Multi-section core-shell InGaN/GaN quantumwell nanorod light-emitting diode array

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Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/107843

Title:	Multi-section core-shell InGaN/GaN quantumwell nanorod light-emitting diode array
Authors:	姚毓峰;Tu, Charng-Gan;Yao, Yu-Feng;Liao, Che-Hao;Su, Chia-Ying;Hsieh, Chieh;Weng, Chi-Ming;Lin, Chun-Han;Chen, Hao-Tsung;Kiang, Yean-Woei;Yang, C. C.
Contributors:	資訊電機學院電機工程學系
Date:	2015-08-24
Issue Date:	2026-04-23 14:27:00 (UTC+8)
Publisher:	The Optical Society;United States: Optica Publishing Group
Abstract:	摘要： The growth of a two-section, core-shell, InGaN/GaN quantum-well (QW) nanorod- (NR-) array light-emitting diode device based on a pulsed growth technique with metalorganic chemical vapor deposition is demonstrated. A two-section n-GaN NR is grown through a tapering process for forming two uniform NR sections of different cross-sectional sizes. The cathodoluminescence (CL), photoluminescence (PL), and electrolumines-cence (EL) characterization results of the two-section NR structure are compared with those of a single-section NR sample, which is prepared under the similar condition to that for the first uniform NR section of the two-section sample. All the CL, PL, and EL spectra of the two-section sample (peaked between 520 and 525 nm) are red-shifted from those of the single-section sample (peaked around 490 nm) by >30 nm in wavelength. Also, the emitted spectral widths of the two-section sample become significantly larger than their counterparts of the single-section sample. The PL spectral full-width at half-maximum increases from ~37 to ~61 nm. Such variations are attributed to the higher indium incorporation in the sidewall QWs of the two-section sample due to the stronger strain relaxation in an NR section of a smaller cross-sectional size and the more constituent atom supply from the larger gap volume between neighboring NRs. 其他題名： Opt Express 出版者： United States: Optica Publishing Group 出版日期： 2015-08-24 出處： Optics Express, 2015-08, Vol.23 (17), p.21919- 資源來源： Optica 識別號： ISSN: 1094-4087 識別號： EISSN: 1094-4087 識別號： DOI: 10.1364/oe.23.021919 識別號： PMID: 26368168
Appears in Collections:	[Department of Electrical Engineering] journal & Dissertation

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