Effect of ZnO Nanoparticle Properties on Dye-Sensitized Solar Cell Performance

We have investigated the effect of ZnO nanoparticle properties on the dye-sensitized solar cell performance. Nanoparticles with different sizes and optical properties were considered. We found that there is a complex relationship between native defects, dye adsorption, charge transport and solar cel...

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Bibliographic Details
Published in:	ACS applied materials & interfaces Vol. 4; no. 3; pp. 1254 - 1261
Main Authors:	Wong, Ka Kan, Ng, Annie, Chen, Xin Yi, Ng, Yip Hang, Leung, Yu Hang, Ho, Kam Hong, Djurišić, Aleksandra B, Ng, Alan Man Ching, Chan, Wai Kin, Yu, Lihong, Phillips, David Lee
Format:	Journal Article
Language:	English
Published:	United States American Chemical Society 28-03-2012
Subjects:	ZnO nanoparticles photoluminescence photovoltaics defects DSSC
Online Access:	Get full text
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Summary:	We have investigated the effect of ZnO nanoparticle properties on the dye-sensitized solar cell performance. Nanoparticles with different sizes and optical properties were considered. We found that there is a complex relationship between native defects, dye adsorption, charge transport and solar cell performance. The presence of a high concentration of nonradiative defects was found to be detrimental to photovoltaic performance, whereas for radiative defects, samples displaying orange-red defect emission exhibited better performance compared to samples with green defect emission (when the samples had similar emission intensities). Detailed discussion of the nanoparticle properties and their relationship with dye adsorption, electron injection, electron lifetime, electron transport time, and solar cell performance is given.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1944-8244 1944-8252
DOI:	10.1021/am201424d