期刊
JOURNAL OF LUMINESCENCE
卷 186, 期 -, 页码 30-33出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jlumin.2017.01.040
关键词
CdS/Cd1-xZnxS; Sandwich-structured quantum dot; Quantum efficiency; Glass; Photoluminescence
类别
资金
- Program for New Century Excellent Talents in University [NCET-13-0943]
- Chutian Scholar Program of Hubei Province
CdS/Cd1-xZn S sandwich-structured quantum dots (QDs) were precipitated in silicate glasses with high quantum efficiency up to 53%. The QDs were composed by a CdS core with a Cd1-xZnxS shell of about 1-3 nm in thickness through heat-treatment at 550 degrees C for 10 h. With the increased heat-treatment temperature, the intensity ratio between the intrinsic emission and the defects emission increased and the Stokes shift decreased from 84 to 4 meV, which was caused by both the increased size and passivated surface defects of the QDs. (C) 2017 Elsevier B.V. All rights reserved.
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