Article ; Online: High-Performance All-Small-Molecule Organic Solar Cells Fabricated via Halogen-Free Preparation Process.
ACS applied materials & interfaces
2024 Volume 16, Issue 2, Page(s) 2564–2572
Abstract: Small-molecule organic photovoltaic materials attract more attention attributing to their precisely defined structure, ease of synthesis, and reduced batch-to-batch variations. The majority of all-small-molecule organic solar cells (ASM-OSCs) have ... ...
Abstract | Small-molecule organic photovoltaic materials attract more attention attributing to their precisely defined structure, ease of synthesis, and reduced batch-to-batch variations. The majority of all-small-molecule organic solar cells (ASM-OSCs) have traditionally relied on halogenated solvents for dissolving photovoltaic materials as well as used for the additives or solvent vapor annealing. However, these halogen-based processes pose risks to the environment and human health, potentially impeding future commercial production. Herein, we conducted an investigation into the impact of various nonhalogen solvents on the performance of the devices. By selecting the high boiling point solvent toluene, we achieved a desirable phase separation and stable morphology characterized by fibrous crystals within the blend film. Consequently, the power conversion efficiencies of 14.4 and 11.7% were obtained from H31:Y6-based small-area (0.04 cm |
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Language | English |
Publishing date | 2024-01-02 |
Publishing country | United States |
Document type | Journal Article |
ISSN | 1944-8252 |
ISSN (online) | 1944-8252 |
DOI | 10.1021/acsami.3c14992 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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