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Title: Enhanced field emission properties from well-aligned zinc oxide nanoneedles grown on the Au/Ti/n-Si substrate

Abstract

The authors investigated the field emission from vertically well-aligned zinc oxide (ZnO) nanoneedles grown on the Au/Ti/n-Si (100) substrate using metal organic chemical vapor deposition. The turn-on field of ZnO nanoneedles was about 0.85 V/{mu}m at the current density of 0.1 {mu}A/cm{sup 2}, and the emission current density of 1 mA/cm{sup 2} was achieved at the applied electric field of 5.0 V/{mu}m. The low turn-on field of the ZnO nanoneedles was attributed to very sharp tip morphology, and the high emission current density was mainly caused by the formation of the stable Ohmic contact between the ZnO nanoneedles and Au film.

Authors:
; ; ; ;  [1];  [2];  [2]
  1. Division of Materials Science and Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-ku, Seoul 133-791 (Korea, Republic of)
  2. (Korea, Republic of)
Publication Date:
OSTI Identifier:
20971850
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 90; Journal Issue: 8; Other Information: DOI: 10.1063/1.2643979; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CHEMICAL VAPOR DEPOSITION; CRYSTAL GROWTH; CURRENT DENSITY; ELECTRIC FIELDS; FIELD EMISSION; GOLD; MOLECULAR BEAM EPITAXY; MORPHOLOGY; NANOSTRUCTURES; SEMICONDUCTOR MATERIALS; SILICON; SUBSTRATES; THIN FILMS; TITANIUM; ZINC OXIDES

Citation Formats

Park, Chan Jun, Choi, Duck-Kyun, Yoo, Jinkyoung, Yi, Gyu-Chul, Lee, Cheol Jin, National CRI Center for Semiconductor Nanorods and Department of Materials Science and Engineering, POSTECH, Pohang, Gyeongbuk 790-784, and School of Electrical Engineering, Korea University, Seoul 136-701. Enhanced field emission properties from well-aligned zinc oxide nanoneedles grown on the Au/Ti/n-Si substrate. United States: N. p., 2007. Web. doi:10.1063/1.2643979.
Park, Chan Jun, Choi, Duck-Kyun, Yoo, Jinkyoung, Yi, Gyu-Chul, Lee, Cheol Jin, National CRI Center for Semiconductor Nanorods and Department of Materials Science and Engineering, POSTECH, Pohang, Gyeongbuk 790-784, & School of Electrical Engineering, Korea University, Seoul 136-701. Enhanced field emission properties from well-aligned zinc oxide nanoneedles grown on the Au/Ti/n-Si substrate. United States. doi:10.1063/1.2643979.
Park, Chan Jun, Choi, Duck-Kyun, Yoo, Jinkyoung, Yi, Gyu-Chul, Lee, Cheol Jin, National CRI Center for Semiconductor Nanorods and Department of Materials Science and Engineering, POSTECH, Pohang, Gyeongbuk 790-784, and School of Electrical Engineering, Korea University, Seoul 136-701. Mon . "Enhanced field emission properties from well-aligned zinc oxide nanoneedles grown on the Au/Ti/n-Si substrate". United States. doi:10.1063/1.2643979.
@article{osti_20971850,
title = {Enhanced field emission properties from well-aligned zinc oxide nanoneedles grown on the Au/Ti/n-Si substrate},
author = {Park, Chan Jun and Choi, Duck-Kyun and Yoo, Jinkyoung and Yi, Gyu-Chul and Lee, Cheol Jin and National CRI Center for Semiconductor Nanorods and Department of Materials Science and Engineering, POSTECH, Pohang, Gyeongbuk 790-784 and School of Electrical Engineering, Korea University, Seoul 136-701},
abstractNote = {The authors investigated the field emission from vertically well-aligned zinc oxide (ZnO) nanoneedles grown on the Au/Ti/n-Si (100) substrate using metal organic chemical vapor deposition. The turn-on field of ZnO nanoneedles was about 0.85 V/{mu}m at the current density of 0.1 {mu}A/cm{sup 2}, and the emission current density of 1 mA/cm{sup 2} was achieved at the applied electric field of 5.0 V/{mu}m. The low turn-on field of the ZnO nanoneedles was attributed to very sharp tip morphology, and the high emission current density was mainly caused by the formation of the stable Ohmic contact between the ZnO nanoneedles and Au film.},
doi = {10.1063/1.2643979},
journal = {Applied Physics Letters},
number = 8,
volume = 90,
place = {United States},
year = {Mon Feb 19 00:00:00 EST 2007},
month = {Mon Feb 19 00:00:00 EST 2007}
}