Jump to main content
Jump to site search

Issue 6, 2020
Previous Article Next Article

Bright and fast-response perovskite light-emitting diodes with an ICBA:modified-C60 nanocomposite electrical confinement layer

Author affiliations

Abstract

Bright and fast-response CH3NH3PbBr3 perovskite light-emitting diodes (PeLEDs) are realized by using ICBA:modified C60 (MC60) nanocomposites as the hole blocking layer (HBL) and electron transport layer (ETL). The photoluminescence spectrum shows that the use of hydrophilic MC60 in the ETL helps the surface passivation of the perovskite layer. In addition, the photoelectron spectra and water-droplet contact angle images show that the use of the ICBA:MC60 nanocomposite ETL can simultaneously confine the electrons and holes in the perovskite layer, which boosts the injected electron–hole radiative recombination efficiency and thereby increases the electroluminescence from 1 cd m−2 to 2080 cd m−2 at 6 V when the ICBA:3,5OEC60 nanocomposite ETL is used. In addition, the operational frequency of the optimal PeLED is up to 1.5 MHz.

Graphical abstract: Bright and fast-response perovskite light-emitting diodes with an ICBA:modified-C60 nanocomposite electrical confinement layer

Back to tab navigation

Supplementary files

Article information


Submitted
03 Dec 2019
Accepted
10 Jan 2020
First published
13 Jan 2020

Nanoscale, 2020,12, 4061-4068
Article type
Paper

Bright and fast-response perovskite light-emitting diodes with an ICBA:modified-C60 nanocomposite electrical confinement layer

C. Tsai, Y. Lu, S. Chiang, C. Yu, H. Cheng, C. Hsu, K. Y. Chiu and S. H. Chang, Nanoscale, 2020, 12, 4061
DOI: 10.1039/C9NR10246A

Social activity

Search articles by author

Spotlight

Advertisements