A Novel AC technique for high quality porous GaN
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Electrochemical Science Group (ESG)
2014
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my.unimap-340542014-04-25T09:26:56Z A Novel AC technique for high quality porous GaN Ainorkhilah, Mahmood Naser Mahmoud, Ahmed, Dr. Yuhamdan, Yusof Yam, Fong Kwong, Dr. Chuah, Lee Siang, Dr. Husnen R., Abd Zainuriah, Hassan ainor_khilah@yahoo.com.my naser@usm.my yamfk@usm.my husnen78@yahoo.com zai@usm.my Alternating current photo-assisted electrochemical etching (ACPEC) Photoluminescence Porous GaN Raman Spectroscopy Scanning Electron Microscopy (SEM) Link to publisher's homepage at http://www.electrochemsci.org In this paper, we report the formation of porous GaN films under a novel alternatingcurrent (sine-wave a.c. (50 Hz)) photo-assisted electrochemical etching (ACPEC) conditions. The ac formed porous GaN with excellent structural and optical properties. Field emission scanning electron microscope (FESEM) micrographs indicated that the shapes of the pores are high quality hexagonal like and nano-building structures. The porous layer exhibited a substantial photoluminescence (PL) intensity enhancement with red-shifted band-edge PL peaks associated with the relaxation of compressive stress. The shift of E2(high) to the lower frequency in Raman spectra of the porous GaN films further confirms such a stress relaxation. 2014-04-25T09:26:56Z 2014-04-25T09:26:56Z 2013-04 Article International Journal of Electrochemical Science, vol. 8(4), 2013, pages 5801-5809 1452-3981 http://www.electrochemsci.org/list13.htm#issue4 http://dspace.unimap.edu.my:80/dspace/handle/123456789/34054 en Electrochemical Science Group (ESG) |
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English |
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Alternating current photo-assisted electrochemical etching (ACPEC) Photoluminescence Porous GaN Raman Spectroscopy Scanning Electron Microscopy (SEM) |
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Alternating current photo-assisted electrochemical etching (ACPEC) Photoluminescence Porous GaN Raman Spectroscopy Scanning Electron Microscopy (SEM) Ainorkhilah, Mahmood Naser Mahmoud, Ahmed, Dr. Yuhamdan, Yusof Yam, Fong Kwong, Dr. Chuah, Lee Siang, Dr. Husnen R., Abd Zainuriah, Hassan A Novel AC technique for high quality porous GaN |
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Link to publisher's homepage at http://www.electrochemsci.org |
| author2 |
ainor_khilah@yahoo.com.my |
| author_facet |
ainor_khilah@yahoo.com.my Ainorkhilah, Mahmood Naser Mahmoud, Ahmed, Dr. Yuhamdan, Yusof Yam, Fong Kwong, Dr. Chuah, Lee Siang, Dr. Husnen R., Abd Zainuriah, Hassan |
| format |
Article |
| author |
Ainorkhilah, Mahmood Naser Mahmoud, Ahmed, Dr. Yuhamdan, Yusof Yam, Fong Kwong, Dr. Chuah, Lee Siang, Dr. Husnen R., Abd Zainuriah, Hassan |
| author_sort |
Ainorkhilah, Mahmood |
| title |
A Novel AC technique for high quality porous GaN |
| title_short |
A Novel AC technique for high quality porous GaN |
| title_full |
A Novel AC technique for high quality porous GaN |
| title_fullStr |
A Novel AC technique for high quality porous GaN |
| title_full_unstemmed |
A Novel AC technique for high quality porous GaN |
| title_sort |
novel ac technique for high quality porous gan |
| publisher |
Electrochemical Science Group (ESG) |
| publishDate |
2014 |
| url |
http://dspace.unimap.edu.my:80/dspace/handle/123456789/34054 |
| _version_ |
1643797384673624064 |
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13.222552 |