Next Article in Journal
Executed Movement Using EEG Signals through a Naive Bayes Classifier
Next Article in Special Issue
Fabrication of Micro/Nano Structures on Metals by Femtosecond Laser Micromachining
Previous Article in Journal
Effect of Laser Power on the Quality of Drilled Micro Hole Using Cu50Zr50 Amorphous Alloys Foils
Previous Article in Special Issue
Fabrication and Testing of an Osmotic Pressure Sensor for Glucose Sensing Application
Article Menu

Export Article

Open AccessArticle
Micromachines 2014, 5(4), 1069-1081;

Growth of Ultra-Long ZnO Microtubes Using a Modified Vapor-Solid Setup

Department of Mechanical and Aerospace Engineering, University of Texas, Arlington, TX 76019, USA
Author to whom correspondence should be addressed.
Received: 27 August 2014 / Revised: 4 November 2014 / Accepted: 6 November 2014 / Published: 11 November 2014
(This article belongs to the Special Issue Micro/Nano Fabrication)
View Full-Text   |   Download PDF [3820 KB, uploaded 11 November 2014]   |  


In this work, we have modified the experimental setup for a vapor-solid (VS) process to synthesize Zinc oxide (ZnO) microtubes (MTs) with lengths up to 3 mm during a 90-min growth period. The critical idea behind this modification is to control the distribution of Zn vapor along the Si substrates. The morphology evolution of ZnO structures with the increasing reaction time was particularly explored. We found that, within the 90-min growth period, four different types of ZnO microstructures appeared in this synthesis process: microrods (MRs), short MTs, two-tier structures, and long MTs. Growth mechanisms were proposed to interpret the formation of these structures. View Full-Text
Keywords: ZnO; microtubes; vapor-solid process ZnO; microtubes; vapor-solid process

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Lu, Z.; Heng, X.; Chakraborty, A.; Luo, C. Growth of Ultra-Long ZnO Microtubes Using a Modified Vapor-Solid Setup. Micromachines 2014, 5, 1069-1081.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Micromachines EISSN 2072-666X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top