@article { ISI:000354575700001,
	title = {Reversible photoinduced bi-state polymer solar cells based on fullerene derivatives with azobenzene groups},
	journal = {ORGANIC ELECTRONICS},
	volume = {23},
	year = {2015},
	month = {AUG},
	pages = {1-4},
	abstract = {[6,6]-Phenyl-C61-butyric acid-4\&$\#$039;-hydroxyl-azobenzene ester (PCBAb) was synthesized and used as the acceptor in the fabrication of reversible UV-VIS response bi-state polymer solar cells (PSCs) based on the photoinduced cis-trans isomerization of PCBAb. The device can be switched between {\textquoteleft}{\textquoteleft}active\&$\#$039;\&$\#$039; and {\textquoteleft}{\textquoteleft}sleep\&$\#$039;\&$\#$039; by the irradiation of UV and visible light, respectively. The active device has a PCE of 2.0\%. With UV irradiation, the device goes to {\textquoteleft}{\textquoteleft}sleep\&$\#$039;\&$\#$039; with a lowered PCE (0.4\%), and simultaneously decreased J(sc), V-oc and FF, while after visible light treatment, the device is made {\textquoteleft}{\textquoteleft}active\&$\#$039;\&$\#$039; again. The mechanism of the bi-state process involves the different electron mobilities of the isomers. (C) 2015 Elsevier B.V. All rights reserved.},
	issn = {1566-1199},
	doi = {10.1016/j.orgel.2015.03.046},
	author = {Ma, Shengbo and Ting, Hungkit and Zhang, Lipei and Ma, Yingzhuang and Zheng, Lingling and Xiao, Lixin and Chen, Zhijian}
}
