Asmat Ullah, Ph.D.

Postdoctoral Fellows

Postdoctoral Fellow in De Wolf Group

Research Interests

Asmat Ullah received his Ph.D. in Renewable Energy Engineering from the University of Science and Technology (UST), South Korea and he is currently a postdoctoral fellow at KAUST Solar Center. He is particularly interested in perovskite solar cells, interfaces, device engineering, and perovskite-based multijunction photovoltaics.

Selected Publications

  • Ullah, A.; Park, K. H.; Nguyen, H. D.; Siddique, Y.; Shah, S. F. A.; Tran, H.; Park, S.; Lee, S. I.; Lee, K.-K.; Han, C.-H. Novel Phenothiazine-Based Self-Assembled Monolayer as a Hole Selective Contact for Highly Efficient and Stable p-i-n Perovskite Solar Cells. Adv. Energy Mater. 2022, 12 (2), 2103175.
  • Ullah, A.; Park, K. H.; Lee, Y.; Park, S.; Faheem, A. B.; Nguyen, H. D.; Siddique, Y.; Lee, K.-K.; Jo, Y.; Han, C.-H.; Ahn, S.; Jeong, I.; Cho, S.; Kim, B.; Park, Y. S.; Hong, S. Versatile Hole Selective Molecules Containing a Series of Heteroatoms as Self-Assembled Monolayers for Efficient p-i-n Perovskite and Organic Solar Cells. Adv. Funct. Mater. 2022, 32 (49), 2208793.
  • Siddique, Y.; Son, K.; Rana, T. R.; Naqvi, S. D. H.; Hoang, P. M.; Ullah, A.; Tran, H.; Lee, S. M.; Hong, S.; Ahn, S. K.; Jeong, I.; Ahn, S. Air-Processable High-Efficiency CISSe Solar Cells from DMF Molecular Solution and Their Application to Perovskite/CISSe Tandems. Energy Environ. Sci. 2022, 15 (4), 1479–1492.
  • Lee, M.-S.; Sarwar, S.; Park, S.; Ullah, A.; Thi Thuy, D.; Han, C.; Ahn, S.; Jeong, I.; Hong, S. Efficient Defect Passivation of Perovskite Solar Cells via Stitching of an Organic Bidentate Molecule. Sustain. Energy Fuels 2020, 4 (7), 3318–3325.
  • Kamran, M.; Ullah, A.; Rahman, S.; Tahir, A.; Nadeem, K.; Anis ur Rehman, M.; Hussain, S. Structural, Magnetic, and Dielectric Properties of Multiferroic Co1−xMgxCr2O4 Nanoparticles. J. Magn. Magn. Mater. 2017, 433, 178–186.
  • Nadeem, K.; Ullah, A.; Mushtaq, M.; Kamran, M.; Hussain, S. S.; Mumtaz, M. Effect of Air Annealing on Structural and Magnetic Properties of Ni/NiO Nanoparticles. J. Magn. Magn. Mater. 2016, 417, 6–10.


  • Ph.D. in Renewable Energy Engineering from the University of Science and Technology, South Korea 2022.
  • M.S. in Physics from International Islamic University Islamabad, Pakistan 2016.

Professional Profile

  • 2019-2022: Student researcher at the Korea Institute of Energy Research (KIER)
  • 2017-2019: Student researcher at Korea Institute of Materials Science (KIMS).

KAUST Affiliations

  • ​KAUST Solar Center (KSC)
  • Division of Physical Science and Engineering (PSE)​

Research Interests Keywords

perovskite solar cells Interfaces Tandem Solar Cells