Optimization of high-quality vertically aligned ZnO rod arrays by the response surface methodology
2015 (English)In: Journal of Alloys and Compounds, ISSN 0925-8388, Vol. 626, 180-188 p.Article in journal (Refereed) Published
Optimization of the deposition parameters was conducted by the response surface methodology to synthesize high-quality ZnO rod arrays with a high texture coefficient, a large aspect ratio and a narrow bandgap. In addition, mathematical models based on statistical analysis were also developed to predict the texture coefficient, aspect ratio and bandgap of the ZnO rod arrays. With the optimized parameters, all of the three involved responses obtained the desired optimum values. The results show that the texture coefficient can be elevated up to a value of 0.998, which represents an almost perfect value. Moreover, wide range of aspect ratios was obtained for various applications and the obtained maximum value of 21.3 is relatively high value by wet chemical method, especially when no capping agent and no refreshing growth solution in a nearly neutral solution is used.
Place, publisher, year, edition, pages
2015. Vol. 626, 180-188 p.
ZnO rod arrays, Optimization, Response surface methodology
Metallurgy and Metallic Materials
IdentifiersURN: urn:nbn:se:kth:diva-159606DOI: 10.1016/j.jallcom.2014.11.166ISI: 000348025400028ScopusID: 2-s2.0-84919675078OAI: oai:DiVA.org:kth-159606DiVA: diva2:787400
QC 201502102015-02-102015-02-052015-09-03Bibliographically approved