Effect of the surface states on photoluminescence from surface quantum wells

Y. D. Glinka; T. V. Shahbazyan; H. O. Everitt; J. Roberts; P. Rajagopal; J. Cook; E. Piner; K. Linthicum

doi:10.1209/0295-5075/87/47007

All issues

Volume 87 / No 4 (August 2009)

EPL, 87 4 (2009) 47007

Abstract

Free Access

This article has a note: [https://doi.org/10.1209/0295-5075/90/10000]

Issue		EPL Volume 87, Number 4, August 2009


Article Number		47007
Number of page(s)		6
Section		Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties
DOI		https://doi.org/10.1209/0295-5075/87/47007
Published online		08 September 2009

EPL, 87 (2009) 47007

Retracted Article

Effect of the surface states on photoluminescence from surface $\chem{GaN/Al_{0.2}Ga_{0.8}N}$ quantum wells

Y. D. Glinka¹^,2, T. V. Shahbazyan³, H. O. Everitt²^,4, J. Roberts⁵, P. Rajagopal⁵, J. Cook⁵, E. Piner⁵ and K. Linthicum⁵

¹ Institute of Physics, National Academy of Sciences of Ukraine - Kiev, 03028, Ukraine
² U. S. Army Aviation and Missile RDEC - Redstone Arsenal, AL 35898, USA
³ Department of Physics, Jackson State University - Jackson, MS 39217, USA
⁴ Department of Physics, Duke University - Durham, NC 27708, USA
⁵ Nitronex Corporation - Raleigh, NC 27703, USA

Corresponding author: glinka@icnanotox.org

Abstract

We report on photoluminescence (PL) measurements at 85 K for ${\rm GaN}/{\rm Al}_{0.2}{\rm Ga}_{0.8}{\rm N}$ surface quantum wells (SQWs) with a width in the range of 1.51–2.9 nm. The PL spectra show a redshift with decreasing SQW width, in contrast to the blueshift normally observed for conventional GaN QWs of the same width. The effect is attributed to a strong coupling of SQW confined exciton states with surface acceptors. The PL hence originates from the recombination of surface-acceptor-bound ( $A^{0}_{s}X_{A}$ ) excitons. Two types of acceptors were identified.

PACS: 78.55.-m – Photoluminescence, properties and materials

This paper has been formally withdrawn on ethical grounds because the names of Drs Everitt, Roberts, Rajagopal and Cook were included in the author list without their having any knowledge or discussion of the content of the article, nor having given permission for it to be submitted, nor having given approval for inclusion of their names as co-authors.

EPL submission policy states quite clearly that: "If several persons are listed as authors, the corresponding author takes full responsibility that the co-authors agree with the submission and further processing of the manuscript."

© EPLA, 2009

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