Dr. Sami Ullah | Solar Cell | Best Researcher Award

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Dr. Sami Ullah | Solar Cell | Best Researcher Award

Postdoc fellow, Institute of Physics, Slovak academy of sciences, Slovakia

Dr. Sami Ullah is a physicist specializing in photovoltaics, with over five years of research experience in perovskite solar cells. His expertise encompasses laser patterning, thin film preparation, materials characterization, device fabrication, and testing. His research focuses on scaling up perovskite technology, optimizing self-assembled monolayers (SAMs) deposition, vacuum deposition, charge transport layer engineering, and integrating 2D materials into optoelectronics, sensors, and energy harvesting applications.

Profile

Education

  • Ph.D. in Physics (Photovoltaics and Advanced Materials)
    University of Balochistan, Quetta, Pakistan (2019–2022)
    Thesis: Transport Layer Engineering of Efficient Perovskite Solar Cells​

  • M.S. in Physics (Nanotechnology and Nanosciences)
    University of Balochistan, Quetta, Pakistan (2014–2016)
    Thesis: ZnO Nanostructure-Based Dye-Sensitized Solar Cells​

Work Experience

  • Postdoctoral Researcher
    Institute of Physics, Slovak Academy of Sciences, Bratislava, Slovakia (May 2024–Present)
    Focus: Co-deposition of SAMs for stable inverted perovskite solar cells and fabrication of crystalline FAPbI₃-based p-i-n perovskite solar cells.​

  • Lecturer
    Department of Physics, University of Balochistan, Quetta, Pakistan (2012–2024)
    Responsibilities: Teaching and conducting laboratory experiments.​

  • Visiting Researcher
    Chimie ParisTech – PSL Research University, Paris, France (2021–2022)
    Achievements: Fabricated n-i-p perovskite solar cells with over 21% power conversion efficiency in a glove box environment.​

  • Guest Researcher
    Institute of Physics, Slovak Academy of Sciences, Bratislava, Slovakia (2019–2020)
    Contributions: Engineered transport layers (SnO₂ and NiOₓ), fabricated n-i-p/p-i-n perovskite solar cells, and utilized 2D MXene (Ti₃C₂Tx) as an additive and interlayer.​

Awards and Honors

  • Guest Researcher Scholarship
    Higher Education Commission (HEC) of Pakistan, 2021
    Awarded a one-year research stay at Chimie ParisTech, PSL-CNRS, Paris, France.​

Research Focus

Dr. Ullah’s research aims to enhance the efficiency and stability of perovskite solar cells. His work on SAMs deposition techniques addresses interfacial charge recombination, improving energy band alignment and surface morphology. Additionally, his exploration of 2D materials like MXene aims to optimize charge transport layers, contributing to the development of high-performance, stable photovoltaic devices.​ResearchGate

Publication Top Notes

  1. “Simulation-based optimization of CdS/CdTe solar cells incorporating MXene-enhanced SnOâ‚‚ buffer layer: insights from experimentally validated material properties”
    Journal: Solar Energy (2025)
    This study investigates the incorporation of MXene-enhanced SnOâ‚‚ buffer layers in CdS/CdTe solar cells, offering insights into material properties and optimization strategies.

  2. “Self-powered TENG probe for scanning surface charge distribution”
    Journal: Nanotechnology (2024)
    The paper presents a self-powered triboelectric nanogenerator (TENG) probe designed for scanning surface charge distributions, highlighting its potential applications in nanoscale measurements.

  3. “Tailoring the electronic properties of the SnOâ‚‚ nanoparticle layer for n-i-p perovskite solar cells by Ti₃Câ‚‚Tx MXene”
    Journal: Materials Today Communications (2023)
    This research explores the modification of SnO₂ nanoparticle layers with Ti₃C₂Tx MXene to enhance the electronic properties of n-i-p perovskite solar cells.

  4. “Mesoporous SnOâ‚‚ Nanoparticle-Based Electron Transport Layer for Perovskite Solar Cells”
    Journal: ACS Applied Nano Materials (2022)
    The article discusses the development of mesoporous SnOâ‚‚ nanoparticle-based electron transport layers, aiming to improve the performance of perovskite solar cells.

  5. “A synergistic effect of the ion beam sputtered NiOâ‚“ hole transport layer and MXene doping on inverted perovskite solar cells”
    Journal: Nanotechnology (2022)
    This publication examines the combined effect of ion beam sputtered NiOâ‚“ hole transport layers and MXene doping on the performance of inverted perovskite solar cells.

Conclusion

Dr. Sami Ullah demonstrates a robust and impactful research career characterized by:

  • Innovative contributions to perovskite and thin-film photovoltaics,
  • Cross-disciplinary work involving nanomaterials and sensors,
  • A consistent publication record in prestigious, peer-reviewed journals,
  • Valuable international research collaborations and national academic service.