Ternary polymer solar cells with iridium-based polymer PM6Ir1 as a donor and N-3:ITIC-Th as an acceptor exhibiting over 17.2% efficiency
- Authors
- Zhang, Shuping; Zhang, Miao; Wang, Xuelin; Xu, Chunyu; Xu, Wenjing; Gao, Jinhua; Wang, Jian; Wong, Wai-Yeung; Son, Jae Hoon; Jeong, Sang Young; Woo, Han Young; Zhang, Fujun
- Issue Date
- 9-11월-2021
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- SUSTAINABLE ENERGY & FUELS, v.5, no.22, pp.5825 - 5832
- Indexed
- SCIE
SCOPUS
- Journal Title
- SUSTAINABLE ENERGY & FUELS
- Volume
- 5
- Number
- 22
- Start Page
- 5825
- End Page
- 5832
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/135752
- DOI
- 10.1039/d1se01258d
- ISSN
- 2398-4902
- Abstract
- Iridium-based polymer PM6Ir1 as an electron donor and two nonfullerene materials N-3 and ITIC-Th as electron acceptors were selected to prepare efficient polymer solar cells (PSCs). ITIC-Th was used as the third component to enhance photon harvesting and as a morphology regulator to optimize molecular arrangement and phase separation in the ternary active layer. Improvements in open circuit voltage (0.86 V vs. 0.84 V), short circuit current density (26.53 mA cm(-2)vs. 26.13 mA cm(-2)) and fill factor (75.47% vs. 74.11%) are simultaneously obtained for the PSCs with 10 wt% ITIC-Th in the acceptor mixture, leading to a power conversion efficiency (PCE) enhancement from 16.27% to 17.22%. The charge mobility and charge transport balance in the ternary active layer can be enhanced by incorporating ITIC-Th, resulting from the optimized phase separation and molecular arrangement with ITIC-Th as a morphology regulator. The positive effect of ITIC-Th incorporation on PCE improvement can be demonstrated by the relatively high external quantum efficiency values of the optimal ternary PSCs in the spectral range from 300 to 820 nm.
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Collections - College of Science > Department of Chemistry > 1. Journal Articles
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