Work

Warm white-light emission harvesting with enhanced color rendering index in conventional alloyed CdS0.7Se0.3 quantum dots

Year: 2022

Type: article

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 CdS0.7Se0.3 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 CdS0.7Se0.3 QDs experienced an irreversible phase transition from the zinc blende phase to rocksalt structure.

Source: Materials Research Letters

DOI: 10.1080/21663831.2022.2036839

Authors: Songrui Yang, Pengfei Lv, Zhiwei Ma, Kai Wang, Guanjun Xiao, Bo Zou

Institutions: Jilin University, State Key Laboratory of High Pressure and Superhard Materials

Language: English

Topic: Quantum Dots Synthesis And Properties

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,459

Funders: National Natural Science Foundation of China, China Postdoctoral Science Foundation, National Key Research and Development Program of China