CuInS2 Nanocrystals Embedded PMMA Composite Films: Adjustment of Polymer Molecule Weights and Application in Remote-Type White LEDs

Author:

Zhou Qingchao1ORCID,Shang Zhongyi1

Affiliation:

1. School of Jewelry, West Yunnan University of Applied Sciences, Tengchong 679100, China

Abstract

The commercial application of colloidal semiconductor nanocrystals has been realized owing to the development of composite film technology. Here, we demonstrated the fabrication of green and red emissive CuInS2 nanocrystals embedded polymer composite films of equal thickness by using a precise solution casting method. The impacts of polymer molecular weight on the dispersibility of CuInS2 nanocrystals were then systematically studied through evaluating the decrease in transmittance and red shift of emission wavelength. The composite films made from PMMA of small molecular weights exhibited higher transmittance. Applications of these green and red emissive composite films as color converters in remote-type light-emitting devices were further demonstrated.

Funder

Special Basic Cooperative Research Programs of Yunnan Provincial Undergraduate Universities’ Association

the Program of Gems and Materials Technology Engineering Research Center of Yunnan Provincial Universities

Publisher

MDPI AG

Subject

General Materials Science,General Chemical Engineering

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