Controlled growth of ZnPc thin films for photovoltaic applications

Ying Zhou, Tetsuya Taima, Yosei Shibata, Tetsuhiko Miyadera, Toshihiro Yamanari, Yuji Yoshida

研究成果: Conference article査読

3 被引用数 (Scopus)

抄録

The growth of ultra-high-vacuum evaporated ZnPc films was discussed in detail. The effects of growth rate and substrate temperature on the film morphology are investigated by atomic force microscopy. It is clear that growth conditions play a very important role in the surface morphology. High substrate temperature leads to the formation of larger grain. The relationship between ZnPc morphology and organic photovoltaic properties is discussed. PCE of the device using ZnPc grown at 90 °C and 0.12 Å/s is enhanced by a factor of 71% relative to the device using ZnPc grown at 0.02 Å/s. Moreover, the devices prepared at room temperature exhibit relatively higher PCE due to the significant improvements in photocurrent, open-circuit voltage. These results directly imply that controlled growth of the organic films plays a crucial role in further improving the device performances.

本文言語English
ページ(範囲)221-225
ページ数5
ジャーナルPhysics Procedia
14
DOI
出版ステータスPublished - 2011
外部発表はい
イベント9th International Conference on Nano-Molecular Electronics, ICNME 2010 - Kobe, Japan
継続期間: 2010 12 142010 12 16

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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