• 日本語
  • 英語

城戸・笹部研究室

ラボニュース

2015年02月07日
D3 王君の論文が Applied Physics Letters に掲載されました!

D3 王君の論文が Applied Physics Letters に掲載されました!王君おめでとう!

 

High fill factor and thermal stability of bilayer organic photovoltaic cells with an inverted structure 


Zhongqiang Wang1, Ziruo Hong1,2,a), Taojun Zhuang1, Guo Chen1, Hisahiro Sasabe1, Daisuke Yokoyama1,a) and Junji Kido1,a)

Appl. Phys. Lett. 106, 053305 (2015);

 

In this study, we fabricated planar heterojunction photovoltaic cells with inverted device structures based on tetraphenyldibenzoperiflanthene and fullerene-70 (C70). With proper designs of devicearchitecture and selection of electrode buffers, a high fill factor and power conversion efficiency were obtained due to large shunt resistance (Rsh) and efficient carrier collection. Optical simulation reveals that field-dependent recombination is depressed in the inverted structure cellsbecause of less light absorption in short wavelength range, resulting in high fill factor. More importantly, high thermal stability of inverted structure cells was demonstrated via utilizing stable electrode buffers.

ページトップへ