Preparation of F/Mn-doped CsPb(Br/Cl)3 quantum-dot glass and their luminescence properties

Author:

Sun Zhuqing1ORCID,Li Yongxia1ORCID,Bai Haowen1ORCID,Jin Shenghang1ORCID,Zhang Haibo1ORCID,Cao Guanying1ORCID

Affiliation:

1. Research Institute of Photonics, Dalian Polytechnic University, Dalian 116034, P. R. China

Abstract

All inorganic lead halide cesium perovskite quantum dots (QDs) have attracted much attention due to their excellent luminescence properties, but further development is restricted by their stability and the existence of toxic element lead. In this paper, F/Mn-doped [Formula: see text] QDs glass was prepared by melt quenching and heat treatment, with reduced Pb content effectively. The result shows that the spectrum of the QD glass is adjustable between 450 nm and 515.4 nm by changing the feeding ratio of Mn-Pb ion and heat treatment temperature. Moreover, the indraught of [Formula: see text] effectively improves the PLQY of [Formula: see text] QDs glass and serves as a red-emitting. The prepared composites not only maintain good fluorescence characteristics, but also greatly improve the stability of QDs. And successfully coupled with blue LED chips to synthesize WLED, Under 20 mA current, the color coordinate is (0.3446, 0.3389).

Funder

General Project of Liaoning Provincial Education Department

Publisher

World Scientific Pub Co Pte Ltd

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