Studies on bulk and thin films of lead pb modified chalcogenide glasses

Abstract

Chalcogenide glasses contain group VI A elements of the periodic table such as Sulphur Selenium or Tellurium as their major constituent Chalcogenide glasses are known to be p type semiconductors It was reported that Ge Se glasses containing appropriate amounts of Bismuth Bi or Lead Pb exhibited n type conduction Bi modified chalcogenide glasses have received more attention in the literature as compared to Pb modified chalcogenide glasses In this thesis a systematic study of the elect