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

Abstract

AbstractSilver‐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.