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Proceedings Paper

Scanning photoluminescence microscopy on GaAs/AlGaAs single quantum wire at room temperature
Author(s): Z.F. Li; Wei Lu; Xingquan Liu; Shuechu Shen; Ying Fu; Magnus Willander; Hark Hoe Tan; Chennupati Jagadish
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Paper Abstract

The micro-photoluminescence ((mu) -PL) scanning has been performed on a GaAs/AlGaAs single V-grooved quantum wire (QWR) along the direction perpendicular to the wire. The variation of (mu) -PL spectra in different spatial positions with different quantum structures have been observed. In the region of QWR the PL spectra contain the peaks from QWR, necking quantum well and vertical quantum well while in that of about 1 micrometers leaving away from the QWR the PL spectra show only the peaks from side-wall quantum well and top quantum well. All the acquired spectra have been fitted by Gaussian line shape and the different PL components are decomposed. The intensity variation with the spatial position directly demonstrates the origin of the PL correlated to the different quantum structures. The PL energy for the each quantum structures has been precisely determined.

Paper Details

Date Published: 29 November 2000
PDF: 4 pages
Proc. SPIE 4086, Fourth International Conference on Thin Film Physics and Applications, (29 November 2000); doi: 10.1117/12.408429
Show Author Affiliations
Z.F. Li, Shanghai Institute of Technical Physics (China)
Wei Lu, Shanghai Institute of Technical Physics (China)
Xingquan Liu, Shanghai Institute of Technical Physics (China)
Shuechu Shen, Shanghai Institute of Technical Physics (China)
Ying Fu, Univ. of Goteburg and Chalmers Univ. of Technology (Sweden)
Magnus Willander, Univ. of Goteburg and Chalmers Univ. of Technology (Sweden)
Hark Hoe Tan, Australian National Univ. (Australia)
Chennupati Jagadish, Australian National Univ. (Australia)


Published in SPIE Proceedings Vol. 4086:
Fourth International Conference on Thin Film Physics and Applications
Junhao Chu; Pulin Liu; Yong Chang, Editor(s)

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