Nano-scale mechanical properties of polymer/fullerene bulk hetero-junction films and their influence on photovoltaic cells

Hung Chang Li, K. Koteswara Rao, Jun Yuan Jeng, Yu Jer Hsiao, Tzung Fang Guo, Yean Ren Jeng, Ten Chin Wen

研究成果: Article同行評審

15 引文 斯高帕斯(Scopus)

摘要

Mechanical properties of poly(3-hexylthiophene) (P3HT)/[6,6]-phenyl-C61- butyric acid methyl ester (PCBM) blend films, prepared under different processing conditions, were evaluated by nanoindentation. Photovoltaic devices fabricated using above active layers presented the highest power conversion efficiencies for blend films having lowest Young's modulus (20.73 GPa) and hardness (649 MPa), as measured by a nanoidentator under optimized conditions of blend proportion (1:1), film drying rate (slow) and annealing temperature and time (110 °C and 10 min). It implies that the degree of nano-scale phase separation for the P3HT:PCBM blend is strongly correlated with the mechanical properties in the nanodimension. The nanoindentation is a method to estimate nano-scale mechanical properties of blend films and the performance of photovoltaic cells.

原文English
頁(從 - 到)2976-2980
頁數5
期刊Solar Energy Materials and Solar Cells
95
發行號11
DOIs
出版狀態Published - 2011 十一月

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 可再生能源、永續發展與環境
  • 表面、塗料和薄膜

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