On the origin of the 1-eV band in photoluminescence from Cd1−x Zn x Te
作者： V. E. Sedov , O. A. Matveev , A. I. Terent’ev , N. K. Zelenina
DOI: 10.1134/S1063782607090059
关键词:
摘要: Photoluminescence (PL) at 77 K from Cd1−xZnxTe samples (x = 0, 0.005 and 0.01) annealed 900°C cadmium vapor pressure PCd 3 × 104−2 105 Pa has been studied. It was found that the contribution of 1-eV band to spectrum-integrated PL these is independent PCd, in contrast Cd0.95Zn0.05Te which this increases up ∼90% as grows. The not shifted shorter wavelengths x becomes larger. conclusion Zn vacancies are involved formation properties confirmed. attributed capture free holes acceptor levels related both zinc. These closely spaced and, therefore, difficult resolve.
springer.com
harvard.edu
osti.gov
sci-hub.se 参考文章(7)
W. Stadler, D. M. Hofmann, H. C. Alt, T. Muschik, B. K. Meyer, E. Weigel, G. Müller-Vogt, M. Salk, E. Rupp, K. W. Benz, Optical investigations of defects in Cd1-xZnxTe. Physical Review B. ,vol. 51, pp. 10619- 10630 ,(1995) , 10.1103/PHYSREVB.51.10619
G. Mandel, F. F. Morehead, P. R. Wagner, Self-Compensation-Limited Conductivity in Binary Semiconductors. III. Expected Correlations With Fundamental Parameters Physical Review. ,vol. 136, pp. A826- A832 ,(1964) , 10.1103/PHYSREV.136.A826
J. L. Reno, E. D. Jones, Determination of the dependence of the band-gap energy on composition for Cd1-xZnxTe. Physical Review B. ,vol. 45, pp. 1440- 1442 ,(1992) , 10.1103/PHYSREVB.45.1440
M. R. Lorenz, B. Segall, H. H. Woodbury, Some Properties of a Double Acceptor Center in CdTe Physical Review. ,vol. 134, pp. 751- 760 ,(1964) , 10.1103/PHYSREV.134.A751
O.A. Matveev, A.I. Terentev, V.P. Karpenko, N.K. Zelenina, A. Fauler, M. Fiederle, K.W. Benz, CdZnTe:Cl Crystals for X‐Ray Computer Tomography Detectors Physica Status Solidi B-basic Solid State Physics. ,vol. 229, pp. 1073- 1076 ,(2002) , 10.1002/1521-3951(200201)229:2<1073::AID-PSSB1073>3.0.CO;2-3
R. S. Title, G. Mandel, F. F. Morehead, Self-Compensation-Limited Conductivity in Binary Semiconductors. II.n-ZnTe Physical Review. ,vol. 136, pp. A300- A302 ,(1964) , 10.1103/PHYSREV.136.A300
M.R. Lorenz, B. Segall, Shallow and deep acceptor states in CdTe Physics Letters. ,vol. 7, pp. 18- 20 ,(1963) , 10.1016/0031-9163(63)90423-2