標題: Optical properties of In0.3Ga0.7N/GaN green emission nanorods fabricated by plasma etching
作者: Chiu, C. H.
Lo, M. H.
Lai, C. F.
Lu, T. C.
Huang, H. W.
Chang, Y. A.
Hsueh, T. H.
Yu, C. C.
Kuo, H. C.
Wang, S. C.
Lin, C. F.
Kuo, Y. K.
光電工程學系
Department of Photonics
公開日期: 22-Aug-2007
摘要: In this study, we have fabricated In0.3Ga0.7N/GaN green emission nanorods and demonstrated optical enhancement by photoluminescence (PL) measurements. An enhancement factor of 3.5 and an emission peak blue-shift of 6.6 nm were observed at 300 K for the green emission nanorods structure in comparison to the as-grown flat surface structure. The blue-shift phenomenon from the nanorod structure could be caused by a partial reduction of the internal piezoelectric field. However, the similar carrier decay time for the green emission nanorod structure and the as-grown flat surface structure observed in low-temperature time-resolved PL measurements indicates that the dominant optical enhancement mechanism of the green emission nanorod structure could be mainly resulting from the large emission surface areas and the multiple scattering paths between the nanorods.
URI: http://dx.doi.org/10.1088/0957-4484/18/33/335706
http://hdl.handle.net/11536/10421
ISSN: 0957-4484
DOI: 10.1088/0957-4484/18/33/335706
期刊: NANOTECHNOLOGY
Volume: 18
Issue: 33
結束頁: 
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