Horizontally oriented molecular thin films for application in organic solar cells

Toshinori Matsushima, Hitoshi Matsuo, Tetsuo Yamamoto, Akichika Nakao, Hideyuki Murata

研究成果: ジャーナルへの寄稿学術誌査読

12 被引用数 (Scopus)

抄録

The authors investigate the influence of molecular orientation of p-type molecules of alpha-sexithiophene (α-6T) and n-type molecules of 3,4,9,10-perylene tetracarboxylic bisbenzimidazole (PTCBI) on organic solar cell (OSC) performance. Deposition of α-6T and subsequently PTCBI on an α-6T buffer surface rubbed with a nylon cloth allows their horizontal orientations to be formed in separate layers. Power conversion efficiency and operation stability of a rubbed OSC are markedly improved when compared with an unrubbed OSC. The improved OSC performance is confirmed to be due to increases in light absorption, exciton diffusion length, energy difference between the p-type and n-type layers, and carrier collection by electrodes, which are caused by the rubbing-induced double horizontal orientations.

本文言語英語
ページ(範囲)81-91
ページ数11
ジャーナルSolar Energy Materials and Solar Cells
123
DOI
出版ステータス出版済み - 4月 2014
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 再生可能エネルギー、持続可能性、環境
  • 表面、皮膜および薄膜

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