Citation: Zhiyang Zhang, Yi Chen, Yingnan Zhang, Chuanlang Zhan. Deuterated chloroform replaces ultra-dry chloroform to achieve high-efficient organic solar cells[J]. Chinese Chemical Letters, ;2025, 36(1): 110083. doi: 10.1016/j.cclet.2024.110083 shu

Deuterated chloroform replaces ultra-dry chloroform to achieve high-efficient organic solar cells

Key Laboratory of Advanced Materials Chemistry and Devices (AMCDLab) of the Department of Education of Inner Mongolia Autonomous Region, College of Chemistry and Environment Science, Inner Mongolia Normal University, Huhehot 010022, China

clzhan@imnu.edu.cn

Received Date: 19 March 2024
Revised Date: 31 May 2024
Accepted Date: 2 June 2024
Available Online: 3 June 2024

Figures(3)

Chloroform is a common and excellent solvent for preparing high-efficient organic solar cells (OSCs), however, it is toxic and poisonable chemical. In comparisons, deuterated chloroform (DC) is less toxic and costly, and particularly, it is non-poisonable chemical. In this paper, we use DC to replace ultra-dry chloroform (UC) as the processing solvent for preparation of active layers of organic solar cells. First, we selected PM6:BTP-eC9 as the basic binary and counted 100 solar cells' data, from which comparable device performance were obtained with use of DC and UC. Interestingly, DC showed better reproducibility, superior storage under a nitrogen atmosphere and a little better performance than UC. Both DC and UC gave rise of comparable hole and electron mobilities and similar charge recombination losses. Second, we based PM6:Y6 and D18-Cl: Y6 as the binaries and similar effects were obtained from both UC and DC when counting 30 devices for each binary. Third, the universality of the use of DC for preparing high-efficient OSCs were again checked with several binary and ternary systems. In all, this study demonstrate that DC can replace UC for use in the field of OSCs.
- Organic solar cell,
- Processing solvent,
- Deuterated chloroform,
- Ultra-dry chloroform,
- Active layer
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