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First-principles study on crystal structures and bulk modulus of CuinX2(X = S, Se, S-Se) solar cell absorber

Mazalan, Elham and Abd. Aziz1, Muhammad Safwan and Amin, N. A. S. and Ismail, F. D. and Roslan, Muhammad Sufi and Chaudhary, Kashif Tufail (2023) First-principles study on crystal structures and bulk modulus of CuinX2(X = S, Se, S-Se) solar cell absorber. In: International Laser Technology and Optics Symposium 2022, iLATOS 2022, 21 September 2022 - 22 September 2022, Virtual, UTM Johor Bahru, Johor, Malaysia.

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Official URL: http://dx.doi.org/10.1088/1742-6596/2432/1/012009

Abstract

Chalcopyrite semiconductors are widely used as absorbers in thin film solar cells, especially flexible solar cells, due to their high power conversion efficiency. They also have interesting mechanical properties, making them promising materials for flexible, light, and thin solar cells. In this work, we report the first-principle calculations of the lattice constant and bulk modulus for CuInS2, CuInSe2, and CuIn(S,Se)2 absorber solar materials. All calculations are performed using plane wave as implemented in the Quantum ESPRESSO software package in the framework of density functional theory using PBE-GGA approximations and ultrasoft pseudopotentials. The calculated lattice constant correlates well with the available experimental study. The energy-volume and pressure-volume relations are described using the third order of Birch-Murnaghan's equation of state to calculate the bulk modulus of the absorber solar material, which is associated to the hardness of a material under particular conditions. The values of bulk modulus obtained for CuInS2 and CuInSe2 are in good agreement with available theoretical results, except for CuIn(S,Se)2, which have been calculated and reported for the first time.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:chalcopyrite semiconductor, crystals structures
Subjects:Q Science > QC Physics
Divisions:Science
ID Code:108233
Deposited By: Yanti Mohd Shah
Deposited On:22 Oct 2024 07:46
Last Modified:22 Oct 2024 07:46

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