Optical properties and NIR Photoluminescence of Dy3+ doped CdS Q-dots dispersed in borosilicate glass for biophotonics applications.

被引：0
|
作者：
Barimah, Eric Kumi [1 ]
Liu, Yinshen [1 ]
Al-Murish, Mohanad [1 ]
Jha, Animesh [1 ]
机构：
[1] Univ Leeds, Sch Chem & Proc Engn, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England
来源：
EOS ANNUAL MEETING, EOSAM 2024 | 2024年 / 309卷
关键词：
QUANTUM DOTS;
D O I：
10.1051/epjconf/202430906012
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We synthesised CdS Q-dots and Dy3+ doped CdS Q-dots dispersed in borosilicate glasses and evaluated their optical and NIR photoluminescence properties. When excited with an 800nm source, new strong photoluminescence emissions from 850 to 1150 nm were observed in the NIR are reported. These new find states may be attributed to NIR virtual or trap states of the CdS S-Qdot. The strong photoluminescence emission spectrum observed from 850 to 950 nm corresponds to electron-hole recombination for as-prepared CdS-Q-dot glasses. However, this photoluminescence emission disappeared upon heat treatment due to photoluminescence emission from defect states.
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页数：2
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