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Using an Al reaction layer to control the morphology and optical properties of ZnO nanorods and nanowalls.
- Source :
-
Materials Letters . May2016, Vol. 171, p195-199. 5p. - Publication Year :
- 2016
-
Abstract
- This paper reports a novel method for the synthesis of ZnO nanorods, nanowalls, and nanorod/wall structures directly on a substrate, using a simple chemical bath deposition process. The morphology of the resulting structures can be altered simply by adjusting the thickness of an Al thin film, which is used as a doping source. Transmission electron microscopy (TEM) and selected area electron diffraction (SAED) measurements revealed that the resulting ZnO formations possess a wurtzite structure. Inductively coupled plasma mass spectrometry (ICP-MS) revealed that the Al doping of the nanostructures is between 2.1 at% and 4.9 at%. The predominance of violet-blue emissions in the CL spectra of Al-doped and undoped ZnO indicates the presence of interstitial zinc (Zn i ) and zinc vacancies (V Zn ). In this study, the work function was adjusted between 3.81 and 4.39 eV simply by varying the thickness of the Al reaction source. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0167577X
- Volume :
- 171
- Database :
- Academic Search Index
- Journal :
- Materials Letters
- Publication Type :
- Academic Journal
- Accession number :
- 113868011
- Full Text :
- https://doi.org/10.1016/j.matlet.2016.02.083