Optical properties of In0.3Ga0.7N/GaN green emission nanorods fabricated by plasma etching

C. H. Chiu, M. H. Lo, C. F. Lai, T. C. Lu, H. W. Huang, Y. A. Chang, T. H. Hsueh, C. C. Yu, H. C. Kuo, S. C. Wang, C. F. Lin, Y. K. Kuo

Research output: Contribution to journalArticle

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Abstract

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.

Original languageEnglish
Article number335706
JournalNanotechnology
Volume18
Issue number33
DOIs
Publication statusPublished - 2007 Aug 22

Fingerprint

Plasma etching
Nanorods
Optical properties
Surface structure
Photoluminescence
Multiple scattering

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

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. / Optical properties of In0.3Ga0.7N/GaN green emission nanorods fabricated by plasma etching. In: Nanotechnology. 2007 ; Vol. 18, No. 33.
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abstract = "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.",
author = "Chiu, {C. H.} and Lo, {M. H.} and Lai, {C. F.} and Lu, {T. C.} and Huang, {H. W.} and Chang, {Y. A.} and Hsueh, {T. H.} and Yu, {C. C.} and Kuo, {H. C.} and Wang, {S. C.} and Lin, {C. F.} and Kuo, {Y. K.}",
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Chiu, CH, Lo, MH, Lai, CF, Lu, TC, Huang, HW, Chang, YA, Hsueh, TH, Yu, CC, Kuo, HC, Wang, SC, Lin, CF & Kuo, YK 2007, 'Optical properties of In0.3Ga0.7N/GaN green emission nanorods fabricated by plasma etching', Nanotechnology, vol. 18, no. 33, 335706. https://doi.org/10.1088/0957-4484/18/33/335706

Optical properties of In0.3Ga0.7N/GaN green emission nanorods fabricated by plasma etching. / 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.

In: Nanotechnology, Vol. 18, No. 33, 335706, 22.08.2007.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Optical properties of In0.3Ga0.7N/GaN green emission nanorods fabricated by plasma etching

AU - Chiu, C. H.

AU - Lo, M. H.

AU - Lai, C. F.

AU - Lu, T. C.

AU - Huang, H. W.

AU - Chang, Y. A.

AU - Hsueh, T. H.

AU - Yu, C. C.

AU - Kuo, H. C.

AU - Wang, S. C.

AU - Lin, C. F.

AU - Kuo, Y. K.

PY - 2007/8/22

Y1 - 2007/8/22

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AB - 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.

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