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Proceedings Paper

Fabrication and characterization of ZnO nanowire structure on flexible substrate with different solution molarities
Author(s): Kyu-Hang Lee; Shin Hur; Wan-Doo Kim; Hongsoo Choi
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Paper Abstract

Zinc Oxide nanostructures are capable of applying numerous applications such as optoelectronics, sensors, varistors, and electronic devices. There are several techniques to gorw ZnO nanostructures, including vapor-liquid-solid method, chemical vapor deposition, physical vapor deposition, metal organic chemical vapor deposition and solution process. Recently reported solution method is a simple way to grow ZnO nanowires at a low temperature. One distinctive advantage with the solution method is low processing temperature so that flexible polymer materials can be used as a substrate to grow ZnO nanowires. In this study, ZnO nanowires have been fabricated on PET film by solution method with various molarities to see the effect of different molarities on ZnO nanowire growth. The solution temperature was 80°C and ZnO nanowires were grown for 6 hours for each case. The ZnO seed layer was sputtered at room temperature for 33 min. prior to ZnO nanowire growth. These ZnO nanowires were characterized by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), and photoluminescence (PL) measurements at room temperature using a He-Cd 325-nm laser as the excitation source. We also measured the current using current Atomic Force Microscopy (I-AFM) and presented the possibility to use ZnO nanowires as a power source for micro/nano scale devices. As a result, we found that the characterization of ZnO nanowires changes according to the solution molarity.

Paper Details

Date Published: 27 August 2010
PDF: 8 pages
Proc. SPIE 7764, Nanoengineering: Fabrication, Properties, Optics, and Devices VII, 77640Y (27 August 2010); doi: 10.1117/12.863917
Show Author Affiliations
Kyu-Hang Lee, Korea Institute of Machinery & Materials (Korea, Republic of)
Shin Hur, Korea Institute of Machinery & Materials (Korea, Republic of)
Wan-Doo Kim, Korea Institute of Machinery & Materials (Korea, Republic of)
Hongsoo Choi, Korea Institute of Machinery & Materials (Korea, Republic of)

Published in SPIE Proceedings Vol. 7764:
Nanoengineering: Fabrication, Properties, Optics, and Devices VII
Elizabeth A. Dobisz; Louay A. Eldada, Editor(s)

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