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Pal, U ; Fernández Sánchez, Paloma ; Piqueras de Noriega, Javier ; Sochinskii, N. V. ; Dieguez, E. | Amer Inst Physics | 1995-08-01Cathodoluminescence (CL) microscopic techniques have been used to study the spatial distribution of structural defects and the deep levels in CdTe:Ge bulk crystals. The effect of Ge doping with concentrations of 10(17) and 10(19) cm(-3) on the c[...]texto impreso
Aceves, R. ; Perez Sala, R. ; Barboza Flores, M. ; Pal, U ; Zaldivar, M.H. ; Piqueras de Noriega, Javier | Taylor & Francis Ltd | 2001Spectral cathodoluminescence of KCl:EU2+ (0.2% wt) crystals has been measured at different temperatures. In the 80-300 K temperature range the luminescence consists of three main broad emission bands with maxima around 418, 452, and 619nm. Based[...]texto impreso
Pal, U ; Piqueras de Noriega, Javier ; Dutta, P. S. ; Bhat, H. L. ; Dubey, G. C. ; Kumar, V. ; Dieguez, E. | Materials Research Soc | 1996texto impreso
The contactless modulation spectroscopy technique of photoreflectance (PR) has been used to study the near band edge transitions in CdTe, CdTe:V and CdTe:Ge bulk crystals in the range of 14 and 400 K for the first time. The lineshape of the PR[...]
