Controllable synthesis of flake-like Al-doped ZnO nanostructures and its application in inverted organic solar cells

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• 作者：Xi Fan (1)
  Guojia Fang (1)
  Shishang Guo (1)
  Nishuang Liu (1)
  Huimin Gao (1)
  Pingli Qin (1)
  Songzhan Li (1)
  Hao Long (1)
  Qiao Zheng (1)
  Xingzhong Zhao (1)
  
• 关键词：Al ; doped ZnO ; inverted organic solar cell ; electrical conductivity ; morphology
• 刊名：Nanoscale Research Letters
• 出版年：2011
• 出版时间：December 2011
• 年：2011
• 卷：6
• 期：1
• 全文大小：533KB
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• 作者单位：Xi Fan (1)
  Guojia Fang (1)
  Shishang Guo (1)
  Nishuang Liu (1)
  Huimin Gao (1)
  Pingli Qin (1)
  Songzhan Li (1)
  Hao Long (1)
  Qiao Zheng (1)
  Xingzhong Zhao (1)
  
  1. Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, Department of Electronic Science and Technology, School of Physics and Technology, Wuhan University, Wuhan, 430072, People’s Republic of China
  
• ISSN：1556-276X

文摘

Flake-like Al-doped ZnO (AZO) nanostructures including dense AZO nanorods were obtained via a low-temperature (100°C) hydrothermal process. By doping and varying Al concentrations, the electrical conductivity (σ) and morphology of the AZO nanostructures can be readily controlled. The effect of σ and morphology of the AZO nanostructures on the performance of the inverted organic solar cells (IOSCs) was studied. It presents that the optimized power conversion efficiency of the AZO-based IOSCs is improved by approximately 58.7% compared with that of un-doped ZnO-based IOSCs. This is attributed to that the flake-like AZO nanostructures of high σ and tunable morphology not only provide a high-conduction pathway to facilitate electron transport but also lead to a large interfacial area for exciton dissociation and charge collection by electrodes.