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Materials for the Active Layer of Organic Photovoltaics: Ternary Solar Cell Approach
Author(s) -
Chen YungChung,
Hsu ChihYu,
Lin Ryan YehYung,
Ho KuoChuan,
Lin Jiann T.
Publication year - 2013
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201200609
Subject(s) - fullerene , organic solar cell , polymer solar cell , active layer , materials science , ternary operation , photovoltaics , polymer , photovoltaic system , energy conversion efficiency , nanotechnology , solar cell , absorption (acoustics) , optoelectronics , chemistry , layer (electronics) , organic chemistry , composite material , computer science , ecology , thin film transistor , biology , programming language
Power conversion efficiencies in excess of 7 % have been achieved with bulk heterojunction (BHJ)‐type organic solar cells using two components: p‐ and n‐doped materials. The energy level and absorption profile of the active layer can be tuned by introduction of an additional component. Careful design of the additional component is required to achieve optimal panchromatic absorption, suitable energy‐level offset, balanced electron and hole mobility, and good light‐harvesting efficiency. This article reviews the recent progress on ternary organic photovoltaic systems, including polymer/small molecule/functional fullerene, polymer/polymer/functional fullerene, small molecule/small molecule/functional fullerene, polymer/functional fullerene I/functional fullerene II, and polymer/quantum dot or metal/functional fullerene systems.