structural, electronic and photophysical properties as well as structure-property relationship.

Dye Sensitized Solar Cells

Dye Sensitized Solar Cells Book
Author : Jeremy Essner
Publisher : Unknown
Release : 2011
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

With the worldly consumption of energy continually increasing and the main source of this energy, fossil fuels, slowly being depleted, the need for alternate sources of energy is becoming more and more pertinent. One promising approach for an alternate method of producing energy is using solar cells to convert sunlight into electrical energy through photovoltaic processes. Currently, the most widely commercialized solar cell is based on a single p-n junction with silicon. Silicon solar cells are able to obtain high efficiencies but the downfall is, in order to achieve this performance, expensive fabrication techniques and high purity materials must be employed. An encouraging cheaper alternative to silicon solar cells is the dye-sensitized solar cell (DSSC) which is based on a wide band gap semiconductor sensitized with a visible light absorbing species. While DSSCs are less expensive, their efficiencies are still quite low compared to silicon. In this thesis, Grätzel cells (DSSCs based on TiO2 NPs) were fabricated and optimized to establish a reliable standard for further improvement. Optimized single layer GSCs and double layer GSCs showing efficiencies>4% and efficiencies of ~6%, respectively, were obtained. Recently, the incorporation of metallic nanoparticles into silicon solar cells has shown improved efficiency and lowered material cost. By utilizing their plasmonic properties, incident light can be scattered, concentrated, or trapped thereby increasing the effective path length of the cell and allowing the physical thickness of the cell to be reduced. This concept can also be applied to DSSCs, which are cheaper and easier to fabricate than Si based solar cells but are limited by lower efficiency. By incorporating 20 nm diameter Au nanoparticles (Au NPs) into DSSCs at the FTO/TiO2 interface as sub wavelength antennae, average photocurrent enhancements of 14% (maximum up to ~32%) and average efficiency enhancements of 13% (maximum up to ~23%) were achieved with well dispersed, low surface coverages of nanoparticles. However the Au nanoparticle solar cell (AuNPSC) performance is very sensitive to the surface coverage, the extent of nanoparticle aggregation, and the electrolyte employed, all of which can lead to detrimental effects (decreased performances) on the devices.

Theoretical Study of Dye Sensitized Solar Cell Dssc

Theoretical Study of Dye Sensitized Solar Cell  Dssc  Book
Author : Sin-Lai Emily Li,李倩麗
Publisher : Open Dissertation Press
Release : 2017-01-27
ISBN : 9781374682955
Language : En, Es, Fr & De

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Book Description :

This dissertation, "Theoretical Study of Dye-sensitized Solar Cell (DSSC)" by Sin-lai, Emily, Li, 李倩麗, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. DOI: 10.5353/th_b4189719 Subjects: Dye-sensitized solar cells

Dye sensitized Solar Cells Dsscs

Dye sensitized Solar Cells Dsscs Book
Author : Gerard Blokdyk
Publisher : Createspace Independent Publishing Platform
Release : 2017-10-12
ISBN : 9781978206465
Language : En, Es, Fr & De

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Book Description :

This exclusive Dye-Sensitized Solar Cells DSSCs self-assessment will make you the trusted Dye-Sensitized Solar Cells DSSCs domain veteran by revealing just what you need to know to be fluent and ready for any Dye-Sensitized Solar Cells DSSCs challenge. How do I reduce the effort in the Dye-Sensitized Solar Cells DSSCs work to be done to get problems solved? How can I ensure that plans of action include every Dye-Sensitized Solar Cells DSSCs task and that every Dye-Sensitized Solar Cells DSSCs outcome is in place? How will I save time investigating strategic and tactical options and ensuring Dye-Sensitized Solar Cells DSSCs opportunity costs are low? How can I deliver tailored Dye-Sensitized Solar Cells DSSCs advise instantly with structured going-forward plans? There's no better guide through these mind-expanding questions than acclaimed best-selling author Gerard Blokdyk. Blokdyk ensures all Dye-Sensitized Solar Cells DSSCs essentials are covered, from every angle: the Dye-Sensitized Solar Cells DSSCs self-assessment shows succinctly and clearly that what needs to be clarified to organize the business/project activities and processes so that Dye-Sensitized Solar Cells DSSCs outcomes are achieved. Contains extensive criteria grounded in past and current successful projects and activities by experienced Dye-Sensitized Solar Cells DSSCs practitioners. Their mastery, combined with the uncommon elegance of the self-assessment, provides its superior value to you in knowing how to ensure the outcome of any efforts in Dye-Sensitized Solar Cells DSSCs are maximized with professional results. Your purchase includes access to the $249 value Dye-Sensitized Solar Cells DSSCs self-assessment dashboard download which gives you your dynamically prioritized projects-ready tool and shows your organization exactly what to do next. Your exclusive instant access details can be found in your book.

Counter Electrodes for Dye Sensitized and Perovskite Solar Cells 2 Vols

Counter Electrodes for Dye Sensitized and Perovskite Solar Cells  2 Vols   Book
Author : Sining Yun,Anders Hagfeldt
Publisher : John Wiley & Sons
Release : 2019-01-04
ISBN : 3527413677
Language : En, Es, Fr & De

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Book Description :

A guide to one of the most important aspects for affordable and highly efficient dye-sensitized solar cells Dye-sensitized solar cells have the potential to be one of the most promising photovoltaic technologies for production of renewable and clean energy. Counter Electrodes for Dye-Sensitized and Perovskite Solar Cells offers an introduction to the various types of counter electrode catalysts for dye-sensitized solar cells and perovskite solar cells, including metal and metal compounds, carbon materials, polymers, and composites. With contributions from an international panel of experts, the book contains a discussion of the design and synthesis of the catalysts, characterization and stability of the devices, as well as calculations on properties. The contributors cover a wide range of topics including information on: carbon nanotubes electrocatalysts for I-mediated dye-sensitized solar cells; Pt-loaded composite electrocatalysts for I-mediated dye-sensitized solar cells; metal contact electrodes for perovskite solar cells; and much more. The book also includes insight into the future developments in the field. This important resource Covers the various types of counter electrode catalysts and presents design strategies, synthesis methods, theoretical calculation and stability evaluation Includes information on low-cost counter electrode catalysts and commercial applications of dye-sensitized sensitized solar cells Disscuses how electrode catalysts can be applied in a range of fields, such as solar cells, fuel cells, hydrogen production, and photocatalysis Offers contributions from leading experts in the field including Anders Hagfeldt, one of the world's leading researchers in this field Written for materials scientists, solid state chemists, electrochemists, catalytic chemists, solid state physicists, and chemical industry professionals, Counter Electrodes for Dye-Sensitized and Perovskite Solar Cells is a comprehensive and authoritative guide to dye-sensitized solar cells.

Pore Filling and Light Trapping in Solid state Dye sensitized Solar Cells

Pore Filling and Light Trapping in Solid state Dye sensitized Solar Cells Book
Author : Anonim
Publisher : Stanford University
Release : 2011
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Dye-sensitized solar cells (DSCs) are among the promising photovoltaic technologies that could potentially replace the expensive silicon. Liquid electrolyte-based DSCs have the highest efficiency but they suffer from potential stability and encapsulation problems when manufactured at high volumes. Research groups are actively pursuing solid state dye-sensitized solar cells (ss-DSCs), which uses a solid-state hole-transport material to replace the liquid electrolyte. SS-DSCs can potentially achieve higher power conversion efficiencies than the liquid-electrolyte because the open-circuit voltage can be adjusted by the choice of different hole-transport materials. However, current ss-DSCs are limited by both pore filling and electron-hole recombination such that the optimal thickness is around 2 microns, far thinner than the thickness needed to achieve good optical absorption. This thesis presents results that address two challenges facing the field of ss-DSC research - what is limiting the thickness of the device, and what can we do to boost light absorption and power conversion efficiency? In the first part, we describe how pore filling of hole-transport materials inside mesoporous TiO2 films is a limiting factor to the device thickness. This is accomplished by three closely-related pore filling projects: (a) quantifying the pore filling of hole-transport materials inside mesoporous TiO2 films; (b) experimenting with new methods to improve pore filling fraction; and (c) investigating the effect of pore filling on photovoltaic performances of ss-DSCs and the underlying photophysical mechanisms. This brings new physical understanding of the importance of pore filling and how pore filling a effects the photovoltaic performances. In the second part, we describe a new device architecture to increase the absorption through the use of plasmonic back reectors, which consist of two-dimensional (2D) array of silver nanodomes. They are incorporated into the ss-DSCs by nanoimprint lithography, and they enhance absorption through excitation of plasmonic modes and increased light scattering.

Dye Sensitized Solar Cells with Carbon Black as Counter Electrodes

Dye Sensitized Solar Cells with Carbon Black as Counter Electrodes Book
Author : Anonim
Publisher : Unknown
Release : 2016
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Abstract: In this experiment, we use carbon black as counter electrodes to replace the conventional platinum electrodes in dye sensitized solar cell (DSSC). The electrical properties and device efficiency with carbon black counter electrodes with various concentrations, and under the annealing temperature from 100 to 500 °C are discussed. After the proper annealing process, the conductivity and redoxing ability of the carbon black is improved, resulted in the enhancement of the electrical characteristics, especially fill factor, of the device. The highest device efficiency was 7.28% with the J SC of 14.70 mA/cm 2, V OC of 0.75 V, and fill factor of 0.67 under 1-sun AM 1.5G solar illumination.

Effective Methods for the High Efficiency Dye Sensitized Solar Cells Based on the Metal Substrates

Effective Methods for the High Efficiency Dye Sensitized Solar Cells Based on the Metal Substrates Book
Author : Ho-Gyeong Yun,Byeong-Soo Bae,Man Gu Kang,Yongseok Jun
Publisher : Unknown
Release : 2011
ISBN : 9789533077352
Language : En, Es, Fr & De

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Book Description :

Download Effective Methods for the High Efficiency Dye Sensitized Solar Cells Based on the Metal Substrates book written by Ho-Gyeong Yun,Byeong-Soo Bae,Man Gu Kang,Yongseok Jun, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Improved Performance of Dye sensitized Solar Cells Based on Solution Treated PEDOT as Efficient Counter Electrode

Improved Performance of Dye sensitized Solar Cells Based on Solution Treated PEDOT as Efficient Counter Electrode Book
Author : Anonim
Publisher : Unknown
Release : 2017
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

ABSTRACT: The dye-sensitized solar cell (DSSC) is a promising alternative to the Si solar cell because of its low-cost and easy fabrication. The conductive polymer counter electrode, PEDOT has attracted much attention on DSSCs. To enhance efficiency, the electrochemical deposition of PEDOT onto FTO glass was carried out in 4 solution deposition ratios 4:6, 6:4, 8:2 and 9:1 of distilled water and acetonitrile. The best efficiency of the resulting DSSCs with 9:1/ PEDOT as compared to the reference cell. The excellent photoelectric properties, and low cost allow the PEDOT electrode to be a credible alternative electrode for use in DSSCs.

Dye Sensitized Solar Cells

Dye Sensitized Solar Cells Book
Author : Adarsh Kumar Pandey,Syed Shahabuddin,Muhammad Shakeel Ahmad
Publisher : Academic Press
Release : 2021-02-15
ISBN : 9780128182062
Language : En, Es, Fr & De

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Book Description :

Dye-Sensitized Solar Cells: Emerging Trends and Advanced Applications is highly focused on addressing all aspects of dye sensitized solar cell technology. In this book, the authors present systematic analysis and working principles and detailed studies of individual components, manufacturing methods, software assisted design surrounding the technology market, commercialization potential, and performance evaluations and detailed fabrication methods and parameters. As there is no specific book which could encircle all the aspects of dye sensitized solar cells from its very basic working principles to advanced approached to improve it efficiency, this book fills that gap. Providing a comprehensive study on dye sensitized solar cells, this reference covers basic working principles to advanced approaches in improving efficiency as well as thermodynamic and kinetic studies. It will be ideal for advanced stage researchers and engineers looking to get a grip on DSSC technology. Provides a compilation of all important principles and advanced research in the field of dye sensitized solar cells Specifies constituents of each DSSC, from basic to advanced level Details advances in fabrication and software assisted design of DSSC

Fundamentals of Dye Sensitized Solar Cells

Fundamentals of Dye Sensitized Solar Cells Book
Author : Sugathan Vipinraj,John Elsa,Kumaraswamy Sudhakar
Publisher : LAP Lambert Academic Publishing
Release : 2015-11-02
ISBN : 9783659794421
Language : En, Es, Fr & De

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Book Description :

During my research work, I came across this interesting segment of Third Generation Solar Cells, i.e. Dye Sensitized Solar Cells (DSSC). I realized the importance of putting together the fundamentals of the DSSC, for convenience of the researchers who choose to contribute to this section. This book is a result of a sincere and selfless effort from me and my co-authors. We have tried our best to bring forth all the basic information and scope of the DSSC. This book would prove to be of great use to researchers, especially the beginners in the field of DSSC.

Dye sensitized Solar Cells Based on Axially Ligated Phosphorus phthalocyanine Dyes

Dye sensitized Solar Cells Based on Axially Ligated Phosphorus phthalocyanine Dyes Book
Author : Anonim
Publisher : Unknown
Release : 2015
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Abstract: Dye-sensitized solar cells with axially anchored phosphorous-phthalocyanine dyes were fabricated for the first time. Although the phosphorus-phthalocyanine dyes do not have a conventional anchoring group (–COOH), these dyes could be absorbed on a TiO2 semiconductor surface. After the optimization of energy levels, a 24% incident photon-to-current efficiency (IPCE) was observed at 710 nm with an IPCE curve edge of 800 nm. The efficiency was 2.67%, which was higher than those of previously reported dye-sensitized solar cells with axially anchored phthalocyanine dyes (less than 1%).

Synthesis of Azo Dyes for Use in Dye sensitized Solar Cells

Synthesis of Azo Dyes for Use in Dye sensitized Solar Cells Book
Author : Marsha Grimminger
Publisher : Unknown
Release : 2017
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

With the increase in fossil fuel costs and the limitability of readily available reserves, the need for research in renewable energy sources is crucial. Organic solar cells can be a convenient and low-cost approach to harvesting solar energy using readily available and often recyclable materials. Traditional silicon solar cells have shown high reliability, but installation costs are prohibitive. Dye sensitized solar cells (DSSCs) are a promising alternative at a fraction of the cost. DSSCs use dyes with high quantum efficiency adsorbed on a titanium dioxide film to absorb light and transfer electrons. The dye is regenerated by a counter electrode and electrolyte, improving device stability. Our group has been exploring inexpensive, soluble, light stable azo dyes used in the textile industry for light absorption. Our goal is to generate solution processable DSSCs which can be spray painted directly on a roof or large area surface. By making device fabrication inexpensive, we decrease the need for high power conversion efficiency (PCE). Traditional silicon cells have a PCE around 13% which has been matched by DSSCs with carefully designed dyes. The synthesis, electronics, and solar cell device characteristics of several azo dyes will be presented.