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"Makoto Karakawa,Kenji Suzuki,Takayuki Kuwabara,Tetsuya Taima,Keiji Nagai,Masahiro Nakano,Takahiro Yamaguchi,Kohshin Takahashi","Factors contributing to degradation of organic photovoltaic cells",,"Organic Electronics","Elsevier","Vol. 76",,,2019,Sept.