Growth of single-crystalline rutile TiO2 nanorods on fluorine-doped tin oxide glass for organic–inorganic hybrid solar cells

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• 作者：Junting Xi (12)
  Orawan Wiranwetchayan (2)
  Qifeng Zhang (2)
  Zhiqiang Liang (2)
  Yueming Sun (1) sun@seu.edu.cn
  Guozhong Cao (2) gzcao@u.washington.edu
• 刊名：Journal of Materials Science: Materials in Electronics
• 出版年：2012
• 出版时间：September 2012
• 年：2012
• 卷：23
• 期：9
• 页码：1657-1663
• 全文大小：549.9 KB
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• 作者单位：1. School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189 Jiangsu, China2. Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195, USA
• ISSN：1573-482X

文摘

Single-crystalline TiO₂ nanorods (TiO₂ NRs) are grown directly on FTO substrates by hydrothermal methods. The diameters and lengths of TiO₂ NRs are easily controlled by growth conditions. When used in hybrid solar cells, TiO₂ NRs function as the continuous pathway for fast electron transport to charge collecting electrode, demonstrating a high power conversion efficiency (PCE) of 3.21% with 140 nm long TiO₂ NRs. The bilayer polymer coating are introduced into 500 nm long TiO₂ NRs to reduce the surface roughness, resulting in the improved contact between the polymer blend and silver electrode and an enhanced PCE from 2.70 to 3.07%.