Competitive capture of photoexcited carriers in a novel step-graded InX(Al0.17Ga0.83)1-XAs quantum well heterostructure

T. Tadakuma; S. Machida; A. Satake; K. Fujiwara; J.R. Folkenberg; Jørn Märcher Hvam

Competitive capture of photoexcited carriers in a novel step-graded In_X(Al_0.17Ga_0.83)_1-XAs quantum well heterostructure

T. Tadakuma, S. Machida, A. Satake, K. Fujiwara, J.R. Folkenberg, Jørn Märcher Hvam

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

Photolumiscence (PL) and PL excitation (PLE) spectra of a novel step-graded strained In_x(Al_0.17Ga_0.83)_1-xAs/Al_0.17Ga_0.83As multiple-quantum-well heterostructure consisting of five quantum wells with different x values have been investigated. Under indirect barrier excitation conditions a strongly nonuniform PL intensity distribution is observed between the five different wells, while no such difference in PL intensity is found by direct well excitation. PL enhancement and reduction observed for the different wells at the barrier band edge excitation are explained in terms of competitive capture of carriers from the barrier into the five wells.

Original language	English
Title of host publication	Conference Proceedings, 2004 International Conference on Indium Phosphide and Related Materials
Publication date	2004
Pages	257-260
ISBN (Print)	07-80-38595-0
Publication status	Published - 2004
Event	16th International Conference on Indium Phosphide and Related Materials - Kagoshima, Japan Duration: 31 May 2004 → 4 Jun 2004 Conference number: 16 http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=9837

Conference

Conference	16th International Conference on Indium Phosphide and Related Materials
Number	16
Country/Territory	Japan
City	Kagoshima
Period	31/05/2004 → 04/06/2004
Internet address	http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=9837

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@inproceedings{1d60777de8914009b59aafd49c01bc02,

title = "Competitive capture of photoexcited carriers in a novel step-graded InX(Al0.17Ga0.83)1-XAs quantum well heterostructure",

abstract = "Photolumiscence (PL) and PL excitation (PLE) spectra of a novel step-graded strained Inx(Al0.17Ga0.83)1-xAs/Al0.17Ga0.83As multiple-quantum-well heterostructure consisting of five quantum wells with different x values have been investigated. Under indirect barrier excitation conditions a strongly nonuniform PL intensity distribution is observed between the five different wells, while no such difference in PL intensity is found by direct well excitation. PL enhancement and reduction observed for the different wells at the barrier band edge excitation are explained in terms of competitive capture of carriers from the barrier into the five wells.",

author = "T. Tadakuma and S. Machida and A. Satake and K. Fujiwara and J.R. Folkenberg and Hvam, {J{\o}rn M{\"a}rcher}",

year = "2004",

language = "English",

isbn = "07-80-38595-0",

pages = "257--260",

booktitle = "Conference Proceedings, 2004 International Conference on Indium Phosphide and Related Materials",

note = "16th International Conference on Indium Phosphide and Related Materials, IPRM ; Conference date: 31-05-2004 Through 04-06-2004",

url = "http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=9837",

}

Tadakuma, T, Machida, S, Satake, A, Fujiwara, K, Folkenberg, JR & Hvam, JM 2004, Competitive capture of photoexcited carriers in a novel step-graded In_X(Al_0.17Ga_0.83)_1-XAs quantum well heterostructure. in Conference Proceedings, 2004 International Conference on Indium Phosphide and Related Materials. pp. 257-260, 16th International Conference on Indium Phosphide and Related Materials, Kagoshima, Japan, 31/05/2004.

Competitive capture of photoexcited carriers in a novel step-graded In_X(Al_0.17Ga_0.83)_1-XAs quantum well heterostructure. / Tadakuma, T.; Machida, S.; Satake, A. et al.
Conference Proceedings, 2004 International Conference on Indium Phosphide and Related Materials. 2004. p. 257-260.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

TY - GEN

T1 - Competitive capture of photoexcited carriers in a novel step-graded InX(Al0.17Ga0.83)1-XAs quantum well heterostructure

AU - Tadakuma, T.

AU - Machida, S.

AU - Satake, A.

AU - Fujiwara, K.

AU - Folkenberg, J.R.

AU - Hvam, Jørn Märcher

N1 - Conference code: 16

PY - 2004

Y1 - 2004

N2 - Photolumiscence (PL) and PL excitation (PLE) spectra of a novel step-graded strained Inx(Al0.17Ga0.83)1-xAs/Al0.17Ga0.83As multiple-quantum-well heterostructure consisting of five quantum wells with different x values have been investigated. Under indirect barrier excitation conditions a strongly nonuniform PL intensity distribution is observed between the five different wells, while no such difference in PL intensity is found by direct well excitation. PL enhancement and reduction observed for the different wells at the barrier band edge excitation are explained in terms of competitive capture of carriers from the barrier into the five wells.

AB - Photolumiscence (PL) and PL excitation (PLE) spectra of a novel step-graded strained Inx(Al0.17Ga0.83)1-xAs/Al0.17Ga0.83As multiple-quantum-well heterostructure consisting of five quantum wells with different x values have been investigated. Under indirect barrier excitation conditions a strongly nonuniform PL intensity distribution is observed between the five different wells, while no such difference in PL intensity is found by direct well excitation. PL enhancement and reduction observed for the different wells at the barrier band edge excitation are explained in terms of competitive capture of carriers from the barrier into the five wells.

M3 - Article in proceedings

SN - 07-80-38595-0

SP - 257

EP - 260

BT - Conference Proceedings, 2004 International Conference on Indium Phosphide and Related Materials

T2 - 16th International Conference on Indium Phosphide and Related Materials

Y2 - 31 May 2004 through 4 June 2004