Observation of optical transition energy in ZnSe/tris(8-hydroxyquinoline) aluminum (Alq3)/ZnSe single quantum wells by photoreflectance spectroscopy

Nukeaw, J.; Upprakhot, K.; Rahong, S.; Tunhoo, B.; Yindeesuk, W.

doi:10.1016/j.physe.2003.11.181

Observation of optical transition energy in ZnSe/tris(8-hydroxyquinoline) aluminum (Alq3)/ZnSe single quantum wells by photoreflectance spectroscopy

Author(s)

Upprakhot, K.

Date Issued

March 1, 2004

Type

Conference Paper

DOI

10.1016/j.physe.2003.11.181

Abstract

The optical transition energy in ZnSe/tris(8-hydroxyquinoline) aluminum (Alq3)/ZnSe single quantum wells (SQW) thin films with well thickness from 5 to 50 nm was investigated by room-temperature photoreflectance (PR) measurements. PR features due to optical transition energy were observed in the SQWs of well thicknesses. The transition energies were determined by fitting the PR spectra to the theoretical line-shape expression. The transition energy decreased with increasing well thickness. © 2003 Elsevier B.V. All rights reserved.

Citation

Physica E Low Dimensional Systems and Nanostructures, 21(2-4), 1070-1073, 2004

Subjects

Alq3

Photoreflectance

Single quantum wells

ZnSe