Transparent conductive oxide films mixed with gallium oxide nanoparticle/single-walled carbon nanotube layer for deep ultraviolet light-emitting diodes
- Authors
- Kim, Kyoeng Heon; An, Ho-Myoung; Kim, Hee-Dong; Kim, Tae Geun
- Issue Date
- 2-12월-2013
- Publisher
- SPRINGEROPEN
- Keywords
- Gallium oxide (Ga2O3) nanoparticles (NPs); Single-walled carbon nanotubes (SWNTs); Ultraviolet transparent conductive oxide (UV TCO)
- Citation
- NANOSCALE RESEARCH LETTERS, v.8
- Indexed
- SCIE
SCOPUS
- Journal Title
- NANOSCALE RESEARCH LETTERS
- Volume
- 8
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/101321
- DOI
- 10.1186/1556-276X-8-507
- ISSN
- 1931-7573
- Abstract
- We propose a transparent conductive oxide electrode scheme of gallium oxide nanoparticle mixed with a single-walled carbon nanotube (Ga2O3 NP/SWNT) layer for deep ultraviolet light-emitting diodes using spin and dipping methods. We investigated the electrical, optical and morphological properties of the Ga2O3 NP/SWNT layers by increasing the thickness of SWNTs via multiple dipping processes. Compared with the undoped Ga2O3 films (current level 9.9 x 10(-9) A @ 1 V, transmittance 68% @ 280 nm), the current level flowing in the Ga2O3 NP/SWNT increased by approximately 4 x 10(5) times and the transmittance improved by 9% after 15 times dip-coating (current level 4 x 10(-4) A at 1 V; transmittance 77.0% at 280 nm). These improvements result from both native high transparency of Ga2O3 NPs and high conductivity and effective current spreading of SWNTs.
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Collections - College of Engineering > School of Electrical Engineering > 1. Journal Articles
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