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-May-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
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