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Tailoring the Size and Shape of ZnO Nanoparticles for Enhanced Performance of OLED Device.

ABSTRACT: We synthesized zinc oxide nanoparticles (ZnO NPs) by meticulously controlling both temperature and reaction times, allowing us to fine-tune their crystalline properties, morphology, and particle dimensions. This analysis confirmed the existence of a mixture of rod and sphere shapes (ZnO-I), including rod-shaped NPs with an average size of 14.8 nm × 5.2 nm and spherical NPs with an average diameter of 5.27 nm. We subsequently incorporated these synthesized ZnO NPs into organic light-emitting diode (OLED) devices for red, green, and blue colors, utilizing them as the electron injection layer through a solution-based process. The green OLED device using ZnO-I exhibited a promising current efficiency of 4.02 cd/A and an external quantum efficiency of 1.47%.

SUBMITTER: Khairnar N

PROVIDER: S-EPMC10647275 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature

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Tailoring the Size and Shape of ZnO Nanoparticles for Enhanced Performance of OLED Device.

Khairnar Nikita N Kwon Hyukmin H Park Sangwook S Lee Hayoon H Park Jongwook J

Nanomaterials (Basel, Switzerland) 20231024 21

We synthesized zinc oxide nanoparticles (ZnO NPs) by meticulously controlling both temperature and reaction times, allowing us to fine-tune their crystalline properties, morphology, and particle dimensions. This analysis confirmed the existence of a mixture of rod and sphere shapes (ZnO-I), including rod-shaped NPs with an average size of 14.8 nm × 5.2 nm and spherical NPs with an average diameter of 5.27 nm. We subsequently incorporated these synthesized ZnO NPs into organic light-emitting diod ...[more]

PMID: 37947662

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