Enhancement of luminous efficacy of polymer light-emitting diodes with silver-nanoparticles by oxygen-plasma treatment

Sy-Hann Chen; Yi-Wen Hong; Yuan-Fong Chou Chau; Hung Ji Huang; Hai-Pang Chiang

doi:10.1002/jemt.24324

Enhancement of luminous efficacy of polymer light-emitting diodes with silver-nanoparticles by oxygen-plasma treatment

Microsc Res Tech. 2023 Jun;86(6):725-730. doi: 10.1002/jemt.24324. Epub 2023 Apr 18.

Authors

Sy-Hann Chen¹, Yi-Wen Hong¹, Yuan-Fong Chou Chau², Hung Ji Huang³, Hai-Pang Chiang⁴

Affiliations

¹ Department of Electrophysics, National Chiayi University, Chiayi, Taiwan.
² Centre for Advanced Material and Energy Sciences, Universiti Brunei Darussalam, Brunei.
³ Department of Electro-Optical Engineering, National Formosa University, Yunlin, Taiwan.
⁴ Department of Optoelectronics and Materials Technology, National Taiwan Ocean University, Keelung, Taiwan.

PMID: 37070728
DOI: 10.1002/jemt.24324

Abstract

Silver-nanoparticles deposited on indium tin oxide (AgNPs/ITO) with different O₂ -plasma treatment times are used as the anode window substrate for polymer light-emitting diodes (PLED). When AgNPs/ITO with an O₂ -plasma treatment time of 10 min is used for PLED, a maximum current efficiency of 3.33 cd/A is realized, which is notably higher than that of a reference PLED (1.00 cd/A). Compared to those of the reference PLED, the mean current efficiency and electroluminescence intensity of the optimal PLED are enhanced by 3.24 times and 480%, respectively. O₂ -plasma treatment is an easy method for optimizing the localized surface plasmon resonance effect of metal nanoparticles, exhibiting advantages of scalable mass production and high suitability for applications in related optoelectronic components.

Keywords: localized surface plasmon resonance; oxygen-plasma treatment; polymer light-emitting diode; silver-nanoparticles.

Grants and funding

Ministry of Science and Technology, Taiwan