Dr. Sagar Bhattarai

About

Scientist & Innovator at Indian Institute of Technology Guwahati, Assam, India

Employment

• Indian Institute of Technology Guwahati Scientist
  2023 - Present
• Arunachal University of Studies HoD & Assistant Professor
  2022 - 2023
• National Institute of Technology Arunachal Pradesh Junior Research Fellow (PhD Scholar)
  2019 - 2022

Education

• National Institute of Technology Arunachal Pradesh PhD
  2019 - 2022
• National Institute of Technology Arunachal Pradesh M.Sc
  2017 - 2019
• Gauhati University BSc
  2014 - 2017

Projects & Funding

Projects & funding information is unavailable.

Publications (116)

• Optimizing performance of high-efficiency 2D/3D bilayer inverted perovskite solar cells: A comprehensive analysis
  Journal of Physics and Chemistry of Solids 2026 DOI: 10.1016/j.jpcs.2026.113981
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• Enhancing efficiency in organic solar device with exclusive study using PC-1D simulator
  Journal of Optics 2026 DOI: 10.1007/s12596-024-02345-4
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• Advanced Tuning of Optoelectronic and Structural Parameters in Cs2AgBiI6‐Based Lead‐Free Perovskite Solar Cells: Toward 28.95% Efficiency
  ChemistrySelect 2026 DOI: 10.1002/slct.73496
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• Physics-informed machine learning for lead-free dual-absorber perovskites: unveiling the synergy of Cs2NaIrCl6/Cs2AgBi0.75Sb0.25Br6
  RSC Advances 2026 DOI: 10.1039/D6RA05207J
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• Empowering rubidium-based halide PSCs: A deep dive into ETL material performance
  Journal of Physics and Chemistry of Solids 2025 DOI: 10.1016/j.jpcs.2025.112897
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• Exclusive optimization techniques for Cesium based perovskite solar cell for the efficiency increment
  Journal of Optics 2025 DOI: 10.1007/s12596-024-02026-2
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• Exclusive optimization of Cs2AgBi0.75Sb0.25Br6-based solar cells using dual ETL with better photo transmission
  Multiscale and Multidisciplinary Modeling, Experiments and Design 2025 DOI: 10.1007/s41939-025-00985-y
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• Photovoltaic Performance of Lead-Free Cs2AgBiBr6 Solar Cell with Low Cost CuSCN as HTL from SCAPS Simulation
  Transactions on Electrical and Electronic Materials 2025 DOI: 10.1007/s42341-025-00658-0
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• Recent advances in photonic crystal-based encoder and decoder designs: a comprehensive review
  The European Physical Journal Plus 2025 DOI: 10.1140/epjp/s13360-025-06495-7
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• A review on photonic crystal-based components of all-optical ALU
  Journal of Optics 2025 DOI: 10.1007/s12596-025-02794-5
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