Triimide-Functionalized n-Type Polymer Semiconductors Enabling All-Polymer Solar Cells with Power Conversion Efficiencies Approaching 9%

Wang, Yingfeng1,2; Yan, Zhenglong1,2; Uddin, Mohammad Afsar3; Zhou, Xin1,2; Yang, Kun1,2; Tang, Yumin1,2; Liu, Bin1,2; Shi, Yongqiang1,2; Sun, Huiliang1,2; Deng, Aiying4; Dai, Junfeng4; Woo, Han Young3; Guo, Xugang1,2

2019-07

10.1002/solr.201900107

Solar RRL   影响因子和分区

2367-198X

Two triimide-functionalized n-type acceptor polymers are designed and synthesized, which show narrower bandgap, lower-lying frontier molecular orbital energy levels, and improved film morphology than the diimide-functionalized analogue polymers. When blended with a p-type donor polymer semiconductor PTB7-Th, an outstanding power conversion efficiency of 8.98% with a remarkable open-circuit voltage of 1.03 V is attained. This efficiency is among the highest values in all-polymer solar cells (all-PSCs) reported till today, surpassing that (6.85%) of the diimide-functionalized analogue polymers by a big margin and even higher than that (8.69%) of the fullerene-based solar cells. The results demonstrate that the triimide-functionalized f-BTI3 is an excellent building block for developing n-type polymer semiconductors, and the polymer f-BTI3-T is among the best-performing n-type polymers for applications in all-PSCs. The structure-property correlations of these imide-functionalized polymer semiconductors offer important guides for developing high-performance n-type polymer semiconductors.

all-polymer solar cells imide-functionalized polymers n-type polymer semiconductors organic electronics structure-property relationships

SCI ; EI

英语

第一 ; 通讯

NRF of Korea[2016M1A2A2940911] ; NRF of Korea[2015M1A2A2057506]

Energy & Fuels ; Materials Science

Energy & Fuels ; Materials Science, Multidisciplinary

WOS:000474482300001

WILEY-V C H VERLAG GMBH

20200908235831

Conversion efficiency ; Molecular orbitals ; Organic polymers ; Polymer solar cells

Energy Conversion Issues:525.5 ; Solar Cells:702.3 ; Physical Chemistry:801.4 ; Organic Polymers:815.1.1 ; Atomic and Molecular Physics:931.3

Web of Science

1.Southern Univ Sci & Technol SUSTech, Dept Mat Sci & Engn, 1088 Xueyuan Rd, Shenzhen 518055, Guangdong, Peoples R China
2.Southern Univ Sci & Technol SUSTech, Shenzhen Key Lab Printed Organ Elect, 1088 Xueyuan Rd, Shenzhen 518055, Guangdong, Peoples R China
3.Korea Univ, Dept Chem, 145 Anam Ro, Seoul 02841, South Korea
4.Southern Univ Sci & Technol SUSTech, Dept Phys, 1088 Xueyuan Rd, Shenzhen 518055, Guangdong, Peoples R China

Wang, Yingfeng,Yan, Zhenglong,Uddin, Mohammad Afsar,et al. Triimide-Functionalized n-Type Polymer Semiconductors Enabling All-Polymer Solar Cells with Power Conversion Efficiencies Approaching 9%[J]. Solar RRL,2019,3(7).

Wang, Yingfeng.,Yan, Zhenglong.,Uddin, Mohammad Afsar.,Zhou, Xin.,Yang, Kun.,...&Guo, Xugang.(2019).Triimide-Functionalized n-Type Polymer Semiconductors Enabling All-Polymer Solar Cells with Power Conversion Efficiencies Approaching 9%.Solar RRL,3(7).

Wang, Yingfeng,et al."Triimide-Functionalized n-Type Polymer Semiconductors Enabling All-Polymer Solar Cells with Power Conversion Efficiencies Approaching 9%".Solar RRL 3.7(2019).