The influence of light intensity, active area and excitation wavelength on the temporal response of a dye sensitized solar cell

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Title: The influence of light intensity, active area and excitation wavelength on the temporal response of a dye sensitized solar cell
Authors: O'Reilly, Thomas
Andrei, Codrin
O'Reilly, Jennifer
Zerulla, Dominic
Permanent link: http://hdl.handle.net/10197/2829
Date: 2-Aug-2009
Abstract: The temporal response of a biomimetic dye-sensitized solar cell (DSSC) is critically linked to the intensity of the incident light. When a DSSC is partially illuminated and the incoming light is of low intensity, the response time of the cell is prolonged dramatically. In this report, the major components of the DSSC are investigated to find the source and to provide a model of the driving mechanisms behind this delay. For low light level conditions,only deep traps states of the TiO2 layer participate in electron transport resulting in a slow temporal response. Increasing the illumination level thus increases the conductivity of the TiO2 electrode by filling these trap states and increases the response time. This study shows a strong correlation between the light intensity, active area and excitation wavelength on the temporal response time of a DSSC.
Funding Details: Science Foundation Ireland
Type of material: Conference Publication
Publisher: Society of Photo-Optical Instrumentation Engineers
Copyright (published version): Copyright 2009 Society of Photo-Optical Instrumentation Engineers.
Keywords: Solar Cell;DSSC;Biomimetic;Temporal response;Spectral response
Subject LCSH: Dye-sensitized solar cells
Biomimetic materials
Spectral sensitivity
DOI: 10.1117/12.829394
Language: en
Status of Item: Peer reviewed
Is part of: Tsai, B. K. (ed.). SPIE Proceedings Optical Modeling and Measurements for Solar Energy Systems III : volume 7410
Conference Details: Poster presentation at SPIE Optics + Photonics: Solar Energy and Technology, San Diego, California, USA, 2nd – 6th August 2009
Appears in Collections:Solar Energy Conversion (SEC) Cluster Research Collection
Physics Research Collection

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