Infrared spectroscopy may deliver important information on defects created in CdTe monocrystals grown from Cd and Te components purified in a hydrogen atmosphere before the crystallization process. Reflectivity spectra on different CdTe samples were collected with a FTIR spectrometer using a standard Hg lamp and the IR synchrotron radiation source of the DAFNE synchrotron facility at Frascati. In the 500-2000 cm(-1) frequency region, the characteristic vibrational spectra of oxygen and hydrogen bounded to Cd and Te in the monocrystalline CdTe were observed. Moreover the rich fine structure around the CdTe phonon frequency range has been resolved and the preliminary assignment of several lines has been performed. (c) 2005 WILEY-VCH Verlag GmbH I Co. KGaA, Weinheim.
Vibrational spectra of hydrogenated CdTe / J., Polit; A., Kisiel; A., Mycielski; A., Marcelli; E., Sheregii; J., Cebulski; M., Piccinini; M., Cestelli Guidi; B. V., Robouch; Nucara, Alessandro. - In: PHYSICA STATUS SOLIDI C. - ISSN 1610-1634. - 2:3(2005), pp. 1147-1154. (Intervento presentato al convegno Symposium on Science and Technology of Nitrides and Related Materials/Wide Band Gap II-VI Semiconductors held at the E-MRS 2004 Fall Meeting tenutosi a Warsaw, POLAND nel SEP 06-10, 2004) [10.1002/pssc.200460666].
Vibrational spectra of hydrogenated CdTe
NUCARA, Alessandro
2005
Abstract
Infrared spectroscopy may deliver important information on defects created in CdTe monocrystals grown from Cd and Te components purified in a hydrogen atmosphere before the crystallization process. Reflectivity spectra on different CdTe samples were collected with a FTIR spectrometer using a standard Hg lamp and the IR synchrotron radiation source of the DAFNE synchrotron facility at Frascati. In the 500-2000 cm(-1) frequency region, the characteristic vibrational spectra of oxygen and hydrogen bounded to Cd and Te in the monocrystalline CdTe were observed. Moreover the rich fine structure around the CdTe phonon frequency range has been resolved and the preliminary assignment of several lines has been performed. (c) 2005 WILEY-VCH Verlag GmbH I Co. KGaA, Weinheim.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
