Photoluminescence characterization of PbTe/CdTe quantum dots grown by lattice-type mismatched epitaxy
作者： Kazuto Koike , Hisashi Harada , Tomoyuki Itakura , Mitsuaki Yano , Wolfgang Heiss
DOI: 10.1016/J.JCRYSGRO.2006.11.115
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摘要: Abstract This paper describes molecular beam epitaxial growth and photoluminescence (PL) properties of PbTe quantum wells (QWs) dots (QDs) in CdTe matrix. Cross-sectional observation by atomic force microscopy (AFM) high-resolution transmission electron (HRTEM) revealed that the epitaxy mode on CdTe(1 0 0) turned from a conventional two-dimensional (2D) QW-growth at 220 °C to highly isotropic QD-growth 280 °C minimizing interface energy between rocksalt zincblende CdTe. Although both QWs QDs can emit mid-infrared PL, emission was much stronger observed even higher temperatures over 400 K. Below 120 K, however, this intense became low due band-alignment change type-I type-II thermal mismatch
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sci-hub.se 参考文章(12)
Manfred Helm, None, Long wavelength infrared emitters based on quantum wells and superlattices Gordon & Breach Science Pub.. ,(2000)
M.V. Valeiko, I.I. Zasavitskii, A.V. Matveenko, B.N. Matsonashvili, Z.A. Rukhadze, Quantum-size and deformation effects in and structures Superlattices and Microstructures. ,vol. 9, pp. 195- 201 ,(1991) , 10.1016/0749-6036(91)90282-V
Luiz G. Ferreira, Deformation Potentials of Lead Telluride Physical Review. ,vol. 137, pp. A1601- A1609 ,(1965) , 10.1103/PHYSREV.137.A1601
X L Huang, Z Labadi, A Hammiche, A Krier, Growth of self-assembled PbSe quantum-dots on GaSb(100) by liquid phase epitaxy. . Journal of Physics D. ,vol. 35, pp. 3091- 3095 ,(2002) , 10.1088/0022-3727/35/23/309
A. B. Preobrajenski, K. Barucki, T. Chassé, Exploiting the difference in lattice structures for formation of self-assembled PbS dots on InP(110) Physical Review Letters. ,vol. 85, pp. 4337- 4340 ,(2000) , 10.1103/PHYSREVLETT.85.4337
Kazuto Koike, Takashi Tanaka, Shuwei Li, Mitsuaki Yano, High-quality CdTe growth in the (100)-orientation on (100)-GaAs substrates by molecular beam epitaxy Journal of Crystal Growth. ,vol. 227, pp. 671- 676 ,(2001) , 10.1016/S0022-0248(01)00800-4
Mitsuaki Yano, Isao Makabe, Kazuto Koike, Photoluminescence characterized thermal mismatch of PbTe/CdTe single quantum wells grown on GaAs substrates Physica E-low-dimensional Systems & Nanostructures. ,vol. 20, pp. 449- 452 ,(2004) , 10.1016/J.PHYSE.2003.08.055
H. Preier, Recent advances in lead-chalcogenide diode lasers Applied physics. ,vol. 20, pp. 189- 206 ,(1979) , 10.1007/BF00886018
D.L. Partin, Lead salt quantum effect structures IEEE Journal of Quantum Electronics. ,vol. 24, pp. 1716- 1726 ,(1988) , 10.1109/3.7102
M. Böberl, W. Heiss, T. Schwarzl, K. Wiesauer, G. Springholz, Midinfrared continuous-wave photoluminescence of lead–salt structures up to temperatures of 190 °C Applied Physics Letters. ,vol. 82, pp. 4065- 4067 ,(2003) , 10.1063/1.1582370