TY - JOUR
T1 - The underlying reason of DIO additive on the improvement polymer solar cells performance
AU - Wang, Zixuan
AU - Zhang, Fujun
AU - Li, Lingliang
AU - An, Qiaoshi
AU - Wang, Jian
AU - Zhang, Jian
PY - 2014/6/30
Y1 - 2014/6/30
N2 - The effect of 1,8-diiodooctane (DIO) on the performance enhancement of polymer solar cells (PSCs) based on [6,6]phenyl-C 71 -butyric acid methyl ester (PC 71 BM) as the acceptor and poly[(4,8-bis-(2- ethylhexyloxy)-benzo[1,2-b:4,5-b′](dithiophene)-2,6-diyl-alt-(4-(2- ethylhexanoyl)-thieno[3,4-b]thiophene)-2,6-diyl](PBDTTT-C) as the donor was investigated from the device physics researches. The short circuit current density (J sc ) was increased from 8.84 to 12.11 mA/cm 2 , fill factor (FF) was increased from 44.5% to 63.1%, resulting in power conversion efficiency (PCE) with 80% improvement from 2.95% to 5.35% by adding DIO with 3% volume ratio. The enhancement of performance of PSCs could be mainly attributed to the improved charge carrier transport and increased optical field strength in the active layer by adding DIO additive.
AB - The effect of 1,8-diiodooctane (DIO) on the performance enhancement of polymer solar cells (PSCs) based on [6,6]phenyl-C 71 -butyric acid methyl ester (PC 71 BM) as the acceptor and poly[(4,8-bis-(2- ethylhexyloxy)-benzo[1,2-b:4,5-b′](dithiophene)-2,6-diyl-alt-(4-(2- ethylhexanoyl)-thieno[3,4-b]thiophene)-2,6-diyl](PBDTTT-C) as the donor was investigated from the device physics researches. The short circuit current density (J sc ) was increased from 8.84 to 12.11 mA/cm 2 , fill factor (FF) was increased from 44.5% to 63.1%, resulting in power conversion efficiency (PCE) with 80% improvement from 2.95% to 5.35% by adding DIO with 3% volume ratio. The enhancement of performance of PSCs could be mainly attributed to the improved charge carrier transport and increased optical field strength in the active layer by adding DIO additive.
KW - DIO additive
KW - Interference of light
KW - Polymer solar cells
KW - Transfer matrix method
UR - http://www.scopus.com/inward/record.url?scp=84899903016&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2014.03.041
DO - 10.1016/j.apsusc.2014.03.041
M3 - Article
AN - SCOPUS:84899903016
SN - 0169-4332
VL - 305
SP - 221
EP - 226
JO - Applied Surface Science
JF - Applied Surface Science
ER -