Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 61, Issue 14, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202117087
Keywords
ICT Effect; Donor-Acceptor Systems; Electricity Generation; Solar-Thermal Conversion; Water Purification
Categories
Funding
- National Natural Science Foundation of China [51803069]
- Outstanding Youth Foundation of Heilongjiang Scientific Committee [YQ2021E001]
- China Postdoctoral Science Foundation [2018M631892]
- Science and Technology Research Project of the Education Department of Jilin Province, China [JJKH20211043KJ]
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The GDPA-QCN material presented in this contribution features a unique molecular structure that allows for efficient energy dissipation and a broad absorption range, leading to superior performance in solar-thermal conversion for water purification and electricity generation.
In this contribution, a unique donor-acceptor conjugated organic-small-molecule photothermal material, namely GDPA-QCN, is presented. Bulky dendritic triphenylamine (GDPA) was grafted onto quinoxaline-6,7-dicarbonitrile (QCN) with a phenyl ring as a bridge to form an umbrella architecture. Benefited from the particular molecular structure, in solid state, GDPA-QCN molecules adopted a loose packing mode due to the steric effect of umbrella head dendritic triphenyl-amine and flexible molecular structure feature, which allows efficient intramolecular motions and consequently elevates energy dissipation by taking the pathway of thermal deactivation within broad absorption range. The GDPA-QCN solid has high solar-thermal conversion efficiency with an absorption range from 300 to 1100 nm, which can promote superior water purification and electricity generation performance.
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