International Journal Publication
Ladder-type dihydronaphtho [1, 2, 3, 4-rst] pentaphene as building block to construct hole-transporting materials for perovskite solar cells
Author affiliations and roles
- aDepartment of Chemistry, Chung Yuan Christian University, 320, Zhongli, Taoyuan, Taiwan
- bDepartment of Chemistry, Tunghai University, Taichung, 40704, Taiwan
- cDepartment of Chemical and Materials Engineering, Chang Gung University, 33302, Taoyuan, Taiwan
- dCenter for Green Technology, Chang Gung University, 33302, Taoyuan, Taiwan
- eDivision of Neonatology, Department of Pediatrics, Chang Gung Memorial Hospital, 33302, Taoyuan, Taiwan
- fDepartment of Applied Chemistry, Providence University, 433, Taichung, Taiwan HIGHLIGHTS • Three novel hole-transporting materials with DHNP moiety have been synthesized. • The DHNP is a potential candidate for constructing stable and efficient PSCs. • The best device performance was the DC-1 -based device with PCE of 18.09%.
Journal of Power Sources, 581, 233496 (2023).
Research topic: Hole-Transporting Materials
Abstract
The stability and photovoltaic performance of perovskite solar cells (PSCs) are greatly affected by the use of holetransporting materials (HTMs). Polycyclic aromatic hydrocarbons (PAHs) are known for their planar structures, which facilitate efficient charge transport and intermolecular interactions, resulting they possess unique electronic and optical properties. In this study, we describe the synthesis of three D-7C-D type PAHs-based HTMs compounds (DC-1, DC-2, and DC-3) that contain dihydronaphtho[1,2,3,4-rst]pentaphene (DHNP) as a 7C conjugation bridge, p-methoxy group-substituted arylamine, and diphenylamine-substituted carbazole groups as the donor groups. These DHNP-based molecules can be used as hole-transporting materials in PSCs due to their favorable frontier molecular orbitals (HOMO/LUMO) energy levels. The PSC devices fabricated with DC-1 yielded a highly efficient power conversion efficiency (PCE) of 18.09%, outperforming those based on DC-2 (13.21%) and DC-3 (14.91%), and slightly higher than those using control spiro-OMeTAD (16.93%). The proposed novel D-7C-D molecules demonstrate potential as HTMs with promising performance for PSCs and contribute to the development of high-efficiency perovskite solar cells.
Keywords
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