Abstract
1 nm CuO quantum dots (QDs) were produced in size-controlled super-micropores of a silica matrix. The reversible color change of the QDs from pale blue to deep green was clearly observed in a wide temperature range from 298 to 673 K. This particular thermochromism is ascribed to an enhanced bandgap shift depending on temperature with a strong electron-phonon coupling in the confined space of the 1 nm QDs. A dot matrix: 1 nm CuO quantum dots have been prepared in microporous silica. They exhibit unique and reversible color change from pale blue to deep green in a wide temperature range from 298 to 673 K. This thermochromism is ascribed to an enhanced bandgap shift that depends on temperature, with a strong electron-phonon coupling in the confined space of the 1 nm CuO quantum dots.
Original language | English |
---|---|
Pages (from-to) | 10706-10709 |
Number of pages | 4 |
Journal | Angewandte Chemie - International Edition |
Volume | 53 |
Issue number | 40 |
DOIs | |
Publication status | Published - 2014 Sep 26 |
Keywords
- microporous materials
- quantum dots
- template synthesis
- transition metal oxide
ASJC Scopus subject areas
- Catalysis
- Chemistry(all)