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Advanced Heterojunction Structure of Polymer Photovoltaic Cell Generating High Photocurrent with Internal Quantum Efficiency Approaching 100%
Author(s) -
Park Hui Joon,
Lee Jae Yong,
Lee Taehwa,
Guo L. Jay
Publication year - 2013
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201300245
Subject(s) - materials science , photocurrent , optoelectronics , heterojunction , polymer solar cell , photovoltaic system , quantum efficiency , polymer , solar cell , active layer , hybrid solar cell , absorption (acoustics) , layer (electronics) , nanotechnology , composite material , ecology , biology , thin film transistor
An advanced heterojunction structure is introduced for polymer photovoltaic cells that can approach almost 100% internal quantum efficiency (IQE) even with over 300 nm thick electron‐donor layer for adequate light absorption. These devices show superior charge transport properties as well as non‐Langevin type bimolecular recombination. The resultant short circuit current of the device is about 50% higher than that of the thermally annealed BHJ polymer PV cell.