Title :
Improved power conversion efficiency of inverted polymer solar cells by using squaraine additive
Author :
Hanyu Wang ; Xiao Wang ; Yifan Zheng ; Junsheng Yu
Author_Institution :
State Key Lab. of Electron. Thin Films & Integrated Devices, Univ. of Electron. Sci. & Technol. of China (UESTC), Chengdu, China
Abstract :
A small molecular dye 2,4-bis[4-(N,N-diisobut ylamino)-2,6-dihydroxyphenyl] squaraine (SQ) was used as additive to fabricate inverted polymer solar cells (PSCs) with poly-3 (hexylthiophene) (P3HT) and and [6,6]-phenyl C71-butyric acid methyl ester (PC71BM), and the influence of of SQ doping ratio on the PSCs performance was studied. The power conversion efficiency (PCE) can be improved from 2.99 % to 3.55 % by adding 6 wt% SQ. The extended absorption region was ascribed to the enhancement of PCE.
Keywords :
absorption; doping; polymers; solar cells; P3HT; PCE enhancement; PSC; SQ doping ratio; absorption region; inverted polymer solar cell; poly-3 hexylthiophene; power conversion efficiency; squaraine additive; Doping; Indium tin oxide; Polymers; additive; inverted device structure; polymer solar cells (PSCs); squaraine (SQ);
Conference_Titel :
Electron Devices and Solid-State Circuits (EDSSC), 2014 IEEE International Conference on
DOI :
10.1109/EDSSC.2014.7061212
