Far infrared transmission and structure of Pb---Ge---S semiconducting glasses

dc.contributor.author	Bhatia, K L
dc.contributor.author	Katyal, S C
dc.contributor.author	Venugopalan, S
dc.date.accessioned	2008-02-05T05:58:22Z
dc.date.available	2008-02-05T05:58:22Z
dc.date.issued	1979
dc.description	Restricted Access.	en
dc.description.abstract	Lead sulfide has been found to form stable glasses with GeS2 in the presence of GeS. Far-infrared transmission spectra of the glassy compositions x = 0.46, 0.23 and 0.115 in the pseudoternary (PbS)x (GeS2)0.70−x (GeS)0.30 and of the stoichiometric crystalline composition Pb2GeS4 have been observed for the first time. The results indicate a two optical mode behaviour of the compounds. The presence of the heavy lead atom in the Ge---S network seems to appreciably affect the bond bending modes of the GeS4 molecular unit without significantly disturbing its bond stretching vibrations. The presence of S3Ge---GeS3 molecular units in the amorphous compositions and their absence in Pb2GeS4 are indicated.	en
dc.format.extent	257651 bytes
dc.format.mimetype	application/pdf
dc.identifier.citation	Journal of Non-Crystalline Solids, 1979, Vol.31, p333-337	en
dc.identifier.issn	0022-3093
dc.identifier.uri	http://hdl.handle.net/2289/3412
dc.language.iso	en	en
dc.publisher	Elsevier	en
dc.relation.uri	http://dx.doi.org/doi:10.1016/0022-3093(79)90145-5	en
dc.rights	1979 Elsevier B.V.	en
dc.title	Far infrared transmission and structure of Pb---Ge---S semiconducting glasses	en
dc.type	Article	en

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