Microstructural modification of polycarbazole-based polymeric solar cells by thermal annealing

Fu Chiao Wu, Tsai Bau Wu, Horng Long Cheng, Wei Yang Chou, Fu Ching Tang

研究成果: Conference contribution

摘要

Blended thin films were thermal-annealed at various temperatures (T A) to serve as active layers in polymeric solar cells. The films were composed of poly[N-9′-heptadecanyl-2,7-carbazole-alt-5,5-(4′, 7′-di-2-thienyl-2′,1′,3′-benzothiadiazole)] (PCDTBT) and [6,6]-phenyl-C71-butyric acid methyl ester and their microstructural features were examined through joint spectroscopy and microscopy. After they were thermal-annealed at a TA below but close to the glass transition temperature of PCDTBT, their various properties improved, including absorbance, molecular ordering, coherence length of PCDTBT, homogeneity of PCDTBT chain conformations, and two-phase pathways. Efficient charge transport and suppressed charge recombination occurred in the modified thin films, resulting in an enhancement of the power conversion efficiency of the corresponding devices.

原文English
主出版物標題Proceedings of AM-FPD 2014 - The 21st International Workshop on Active-Matrix Flatpanel Displays and Devices
主出版物子標題TFT Technologies and FPD Materials
發行者IEEE Computer Society
頁面249-252
頁數4
ISBN(列印)9784863483958
DOIs
出版狀態Published - 2014
事件21st International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials, AM-FPD 2014 - Kyoto, Japan
持續時間: 2014 七月 22014 七月 4

出版系列

名字Proceedings of AM-FPD 2014 - The 21st International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials

Other

Other21st International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials, AM-FPD 2014
國家/地區Japan
城市Kyoto
期間14-07-0214-07-04

All Science Journal Classification (ASJC) codes

  • 硬體和架構
  • 電氣與電子工程

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