Sol-gel-derived zinc oxide nanoparticles for electroluminescence enhancement of MEH-PPV OLEDs

Sarjidan, M. A. Mohd and Rosli, A. K. and Zaini, M. S. and Nordin, M. A. and Hafiz, S. M. and Abd Majid, W. H. (2023) Sol-gel-derived zinc oxide nanoparticles for electroluminescence enhancement of MEH-PPV OLEDs. Molecular Crystals and Liquid Crystals, 758 (1). pp. 71-79. ISSN 1542-1406, DOI https://doi.org/10.1080/15421406.2022.2152630.

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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.

Item Type: Article
Funders: Ministry of Education, Malaysia (FRGS/1/2019/STG02/UM/01/2), Universiti Malaya under the Impact-oriented Interdisciplinary Research Grant (IIRG) (IIRG007B-19FNW)
Uncontrolled Keywords: Nanoparticles; OLED; PL; UV-VIS; XRD; ZnO
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Science > Department of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 16 Jul 2025 03:52
Last Modified: 16 Jul 2025 03:52
URI: http://eprints.um.edu.my/id/eprint/50997

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