Enhancement of UV photoluminescence in ZnO tubes grown by metal organic chemical vapour deposition (MOCVD)

Iwan, S.1; Zhao, J. L.2; Tan, S. T.3; Sun, X. W.4

2018-09

10.1016/j.vacuum.2018.06.035

VACUUM   影响因子和分区

0042-207X

We have synthesized ZnO tubes, without any catalyst, on Al2O3 (001) substrates by metal organic chemical vapor deposition (MOCVD) at different growth temperatures, pressures and Zn-O ratios. The results confirm that the growth temperature, reactor pressure and Zn-O ratio play important roles in the formation of hexagonal ZnO tubes. Scanning electron microscopy (SEM) images indicated that, at a growth temperature of 500 degrees C, reactor pressure of 75 Torr and Zn-O ratio of 10/75 are an appropriate condition to obtain hexagonal and well-aligned ZnO tubes. High-resolution, double crystal XRD analysis shows a symmetric omega-scan rocking curve, with a full width at half maximum (FWHM) of 1.1 degrees. It confirms the ZnO tubes have highly c-axis orientation on Al2O3 substrate. Subsequently, room temperature photoluminescence (PL) studies confirm that the enhancement of UV emissions from ZnO tubes is due to increasing Zn-O ratios.

ZnO tubes MOCVD Growth temperature Reactor pressure Zn-O ratio

SCI ; EI

英语

其他

Shenzhen Innovation Project[JCYJ20160301113356947] ; Shenzhen Innovation Project[JCYJ20160301113537474]

Materials Science ; Physics

Materials Science, Multidisciplinary ; Physics, Applied

WOS:000445440800058

PERGAMON-ELSEVIER SCIENCE LTD

20182505354466

Alumina ; Aluminum oxide ; Growth temperature ; II-VI semiconductors ; Industrial chemicals ; Metallorganic chemical vapor deposition ; Organic chemicals ; Organometallics ; Photoluminescence ; Scanning electron microscopy ; Substrates ; Zinc oxide

Pipe, Piping and Pipelines:619.1 ; Light/Optics:741.1 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804

MATERIALS SCIENCE

Web of Science

1.FMIPA Univ Negeri Jakarta, Program Studi Fisika, Jalan Rawamangun Muka, Jakarta Timur 13220, Indonesia
2.NanoArc Technol Pte Ltd, Singapore 389730, Singapore
3.Nanyang Technol Univ, Sch Elect & Elect Engn, Nanyang Ave, Singapore 639798, Singapore
4.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Guangdong, Peoples R China

Iwan, S.,Zhao, J. L.,Tan, S. T.,et al. Enhancement of UV photoluminescence in ZnO tubes grown by metal organic chemical vapour deposition (MOCVD)[J]. VACUUM,2018,155:408-411.

Iwan, S.,Zhao, J. L.,Tan, S. T.,&Sun, X. W..(2018).Enhancement of UV photoluminescence in ZnO tubes grown by metal organic chemical vapour deposition (MOCVD).VACUUM,155,408-411.

Iwan, S.,et al."Enhancement of UV photoluminescence in ZnO tubes grown by metal organic chemical vapour deposition (MOCVD)".VACUUM 155(2018):408-411.