Single crystalline ZnO radial homojunction light-emitting diodes fabricated by metalorganic chemical vapour deposition
- Authors
- Yoo, Jinkyoung; Ahmed, Towfiq; Tang, Wei; Kim, Yong-Jin; Hong, Young Joon; Lee, Chul-Ho; Yi, Gyu-Chul
- Issue Date
- 27-9월-2017
- Publisher
- IOP PUBLISHING LTD
- Keywords
- ZnO; radial junction; light-emitting diode; p-type; phosphorous
- Citation
- NANOTECHNOLOGY, v.28, no.39
- Indexed
- SCIE
SCOPUS
- Journal Title
- NANOTECHNOLOGY
- Volume
- 28
- Number
- 39
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/82191
- DOI
- 10.1088/1361-6528/aa7ec5
- ISSN
- 0957-4484
- Abstract
- ZnO radial p-n junction architecture has the potential for forward-leap of light-emitting diode (LED) technology in terms of higher efficacy and economical production. We report on ZnO radial p-n junction-based light emitting diodes prepared by full metalorganic chemical vapour deposition (MOCVD) with hydrogen-assisted p-type doping approach. The p-type ZnO(P) thin films were prepared by MOCVD with the precursors of dimethylzinc, tert-butanol, and tertiarybutylphosphine. Controlling the precursor flow for dopant results in the systematic change of doping concentration, Hall mobility, and electrical conductivity. Moreover, the approach of hydrogen-assisted phosphorous doping in ZnO expands the understanding of doping behaviour in ZnO. Ultraviolet and visible electroluminescence of ZnO radial p-n junction was demonstrated through a combination of position-controlled nano/microwire and crystalline p-type ZnO(P) radial shell growth on the wires. The reported research opens a pathway of realisation of production-compatible ZnO p-n junction LEDs.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - Graduate School > KU-KIST Graduate School of Converging Science and Technology > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.