Rylene Annulated Subphthalocyanine: A Promising Cone-Shaped Non-Fullerene Acceptor for Organic Solar Cells

Huang, Tengda1,4; Chen, Hui3; Feng, Jiajing2; Zhang, Andong2; Jiang, Wei1; He, Feng3; Wang, Zhaohui2

2019-10

10.1021/acsmaterialslett.9b00221

ACS Materials Letters   影响因子和分区

2639-4979

2639-4979

The development of various non-fullerene acceptors has further promoted the efficiencies of organic solar cells in the past years. Subphthalocyanine has been recently emerging as an electron acceptor that has unique cone geometry, multiple functionalization, and broad absorption. Here, we designed and synthesized two fully conjugated rylene annulated subpthalocyanines (SubPcPDI3-Cl and SubPcPDI3-(OC6H4Bu)-Bu-t) bearing different axial substituents. Theoretical calculation revealed a cone-shaped and fully conjugated molecular geometry, and the dihedral angle between perylene diimide (PDI) wings and cone base is similar to 25 degrees. Both acceptors showed red-shifted absorbance at similar to 680 nm and optical bandgaps of similar to 1.70 eV, because of the pi-electron conjugation of between the SubPc core and surrounded PDI wings. Thus, the broad absorption, aligned energy levels, and balanced hole/electron mobility ratio endow SubPcPDI3-Cl an excellent power conversion efficiency of 7.53% in non-fullerene solar cells, which presents the highest photovoltaic performance based on subphthalocyanines in solution-processed solar cells.

ESCI ; EI

英语

通讯

National Natural Science Foundation of China (NSFC)[21790361][21734009][51673202] ; National Key R&D Program of China[2017YFA0204701] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2017048] ; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences[DE-AC02-06CH11357]

Materials Science

Materials Science, Multidisciplinary

WOS:000519825400004

AMER CHEMICAL SOC

20213610849438

Conversion efficiency ; Dihedral angle ; Fullerenes ; Hole mobility ; Red Shift

Energy Conversion Issues:525.5 ; Aircraft, General:652.1 ; Semiconducting Materials:712.1 ; Nanotechnology:761 ; Chemical Products Generally:804

Web of Science

1.Chinese Acad Sci, Inst Chem, CAS Res Educ Ctr Excellence Mol Sci, Beijing 100190, Peoples R China
2.Tsinghua Univ, Dept Chem, Key Lab Organ Optoelect & Mol Engn, Beijing 100084, Peoples R China
3.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Huang, Tengda,Chen, Hui,Feng, Jiajing,et al. Rylene Annulated Subphthalocyanine: A Promising Cone-Shaped Non-Fullerene Acceptor for Organic Solar Cells[J]. ACS Materials Letters,2019,1(4):404-409.

Huang, Tengda.,Chen, Hui.,Feng, Jiajing.,Zhang, Andong.,Jiang, Wei.,...&Wang, Zhaohui.(2019).Rylene Annulated Subphthalocyanine: A Promising Cone-Shaped Non-Fullerene Acceptor for Organic Solar Cells.ACS Materials Letters,1(4),404-409.

Huang, Tengda,et al."Rylene Annulated Subphthalocyanine: A Promising Cone-Shaped Non-Fullerene Acceptor for Organic Solar Cells".ACS Materials Letters 1.4(2019):404-409.