TY - JOUR
T1 - Effect of topological structure on photoluminescence of CsPbBr3 quantum dot doped glasses
AU - Zhang, Ke
AU - Zhou, Dacheng
AU - Qiu, Jianbei
AU - Wang, Qi
AU - Lai, Junan
AU - Wang, Dazhao
AU - Li, Zhencai
AU - Shen, Weihui
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China (grant numbers 11774138, 51862020, 11804255, and 11664022) and Foundation of Yunnan Province (grant numbers 2019HC016).
Funding Information:
This work was supported by the National Natural Science Foundation of China (grant numbers 11774138 , 51862020 , 11804255 , and 11664022 ) and Foundation of Yunnan Province (grant numbers 2019HC016 ).
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/6/15
Y1 - 2020/6/15
N2 - Glasses doped with CsPbBr3 quantum dots (QDs) were prepared by a conventional melt-quenching process followed by heat treatment, which exhibit good thermal stabilities and optical properties. A narrow visible photoluminescence (PL) emission (508–528 nm) band with a shift in luminescence peak position and a significant change in emission intensity was observed, depending on the B2O3 concentration. Transmission electron microscopy (TEM) showed changes in the size and number of QDs with change in glass composition. The PL decay time was about 0.92–1.58 us, and it showed an increasing trend with increasing size of the QDs. With decreasing concentration of B2O3, the network structure of the glass exhibit a high aggregated state, thus providing sufficient growth space to the QDs. The luminescence of the QDs glass was found to be controlled by changing glass topology. The tunable narrow band emission of CsPbBr3 QDs doped glass may have potential applications in new generation of display materials.
AB - Glasses doped with CsPbBr3 quantum dots (QDs) were prepared by a conventional melt-quenching process followed by heat treatment, which exhibit good thermal stabilities and optical properties. A narrow visible photoluminescence (PL) emission (508–528 nm) band with a shift in luminescence peak position and a significant change in emission intensity was observed, depending on the B2O3 concentration. Transmission electron microscopy (TEM) showed changes in the size and number of QDs with change in glass composition. The PL decay time was about 0.92–1.58 us, and it showed an increasing trend with increasing size of the QDs. With decreasing concentration of B2O3, the network structure of the glass exhibit a high aggregated state, thus providing sufficient growth space to the QDs. The luminescence of the QDs glass was found to be controlled by changing glass topology. The tunable narrow band emission of CsPbBr3 QDs doped glass may have potential applications in new generation of display materials.
KW - CsPbBr QDs
KW - Glass
KW - Topological structure
UR - http://www.scopus.com/inward/record.url?scp=85078989710&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2020.154111
DO - 10.1016/j.jallcom.2020.154111
M3 - Journal article
AN - SCOPUS:85078989710
SN - 0925-8388
VL - 826
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
M1 - 154111
ER -