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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.
關鍵字: light-emitting-diodes;gallium nitride nanorods;gan
Project: Nanotechnology
期刊/報告no:: Nanotechnology, Volume 18, Issue 33.
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.
ISSN: 0957-4484
DOI: 10.1088/0957-4484/18/33/335706
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