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Improved hole injection for blue phosphorescent organic light-emitting diodes using solution deposited tin oxide nano-particles decorated ITO anodes.

ABSTRACT: Blue phosphorescent organic light-emitting diodes (PHOLEDs) were fabricated with tin oxide (SnOx) nano-particles (NPs) deposited at the ITO anode to improve their electrical and optical performances. SnOx NPs helped ITO to increase the work function enhancing hole injection capability. Charge balance of the device was achieved using p- and n-type mixed host materials in emissive layer and the devices' luminance and maximum external quantum efficiency (EQE) increased about nearly 30%. Tuning the work function using solution processed NPs allows rapid optimization of device efficiency.

SUBMITTER: Il Lee S

PROVIDER: S-EPMC6382941 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature

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Improved hole injection for blue phosphorescent organic light-emitting diodes using solution deposited tin oxide nano-particles decorated ITO anodes.

Il Lee Seung S Yun Geum Jae GJ Kim Jin Wook JW Hanta Gregory G Liang Kunyu K Kojvic Lazar L Hui Lok Shu LS Turak Ayse A Kim Woo Young WY

Scientific reports 20190220 1

Blue phosphorescent organic light-emitting diodes (PHOLEDs) were fabricated with tin oxide (SnO<sub>x</sub>) nano-particles (NPs) deposited at the ITO anode to improve their electrical and optical performances. SnO<sub>x</sub> NPs helped ITO to increase the work function enhancing hole injection capability. Charge balance of the device was achieved using p- and n-type mixed host materials in emissive layer and the devices' luminance and maximum external quantum efficiency (EQE) increased about n ...[more]

PMID: 30787366

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