標題: | Hybrid Titania Photoanodes with a Nanostructured Multi-Layer Configuration for Highly Efficient Dye-Sensitized Solar Cells |
作者: | Wu, Hui-Ping Lan, Chi-Ming Hu, Jyun-Yu Huang, Wei-Kai Shiu, Jia-Wei Lan, Zih-Jian Tsai, Cheng-Ming Su, Chun-Hsien Diau, Eric Wei-Guang 應用化學系 應用化學系分子科學碩博班 Department of Applied Chemistry Institute of Molecular science |
公開日期: | 2-五月-2013 |
摘要: | To construct a hybrid titania photoanode containing nanoparticles and nanorods of varied size in a multilayer (ML) configuration for dye-sensitized solar cells, the essence of our ML design is a bilayer system with additional layers of nanorods of well-controlled size inserted between the transparent and the scattering layers to enhance the light harvesting capability for photosensitizers with small absorptivity, such as Z907. We measured charge-extraction and intensity-modulated photoelectric spectra to show the advantages of one-dimensional nanorods with an improved electron-transport property and an upward shift of the potential band edge; a favorable ML configuration was constructed to have a cascade potential feature for feasible electron transport from long nanorods, to normal nanorods, to small nanoparticles. On the basis of the ML system reported herein, we demonstrate how the performance of a Z907 device is improved to attain eta similar to 10%, which is a milestone for its future commercialization. |
URI: | http://dx.doi.org/10.1021/jz400620q http://hdl.handle.net/11536/21886 |
ISSN: | 1948-7185 |
DOI: | 10.1021/jz400620q |
期刊: | JOURNAL OF PHYSICAL CHEMISTRY LETTERS |
Volume: | 4 |
Issue: | 9 |
起始頁: | 1570 |
結束頁: | 1577 |
顯示於類別: | 期刊論文 |