TY - JOUR
T1 - Broadband EQE enhancement in organic solar cells with multiple-shaped silver nanoparticles
T2 - Optical coupling and interfacial engineering
AU - Hao, Yang
AU - Hao, Yuying
AU - Sun, Qinjun
AU - Cui, Yanxia
AU - Li, Zhanfeng
AU - Ji, Ting
AU - Wang, Hua
AU - Zhu, Furong
N1 - Funding information:
This research work was financially supported by National Natural Scientific Foundation of China (61274056, 61475109 and 61571317), Key Research and Development (International Cooperation) Program of Shanxi (201603D421042), and Platform and Base Special Project of Shanxi (201605D131038). Y.X. Cui also acknowledges the Young Talents Program and Young Sanjin Scholars Program of Shanxi Province. F.R. Zhu acknowledges the support by Research Grants Council of Hong Kong Special Administrative Region,
Publisher copyright:
© 2017 Elsevier Ltd. All rights reserved.
PY - 2017/3/1
Y1 - 2017/3/1
N2 - A comprehensive study of the effect of interlayer with different shaped nanosphere, nanocube and nanoprism silver nanoparticles (Ag NPs) on the performance of organic solar cells (OSCs), based on the blend system of [poly [4,8-bis [(2-ethylhexyl)oxy]benzo [1,2-b:4,5-b’]dithiophene-2,6-diyl] [3-fluoro-2-[(2-ethylhexyl)-carbonyl]-thieno-[3,4-b]thiophenediyl](PTB7):[[6,6]-phenyl-C70-butyric acid methyl ester](PC70BM), was carried out. The results indicate that the OSCs having a combination of different shaped Ag NPs are more favorable for efficient light harvesting. The use of the mixed Ag NPs ethanol solution benefits the performance of the OSCs in two ways: (1) to enhance light absorption in the PTB7:PC70BM active layer through the coupling of localized surface plasmon resonance excited by different shaped Ag NPs, (2) to facilitate homogenous vertical phase separation favoring the exciton dissociation, charge transport and collection. The combination of these effects results in an average power conversion efficiency of 7.90%, which is higher than that of the optimized control cell (6.73%) made without Ag NPs. The results of this work provide a useful guidance for the development of high efficiency OSCs containing Ag NPs via solution fabrication route.
AB - A comprehensive study of the effect of interlayer with different shaped nanosphere, nanocube and nanoprism silver nanoparticles (Ag NPs) on the performance of organic solar cells (OSCs), based on the blend system of [poly [4,8-bis [(2-ethylhexyl)oxy]benzo [1,2-b:4,5-b’]dithiophene-2,6-diyl] [3-fluoro-2-[(2-ethylhexyl)-carbonyl]-thieno-[3,4-b]thiophenediyl](PTB7):[[6,6]-phenyl-C70-butyric acid methyl ester](PC70BM), was carried out. The results indicate that the OSCs having a combination of different shaped Ag NPs are more favorable for efficient light harvesting. The use of the mixed Ag NPs ethanol solution benefits the performance of the OSCs in two ways: (1) to enhance light absorption in the PTB7:PC70BM active layer through the coupling of localized surface plasmon resonance excited by different shaped Ag NPs, (2) to facilitate homogenous vertical phase separation favoring the exciton dissociation, charge transport and collection. The combination of these effects results in an average power conversion efficiency of 7.90%, which is higher than that of the optimized control cell (6.73%) made without Ag NPs. The results of this work provide a useful guidance for the development of high efficiency OSCs containing Ag NPs via solution fabrication route.
KW - Interfacial engineering
KW - Optical coupling
KW - Organic solar cells
KW - Silver nanoparticles
UR - http://www.scopus.com/inward/record.url?scp=85018267189&partnerID=8YFLogxK
U2 - 10.1016/j.mtener.2016.12.005
DO - 10.1016/j.mtener.2016.12.005
M3 - Journal article
AN - SCOPUS:85018267189
SN - 2468-6069
VL - 3
SP - 84
EP - 91
JO - Materials Today Energy
JF - Materials Today Energy
ER -
