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Warm white-light emission harvesting with enhanced color rendering index in conventional alloyed CdS0.7Se0.3 quantum dots.
- Source :
- Materials Research Letters; Apr2022, Vol. 10 Issue 4, p264-270, 7p
- Publication Year :
- 2022
-
Abstract
- Warm WLED with high color rendering index (CRI) are greatly required for the widespread use of solid-state lighting especially indoors. Here, a remarkable improvement of CRI in alloyed CdS<subscript>0.7</subscript>Se<subscript>0.3</subscript> QDs was achieved by pressure engineering. Notably, white light with enhanced CRI of 93, higher than pristine CRI of 47, was retained upon the complete release of pressure, accompanied by a color change from 'natural' (4298 K) to 'warm' white light (2170 K). Synchrotron ADXRD shows that CdS<subscript>0.7</subscript>Se<subscript>0.3</subscript> QDs experienced an irreversible phase transition from the zinc blende phase to rocksalt structure. Warm white light with enhanced color rendering index of 93 is achieved by pressure processing, accompanied by a color change from 'natural' (4298 K) to 'warm' white light (2170 K). [ABSTRACT FROM AUTHOR]
- Subjects :
- QUANTUM dots
SPHALERITE
COLOR
PHASE transitions
ALLOY powders
Subjects
Details
- Language :
- English
- ISSN :
- 21663831
- Volume :
- 10
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Materials Research Letters
- Publication Type :
- Academic Journal
- Accession number :
- 155633445
- Full Text :
- https://doi.org/10.1080/21663831.2022.2036839