DEMONSTRATION OF QUANTUM CONFINEMENT IN INSB-IN1-XALXSB MULTIQUANTUM WELLS USING PHOTOLUMINESCENCE SPECTROSCOPY

Authors
SAKER MK WHITTAKER DM SKOLNICK MS MCCONVILLE CF WHITEHOUSE CR BARNETT SJ PITT AD CULLIS AG WILLIAMS GM
Citation
Mk. Saker et al., DEMONSTRATION OF QUANTUM CONFINEMENT IN INSB-IN1-XALXSB MULTIQUANTUM WELLS USING PHOTOLUMINESCENCE SPECTROSCOPY, Applied physics letters, 65(9), 1994, pp. 1118-1120
Citations number
16
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
65
Issue
9
Year of publication
1994
Pages
1118 - 1120
Database
ISI
SICI code
0003-6951(1994)65:9<1118:DOQCII>2.0.ZU;2-R
Abstract
We report the observation of quantum confinement, using photoluminesce nce, in InSb-In1-xAlxSb (0.08 less-than-or-equal-to x less-than-or-equ al-to 0.23) multiquantum well samples grown by molecular beam epitaxy. A series of samples were studied with different well widths and varyi ng concentration of aluminum in the barriers. The upshifted luminescen ce energies behave qualitatively as expected due to changes in confine ment, and are in good quantitative agreement with calculated upshifts taking into account strain in the barriers. These results demonstrate that good quality heterostructures can be obtained in this material sy stem and show its potential for device applications.