Pressure-Induced Enhanced Optical Absorption in Sulvanite Compound Cu<sub>3</sub>TaX<sub>4</sub> (X = S, Se, and Te): An <i>ab Initio</i> Study
Himanshu JoshiA. ShankarNihal LimbuCondensed Matter Theory Research Lab, Kurseong College, Darjeeling 734203, IndiaMahesh RamCondensed Matter Theory Research Lab, Kurseong College, Darjeeling 734203, IndiaA. LarefP. K. PatraDepartment of Physics, North Eastern Hill University, Shillong, Meghalaya 793022, IndiaOksana IsmailovaTurin Polytechnic University in Tashkent, Tashkent 100095, UzbekistanLalhriat ZualaPhysical Sciences Research Center (PSRC), Department of Physics, Pachhunga University College, Mizoram University, Aizawl, Mizoram 796001, IndiaSuman ChatterjeeDepartment of Physics, University of North Bengal, Siliguri, Darjeeling 734013, IndiaDibya Prakash RaiPhysical Sciences Research Center (PSRC), Department of Physics, Pachhunga University College, Mizoram University, Aizawl, Mizoram 796001, India
ABI
Аннотация
considered ineffective for absorber materials, and also the hole effective mass has been modulated through applied pressure. These materials show extreme resistance to external pressure, and are found to be stable up to a pressure range of 10 GPa, investigated using phonon dispersion calculations. The observed optical properties and the absorption coefficients within the visible-light spectrum make these compounds promising materials for photovoltaic applications. The calculated energy and optical band gaps are consistent with the available literature and are compared with the experimental results where available.
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