Bright Alloy CdZnSeZnSe QDs with Nonquenching Photoluminescence at High Temperature and Their Application to Light-Emitting Diodes
Joint Authors
Yang, Peizhi
Zhang, Tingting
Zhang, Xugu
Bai, Jinke
Chang, Chun
Jin, Xiao
Zhao, Feng
Huang, Yan
Li, Feng
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-03-05
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Stable luminance properties are essential for light-emitting devices with excellent performance.
Thermal photoluminescence (PL) quenching of quantum dots (QDs) under a high temperature resulting from a surface hole or electron traps will lead to unstable and dim brightness.
After treating CdZnSe/ZnSe QDs with TBP, which is a well-known passivation reagent of the anions, the excess Se sites on the surface of the QDs were removed and their PL quantum yields (QYs) was improved remarkable.
Furthermore, after TBP treatment, the CdZnSe/ZnSe QDs exhibit no quenching phenomena even at a high temperature of 310°C.
The electroluminescent light-mitting diodes based on the QDs with TBP treatment also demonstrated satisfied performance with a maximum current density of 1679.6 mA/cm2, a peak luminance of 89500 cd/m2, and the maximum values of EQE and luminescence efficiency are 15% and 14.9 cd/A, respectively.
The performance of the fabricated devices can be further improved providing much more in-depth studies on the CdZnSe/ZnSe QDs.
American Psychological Association (APA)
Zhang, Tingting& Zhang, Xugu& Yang, Peizhi& Bai, Jinke& Chang, Chun& Jin, Xiao…[et al.]. 2019. Bright Alloy CdZnSeZnSe QDs with Nonquenching Photoluminescence at High Temperature and Their Application to Light-Emitting Diodes. Journal of Nanomaterials،Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1183369
Modern Language Association (MLA)
Zhang, Tingting…[et al.]. Bright Alloy CdZnSeZnSe QDs with Nonquenching Photoluminescence at High Temperature and Their Application to Light-Emitting Diodes. Journal of Nanomaterials No. 2019 (2019), pp.1-8.
https://search.emarefa.net/detail/BIM-1183369
American Medical Association (AMA)
Zhang, Tingting& Zhang, Xugu& Yang, Peizhi& Bai, Jinke& Chang, Chun& Jin, Xiao…[et al.]. Bright Alloy CdZnSeZnSe QDs with Nonquenching Photoluminescence at High Temperature and Their Application to Light-Emitting Diodes. Journal of Nanomaterials. 2019. Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1183369
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1183369