3RD INTERNATIONAL CONGRESS ON TECHNOLOGY - ENGINEERING & SCIENCE - Kuala Lumpur - Malaysia (2017-02-09)

High Efficiency Small Molecular Organic Solar Cells With Non-fullerene Acceptor
Solution-processed organic solar cells (OSCs) offer the attractive prospect of light-weight, low-cost and sustainable solar energy production. OSCs with the most promising bulk-heterojunction (BHJ) architecture have achieved power conversion efficiency (PCE) close to 11%. Meanwhile, non-fullerene OSCs have also been advancing by the need to detect alternative acceptors that overcome poor bandgap tenability, limited optical absorption, the high synthetic costs and morphological uncertainty of fullerene derivatives including such as phenyl-C61-butyric acid methyl ester (PC60BM) . Small molecules(SM) have distinct advantages such as significant high purity molecular structures, intermolecular arrangements generally known by easy synthesis and purification methods, crystallographic analysis, better batch-to-batch reproducibility, a high open circuit voltage (VOC) relatively high charge carrier mobility.
Min Jae Sung, Yeon Hee Ha, Hyosung Choi, Soon-Ki Kwon, Yun-Hi Kim