About: High temperature optical absorption edge of CdTe single crystal

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1063/1.4895494
Description	The optical absorption edge of bulk CdTe single crystal was measured by infrared transmission under saturated Cd pressure in the temperature interval 295-1223 K. The absorption coefficient was directly determined up to the value of 100 cm(-1). For higher values, it was estimated by extrapolating the spectra according to the Urbach exponential rule. It was observed that the common temperature-independent intersection of extrapolated Urbach absorption edge, the %22Urbach focus,%22 does not exist in CdTe. The temperature dependence of band-gap energy E-g defined by E-g(300 K) = 1.518 eV and dE(g)/dT = - 4.4 x 10(-4) eV/K was established, postulating linear temperature dependence of E-g by fitting the temperature dependent absorption coefficient at the band edge alpha(g)(T) = 6600 - 4T (K) (cm(-1)). The optical absorption edge of bulk CdTe single crystal was measured by infrared transmission under saturated Cd pressure in the temperature interval 295-1223 K. The absorption coefficient was directly determined up to the value of 100 cm(-1). For higher values, it was estimated by extrapolating the spectra according to the Urbach exponential rule. It was observed that the common temperature-independent intersection of extrapolated Urbach absorption edge, the %22Urbach focus,%22 does not exist in CdTe. The temperature dependence of band-gap energy E-g defined by E-g(300 K) = 1.518 eV and dE(g)/dT = - 4.4 x 10(-4) eV/K was established, postulating linear temperature dependence of E-g by fitting the temperature dependent absorption coefficient at the band edge alpha(g)(T) = 6600 - 4T (K) (cm(-1)). (en)
Title	High temperature optical absorption edge of CdTe single crystal High temperature optical absorption edge of CdTe single crystal (en)
skos:prefLabel	High temperature optical absorption edge of CdTe single crystal High temperature optical absorption edge of CdTe single crystal (en)
skos:notation	RIV/00216208:11320/14:10288359!RIV15-MSM-11320___
http://linked.open...avai/riv/aktivita	I P S
http://linked.open...avai/riv/aktivity	I, P(GA13-13671S), P(TE01020445), S
http://linked.open...iv/cisloPeriodika	10
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Šedivý, Lukáš Grill, Roman Hlídek, Pavel Belas, Eduard Uxa, Štěpán Bugár, Marek
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	19101
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/14:10288359
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	cdte; semiconductors; infrared absorption dependence; energy-gap; cadmium telluride (en)
http://linked.open.../riv/klicoveSlovo	energy-gap infrared absorption dependence cadmium telluride cdte semiconductors
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[3240FB4EB875]
http://linked.open...i/riv/nazevZdroje	Journal of Applied Physics
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	6 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	X-ray detectors for high photon fluxes Radiation and nuclear safety technologies development center: RANUS - TD
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	116
http://linked.open...iv/tvurceVysledku	Belas, Eduard Grill, Roman Hlídek, Pavel Uxa, Štěpán Bugár, Marek Šedivý, Lukáš
http://linked.open...ain/vavai/riv/wos	000342833700033
issn	0021-8979
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1063/1.4895494
http://localhost/t...ganizacniJednotka	11320

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