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

Perovskite-based materials have attracted considerable attention in photoelectric devices. In this paper, we report the one-step fabrication of spin-coated CsPbBr(2.5)I(0.5) perovskite films doped with PAN (polyacrylonitrile) polymer. A red perovskite LED (PeLED) composite film was fabricated which...

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Detalles Bibliográficos
Autores principales: Chen, Shuming, Chen, Chen, Bao, Cong, Mujahid, Muhammad, Li, Ye, Chen, Ping, Duan, Yu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6412383/
https://www.ncbi.nlm.nih.gov/pubmed/30813341
http://dx.doi.org/10.3390/molecules24040800
Descripción
Sumario:Perovskite-based materials have attracted considerable attention in photoelectric devices. In this paper, we report the one-step fabrication of spin-coated CsPbBr(2.5)I(0.5) 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/m(2) at 8 V. We fabricated white PeLEDs by combining hole transporting layer material emission, perovskite–polymer composite material PAN:CsPbBr(2.5)I(0.5), and pure inorganic perovskite CsPbBr(3) as a luminescent layer. The maximum luminance of the device was 360 cd/m(2) 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.

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