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Proceedings Paper

Growth of wide bandgap II-VI alloys on InP substrates by molecular beam epitaxy
Author(s): Maria C. Tamargo; Ning Dai; Abdullah Cavus; Rhonda Dzakpasu; Wojciech Krystek; Fred H. Pollak; Alph Fred Semendy; Neal Bambha; Phillip R. Boyd; Dah-Min D. Hwang; C. Y. Chen
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Paper Abstract

We have grown high quality lattice-matched ZnCdSe and ZnSeTe on InP. To optimize the interfaces, the initial growth temperature was lowered and an As flux was used during the thermal treatment of InP substrates prior to epitaxial growth. Under optimized condition, 2D nucleation was observed by reflection high energy electron diffraction (RHEED) throughout the entire growth. Photoluminescence (PL), photoreflectance (PR), transmission electron microscopy (TEM) were used to carry out the sample characterization. Low temperature PL spectra for ZnCdSe show a narrow excitonic emission. PR spectra from ZnCdSe samples also suggest very high quality layers. The ZnSeTe exhibits a strong defect level emission at energy close to band gap and very weak deep level emission. TEM study suggest that the interfaces are comparable to those obtained between ZnSe and GaAs. These results, combined with the new possibilities from these materials, make InP an attractive substrate for II-VI epitaxy.

Paper Details

Date Published: 21 December 1994
PDF: 10 pages
Proc. SPIE 2346, II-VI Blue/Green Laser Diodes, (21 December 1994); doi: 10.1117/12.197267
Show Author Affiliations
Maria C. Tamargo, CUNY/City College (United States)
Ning Dai, CUNY/City College (United States)
Abdullah Cavus, CUNY/City College (United States)
Rhonda Dzakpasu, CUNY/City College (United States)
Wojciech Krystek, CUNY/Brooklyn College (United States)
Fred H. Pollak, CUNY/Brooklyn College (United States)
Alph Fred Semendy, Army Research Lab. (United States)
Neal Bambha, Army Research Lab. (United States)
Phillip R. Boyd, Army Research Lab. (United States)
Dah-Min D. Hwang, Bellcore (United States)
C. Y. Chen, Bellcore (United States)

Published in SPIE Proceedings Vol. 2346:
II-VI Blue/Green Laser Diodes
Robert L. Gunshor; Arto V. Nurmikko, Editor(s)

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