Quasiplanar Heterojunction All-Polymer Solar Cells: A Dual Approach to Stability

Cao, Congcong1,2; Wang, Hengtao1,2; Qiu, Dongsheng1,2; Zhao, Tingxing1,2; Zhu, Yulin1,2; Lai, Xue1,2; Pu, Mingrui1,2; Li, Yan1,2; Li, Heng1,2; Chen, Hui1,2,3; He, Feng1,2,4

2022-05-01

10.1002/adfm.202201828

ADVANCED FUNCTIONAL MATERIALS   影响因子和分区

1616-301X

1616-3028

In addition to efficiency, stability is another key factor in developing organic solar cells. The quasiplanar heterojunction (Q-PHJ) structure, combining two pure layers as major and tiny nanoscale bulk heterojunction (BHJ) at interface, demonstrates superior device stability compared with BHJ devices. In this contribution, the polymer donor, PBQx-H-TF, and configurationally defined polymeric acceptor, PBTIC-gamma-TSe are synthesized and used to fabricate bilayer devices by orthogonal solvents, the corresponding Q-PHJ all-polymer solar cells (all-PSCs) deliver reliable stability with high efficiency. An encouraging PCE of 15.77% is achieved, which is the highest one among Q-PHJ all-PSCs with real-bilayer structure. There is a major improvement over the 13.91% PCE in the BHJ device, and the carrier transport performance is improved substantially following the reduction of recombination in the Q-PHJ all-PSCs. Benefiting from the bilayer morphology, the stability of Q-PHJ all-PSCs has been greatly enhanced over that of the BHJ devices. The charge recombination process is also more serious in the aging BHJ compared with the aging Q-PHJ all-PSCs. This work inspires the application of Q-PHJ in the preparation of high-efficient all-PSCs, but also provides guidance on the improvement of device stability from a dual approach of material and device engineering aspects.

all-polymer solar cells polymer acceptors polymer donors quasiplanar heterojunction (Q-PHJ) stability

SCI ; EI

英语

NI论文

第一 ; 通讯

National Natural Science Foundation of China[21733005,21975115] ; Shenzhen Fundamental Research Program["JCYJ20200109140801751","JCYJ20190809163011543","JCYJ20210324120010028"] ; Guangdong Provincial Key Laboratory of Catalysis[2020B121201002] ; Guangdong Innovative and Entrepreneurial Research Team Program[2016ZT06G587] ; Shenzhen Sci-Tech Fund[KYTDPT20181011104007]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000790256300001

WILEY-V C H VERLAG GMBH

20221912083736

Air navigation ; Efficiency ; Organic solar cells ; Stability

Air Navigation and Traffic Control:431.5 ; Solar Cells:702.3 ; Semiconductor Devices and Integrated Circuits:714.2 ; Production Engineering:913.1

MATERIALS SCIENCE

Web of Science

1.Southern Univ Sci & Technol, Shenzhen Grubbs Inst, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China
3.Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China
4.Southern Univ Sci & Technol, Guangdong Prov Key Lab Catalysis, Shenzhen 518055, Guangdong, Peoples R China

Cao, Congcong,Wang, Hengtao,Qiu, Dongsheng,et al. Quasiplanar Heterojunction All-Polymer Solar Cells: A Dual Approach to Stability[J]. ADVANCED FUNCTIONAL MATERIALS,2022,32.

Cao, Congcong.,Wang, Hengtao.,Qiu, Dongsheng.,Zhao, Tingxing.,Zhu, Yulin.,...&He, Feng.(2022).Quasiplanar Heterojunction All-Polymer Solar Cells: A Dual Approach to Stability.ADVANCED FUNCTIONAL MATERIALS,32.

Cao, Congcong,et al."Quasiplanar Heterojunction All-Polymer Solar Cells: A Dual Approach to Stability".ADVANCED FUNCTIONAL MATERIALS 32(2022).