Journal of Physics Research and Education

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Journal of Physics Research and Education (JPRE), a new journal that emphasizes contribution in the emerging areas of research and education in Physics. JPRE provides a really exciting opportunity to consider the truly interdisciplinary nature of research in Physics at a time of great change across the wider landscape of Physics research.

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Author: search.filters.author.Sarkar, JoySubject: search.filters.subject.Density of States

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    Electronic Band Structure and Density of States Analysis of Electron Transport Materials for Perovskite Solar Cells
    (University of North Bengal, 2021-01) Sarkar, Joy; Biswas, Rajat; Chatterjee, Suman
    For investigating the atomic-scale calculation of perovskite solar cells (PSCs), a detailed model of interaction between the electrons and the junctions is very essential. Such atomicscale level analysis is based on the quantum mechanical model. Therefore we need a Schrödinger equation which involves all the electrons with the associated junction potential. Here we consider the Schrödinger equation and solving it by full-potential linearized augmented plane wave (LAPW) method in Wien2k code through the Density Functional Theory (DFT). We have used generalized gradient approximation (GGA) given by Perdew-Burke-Ernzerhof (PBE) for the electronic band structure and Density of States (DOS) calculation of TiO2 and ZnO which are used in perovskite solar cell as the electron transport layer. We obtained the value of the energy bandgap as ~2.934 eV for TiO2 and ~3.119 eV For ZnO. We also determined the value of Fermi energy for both of the material. Finally, we compare the transport properties of TiO2 and ZnO by analyzing their band structure and DOS diagrams.