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| 題名: | Anthracene based organic dipolar compounds for sensitized solar cells |
| 作者: | Lin, Yan-Zuo
Huang, Chiung Hui
Chang, Yuan Jay
Yeh, Chia-Wei
Chin, Tsung-Mei
Chi, Kai-Ming
Chou, Po-Ting
Watanabe, Motonori
Chow, Tahsin J. |
| 貢獻者: | 化學系 |
| 關鍵詞: | Dye-sensitized solar cells
Triarylene linked bridge
Anthracene based
Intramolecular charge transfer |
| 日期: | 2014-01-14 |
| 上傳時間: | 2015-01-27 14:32:01 (UTC+8) |
| 摘要: | Organic dyes that consist of an anthracene moiety between a triphenylamine donor group and a cyanoacrylic acid acceptor group displayed remarkable solar-to-energy conversion efficiency in dyesensitized solar cells. The planar geometry of anthracene and its bulky substituents helped the dyes to form a high quality monolayer on the surface of TiO2. A typical device made with the dye AN-Bu displayed a maximal photon-to-current conversion efficiency (IPCE) 65% in the region of 350-510 nm, a short-circuit photocurrent density (J(sc)) 12.78 mA cm(-2), an open-circuit photovoltage (V-oc) 0.73 V, and a fill factor (FF) 0.67, corresponding to an overall conversion efficiency 6.23%. In an experiment of using deoxycholic acid (DCA) as a co-absorbent, the values of Vo, stayed in a similar range, yet the values offs were reduced in ca. 11% due to a decrease of loading amounts. This result indicated that the quality of the dye films cannot be further improved by the adding of DCA. The photophysical properties were analyzed with the aid of a time-dependent density functional theory (TDDFT) model with the B3LYP functional. (C) 2013 Elsevier Ltd. All rights reserved. |
| 關聯: | TETRAHEDRON 卷: 70 期: 2 頁碼: 262-269 |
| 顯示於類別: | [化學系所] 期刊論文
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