Growth of wide bandgap II-VI alloys on InP substrates by molecular beam epitaxy

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

doi:10.1117/12.197267

21 December 1994 Growth of wide bandgap II-VI alloys on InP substrates by molecular beam epitaxy

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

Author Affiliations +

Proceedings Volume 2346, II-VI Blue/Green Laser Diodes; (1994) https://doi.org/10.1117/12.197267
Event: Photonics for Industrial Applications, 1994, Boston, MA, United States

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.

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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, and C. Y. Chen "Growth of wide bandgap II-VI alloys on InP substrates by molecular beam epitaxy", Proc. SPIE 2346, II-VI Blue/Green Laser Diodes, (21 December 1994); https://doi.org/10.1117/12.197267

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