Sol-gel-derived zinc oxide nanoparticles for electroluminescence enhancement of MEH-PPV OLEDs
Document Type
Article
Publication Date
6-1-2023
Abstract
The work aims to evaluate the impact of zinc oxide nanoparticles (ZnO-NPs) in the electroluminescence enhancement of organic light-emitting diodes (OLEDs). ZnO-NP was synthesized by using the sol-gel method. XRD, optical, and photoluminescence analysis indicate the average crystallite size of the ZnO-NP is 8.19 nm, exhibits a high energy band gap of 4.15 eV, and high luminescence at 530 nm. OLED performance analysis revealed that the ZnO-NP significantly improves the luminescence brightness and device efficiency by acting as an electron transport and hole-blocking layer, which promotes a high number of electron-hole accumulation in the emissive layer.
Keywords
Nanoparticles, OLED, PL, UV-VIS, XRD, ZnO
Divisions
PHYSICS
Funders
Ministry of Education, Malaysia (FRGS/1/2019/STG02/UM/01/2),Universiti Malaya under the Impact-oriented Interdisciplinary Research Grant (IIRG) (IIRG007B-19FNW)
Publication Title
Molecular Crystals and Liquid Crystals
Volume
758
Issue
1
Publisher
Taylor & Francis
Publisher Location
2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND