Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 112, Issue 6, Pages 1920-1924Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp077160i
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Funding
- National Research Foundation of Korea [과C6B1910] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Engineering of ZnO film texture with controlled crystal orientation has been realized by employing a solvent effect via a facile solution growth method. By increasing the ethanol content in aqueous/ethanolic solution, the crystal orientation is tuned from perpendicular to almost parallel to the substrate surface. ZnO film texture is further engineered by a secondary growth in the solution. A secondary growth of oriented nanorod arrays in the 50% ethanol solution leads to the coalescence of discrete nanorods throughout the whole film surface and transformation of discrete nanorod arrays into dense film. The dense ZnO films obtained exhibit a strong sharp UV luminescence and a weak broad green-yellow emission, demonstrating high-quality ZnO films can be grown by a low-temperature solution-phase approach.
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