Encapsulated MAPbBr3 in nickel oxide nanotubes and their electroluminescence

Roberto Gonzalez-Rodriguez; Evan Hathaway; Yuankun Lin; Jeffery L Coffer; Jingbiao Cui

doi:10.1039/d2nr00019a

Encapsulated MAPbBr₃ in nickel oxide nanotubes and their electroluminescence

Nanoscale. 2022 May 5;14(17):6417-6424. doi: 10.1039/d2nr00019a.

Authors

Roberto Gonzalez-Rodriguez¹, Evan Hathaway¹, Yuankun Lin¹, Jeffery L Coffer², Jingbiao Cui¹

Affiliations

¹ Department of Physics, University of North Texas, Denton, Texas, 76203, USA. jingbiao.cui@unt.edu.
² Department of Chemistry and Biochemistry, Texas Christian University, TCU Box 298860, Fort Worth, Texas, 76129, USA.

PMID: 35416223
DOI: 10.1039/d2nr00019a

Abstract

Metal halide perovskites have emerged as the next generation of light emitting semiconducting materials due to their excellent properties such as tunable bandgaps, high photoluminescence quantum yield, and high color purity. Nickel oxide is a hole transport material that has been used in planar light emitting diodes (LEDs). In this paper, we develop a novel method for the large scale fabrication of metal halide perovskite nanowire arrays encapsulated inside nickel oxide nanotubes. We study the structural and spectral properties of these infiltrated perovskites nanowires and, to the best of our knowledge, for the first time report on a working LED device consisting of perovskites encapsulated inside nickel oxide nanotubes. Finally, we study the photoluminescence and electroluminescence of an LED with MAPbBr₃ inside nickel oxide nanotubes and obtain an outstanding current efficiency of 5.99 Cd A^-1 and external quantum efficiency of 3.9% for the LED device.