White Light-Emitting Devices Based on Inorganic Perovskite and Organic Materials

Shuming Chen; Chen Chen; Cong Bao; Muhammad Mujahid; Ye Li; Ping Chen; Yu Duan

doi:10.3390/molecules24040800

Molecules (Feb 2019)

White Light-Emitting Devices Based on Inorganic Perovskite and Organic Materials

Shuming Chen,
Chen Chen,
Cong Bao,
Muhammad Mujahid,
Ye Li,
Ping Chen,
Yu Duan

Affiliations

Shuming Chen: College of Science, Changchun University of Science and Technology, Changchun 130012, China
Chen Chen: State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
Cong Bao: State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
Muhammad Mujahid: State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
Ye Li: College of Science, Changchun University of Science and Technology, Changchun 130012, China
Ping Chen: State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
Yu Duan: College of Science, Changchun University of Science and Technology, Changchun 130012, China

DOI: https://doi.org/10.3390/molecules24040800
Journal volume & issue: Vol. 24, no. 4
p. 800

Abstract

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Perovskite-based materials have attracted considerable attention in photoelectric devices. In this paper, we report the one-step fabrication of spin-coated CsPbBr2.5I0.5 perovskite films doped with PAN (polyacrylonitrile) polymer. A red perovskite LED (PeLED) composite film was fabricated which featured a maximum luminance value of 657 cd/m2 at 8 V. We fabricated white PeLEDs by combining hole transporting layer material emission, perovskite⁻polymer composite material PAN:CsPbBr2.5I0.5, and pure inorganic perovskite CsPbBr3 as a luminescent layer. The maximum luminance of the device was 360 cd/m2 at 7 V, and the color coordinate was (0.31, 0.36). We obtained an ideal white light-emitting device that paves the way for further development of white PeLEDs.

Published in Molecules

ISSN: 1420-3049 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Organic chemistry
Website: http://www.mdpi.com/journal/molecules

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