Effect of ZnO Nanoparticle Properties on Dye-Sensitized Solar Cell Performance
详细信息 查看全文
- 作者：Ka Kan Wong ; Annie Ng ; Xin Yi Chen ; Yip Hang Ng ; Yu Hang Leung ; Kam Hong Ho ; Aleksandra B. Djuri拧i膰 ; Alan Man Ching Ng ; Wai Kin Chan ; Lihong Yu ; David Lee Phillips
- 刊名：ACS Applied Materials & Interfaces
- 出版年：2012
- 出版时间：March 28, 2012
- 年：2012
- 卷：4
- 期：3
- 页码：1254-1261
- 全文大小：518K
- 年卷期：v.4,no.3(March 28, 2012)
- ISSN：1944-8252
文摘
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.