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November 13-15, 2017 | Las Vegas, USA
14th International Conference and Exhibition on
Materials Science and Engineering
RRJOMS | Volume 5 | Issue 7 | November, 2017
Characterizations of ZnO nanorods and ZnO/ZnS core/shell nanorods on copper grids
Yu-Shan Lee, Chen-Hao Hung and Hsiang Chen
National Chi Nan University, Taiwan
Zinc oxide is a n-type semiconductor which has wide and a direct band gap of 3.37ev with large exciton binding energy of 60meV.
In addition, ZnO is also accessible material, which has many applications, such as transductors, gas sensors, and optical devices.
However, zinc oxide has large band gap, which contributes to the efficiency of photovoltaic devices. Thus, we incorporate ZnS into
ZnO structures because zinc sulfide is able to modulate band gap. In this study, we electroplate the ZnO seed layer to cover on
the copper grid as the first step. Secondly, we adopt the hydrothermal method to grow the ZnO nanorods, and then prepare the
solution of zinc sulfide to do the hydrothermal method for the second time. In order to characterize the material properties, several
analytical methods such as FESEM, TEM, PL and so forth have been conducted. The TEM images indicate that ZnO nanorods are
completely covered by ZnS layer. The Photoluminescence (PL) analysis illustrates that this nanocomposite materials contain good
optical property. In this research, to conduct the TEM analyze directly, we attempt to fabricate ZnO/ZnS core/shell nanostructure on
the copper grid. This paper provides a simple three-step process to synthesize ZnO/ZnS core/shell nanostructure and also affords a
possibility to apply to optical sensor, solar cell, gas sensor and so on.
Biography
Yu-Shan Lee is a graduate student at National Chi Nan University from Taiwan and her research focus is on nano-materials. She has researched methods of growing
nanorods on different substrates since she was a collage student. Owing to improvements of material properties of nanostructures novel fabrication of nanostructures may
advance device technology, such as senor, panel, semiconductor and so on. In addition, she would like to acknowledge more academic researches by attending this con-
ference. It is possible to inspire her to do more in depth investigation.
Yu-Shan Lee et al., Res. Rev. J Mat. Sci. 2017, 5:7
DOI: 10.4172/2321-6212-C1-012