Fabrication and excitation-power-density-dependent micro-photoluminescence of hexagonal nanopillars with a single ingaas/gaas quantum well | |
Yang, L.1; Motohisa, J.2,3; Tomioka, K.2,3; Takeda, J.2,3; Fukui, T.2,3; geng, M. M.1; Jia, L. X.1; Zhang, L.1; Liu, Y. L.1 | |
刊名 | Nanotechnology
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2008-07-09 | |
卷号 | 19期号:27页码:7 |
ISSN号 | 0957-4484 |
DOI | 10.1088/0957-4484/19/27/275304 |
通讯作者 | Yang, l.(lyang@semi.ac.cn) |
英文摘要 | Hexagonal nanopillars with a single ingaas/gaas quantum well (qw) were fabricated on a gaas (111) b substrate by selective-area metal-organic vapor phase epitaxy. the standard deviations in diameter and height of the nanopillars are about 2% and 5%, respectively. zincblende structure and rotation twins were identified in both the gaas and the ingaas layers by electron diffraction. the excitation-power-density-dependent micro-photoluminescence (mu-pl) of the nanopillars was measured at 4.2, 50, 100 and 150 k. it was shown that, with increasing excitation power density, the mu-pl peak's positions shift to a higher energy, and their intensity and width increase, which were rationalized using a model that includes the effects of piezoelectricity, photon-screening and band-filling. it was also revealed that the rotation twins significantly reduce the diffusion length of the carriers in the nanopillars, compared to that in the regular semiconductors. |
WOS关键词 | INTERNAL ELECTRIC-FIELDS ; OPTICAL-PROPERTIES ; EPITAXIAL-GROWTH ; BUILDING-BLOCKS ; (111)B SURFACES ; NANOWIRES ; INTENSITY ; DEVICES ; GAAS |
WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Physics |
WOS类目 | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000256456000007 |
内容类型 | 期刊论文 |
URI标识 | http://www.corc.org.cn/handle/1471x/2427289 |
专题 | 半导体研究所 |
通讯作者 | Yang, L. |
作者单位 | 1.Chinese Acad Sci, Inst Semicond, Lab Optoelect Syst, Beijing 100083, Peoples R China 2.Hokkaido Univ, RCIQE, Sapporo, Hokkaido 0608628, Japan 3.Hokkaido Univ, Grad Sch Elect & Informat Engn, Sapporo, Hokkaido 0608628, Japan |
推荐引用方式 GB/T 7714 | Yang, L.,Motohisa, J.,Tomioka, K.,et al. Fabrication and excitation-power-density-dependent micro-photoluminescence of hexagonal nanopillars with a single ingaas/gaas quantum well[J]. Nanotechnology,2008,19(27):7. |
APA | Yang, L..,Motohisa, J..,Tomioka, K..,Takeda, J..,Fukui, T..,...&Liu, Y. L..(2008).Fabrication and excitation-power-density-dependent micro-photoluminescence of hexagonal nanopillars with a single ingaas/gaas quantum well.Nanotechnology,19(27),7. |
MLA | Yang, L.,et al."Fabrication and excitation-power-density-dependent micro-photoluminescence of hexagonal nanopillars with a single ingaas/gaas quantum well".Nanotechnology 19.27(2008):7. |
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