期刊
APPLIED PHYSICS LETTERS
卷 101, 期 3, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4737902
关键词
-
资金
- National Science Foundation MRSEC Program [DMR-0819885]
- University of Minnesota Initiative for Renewable Energy and the Environment
- University of Minnesota Doctoral Dissertation Fellowship
In this work, we describe the performance of organic photovoltaic cells (OPVs) based on the electron donor-acceptor pairing of boron subphthalocyanine chloride (SubPc) and C-70. As an acceptor, C-70 is a promising alternative to C-60 due to its red-shifted absorption edge and large extinction coefficient, permitting increased photocurrent generation. In uniformly mixed OPVs based on SubPc: C-70, peak power conversion efficiency is realized in devices containing 80 wt.% C-70. Further enhancement in device performance can be realized through the use of a continuously graded donor-acceptor heterojunction. The optimized graded heterojunction OPV shows a power conversion efficiency of eta(P) (5.4 +/- 0.2)% under simulated AM1.5G solar illumination at 100 mW/cm(2). This efficiency is significantly larger than the value of eta(P) (4.5 +/- 0.1)% realized using C-60 due to a substantial increase in the short-circuit current density. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4737902]
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据