00831nam a22001697a 4500040003600000082001600036100002700052245010700079260003200186300004100218500010800259500002500367500004900392502007000441546001200511650013800523  cRiphah International University  bHUSa546.72  aHusnain Rafiq (401838)  aAn Ab-Initio study of structural, optical and thermal properties of PbX (X=Se, S and Te) Chalcogenides  aLahoreb(unpublished)c2020  aviii, 54 p.b: ill.c; 30 cm.e+ CD.  aSubmitted in partial fulfillment of the requirements for the degree of Master of Philosophy in Physics.  aIncludes references.  aThesis supervisor: Dr. Muhammad Waqas Iqbal.  aThesis (M. Phil. Physics)--Riphah International University, 2020.  aEnglish  aChalcogenidesaPhysicsvAB-Intino studyvGeothermal energyvThermal properties vOptical properties vCarbon dioxidevPhysics vRICAS