Issue 42, 2023

Heavy-metal-free blue-emitting ZnSe(Te) quantum dots: synthesis and light-emitting applications

Abstract

Colloidal quantum dots (QDs) possess superb optoelectronic properties, making them suitable as light emitters. However, the toxicity of classical Cd/Pb QDs with high luminescence efficiency restricts their further industrial light-emitting applications. Heavy-metal-free ZnSe(Te) QDs are regarded as the most promising alternative to Cd/Pb-based QD blue emitters, which are expected to solve the problems through which InP QDs struggle to achieve efficient blue emission. However, the realization of ZnSe(Te) QDs and light-emitting devices with high efficiency, high stability, and narrow emission faces huge challenges. In this review, the synthesis of ZnSe(Te) QDs is reviewed, and their improvement strategies including bandgap engineering and surface passivation are introduced and discussed. The progress regarding blue ZnSe(Te)-based light-emitting applications is summarized. Finally, a brief outlook is provided, highlighting the current challenges being faced, their possible solutions, and future development directions.

Graphical abstract: Heavy-metal-free blue-emitting ZnSe(Te) quantum dots: synthesis and light-emitting applications

Article information

Article type
Review Article
Submitted
30 jul 2023
Accepted
28 set 2023
First published
05 out 2023

J. Mater. Chem. C, 2023,11, 14495-14514

Heavy-metal-free blue-emitting ZnSe(Te) quantum dots: synthesis and light-emitting applications

X. Deng, F. Zhang, Y. Zhang and H. Shen, J. Mater. Chem. C, 2023, 11, 14495 DOI: 10.1039/D3TC02699J

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements