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Dr. Mengjin Yang received his Ph.D. in Materials Science from the University of Pittsburgh, where he investigated nanomaterials for solar energy conversion under the supervision of Prof. Jung-Kun Lee. His Ph.D. studies focused on bandgap engineering and carrier-transport characterization of oxide materials. After graduation, he spent two years as a postdoctoral researcher at Florida International University to set up photovoltaic research in Prof. Wenzhi Li’s laboratory—from dye-sensitized solar cells to emerging halide perovskite solar cells. Since 2014, he has been working on perovskite device fabrication and characterization at NREL under the advisement of Dr. Kai Zhu.

Research Interests

Ink formulation and scalable deposition of hybrid materials

Device and module physics characterization and their optimization

Optoelectronic applications of hybrid perovskite and nanomaterials


Ph.D., Mechanical Engineering and Materials, University of Pittsburgh, USA

M.E. Materials Science and Engineering, Tsinghua University, China

B.E. Materials Science and Engineering, Chongqing University, China

Featured Publications

Yang, M.; Li, Z.; Reese, M.O.; Reid, O.G.; Kim, D.H.; Siol, S.; Klein, T.R.; Yan, Y.; Berry, J.J.; van Hest, M.F.A.M.; Zhu, K., “Perovskite ink with wide processing window for scalable high-efficiency solar cells,” Nature Energy 2, 17038 (2017).

Yang, M.; Zeng, Y.; Li, Z.; Kim, D.H.; Jiang, C.-S.; van de Lagemaat, J.; Zhu, K., “Do grain boundaries dominate non-radiative recombination in CH3NH3PbI3 perovskite thin films?,” Phys. Chem. Chem. Phys. 19, 5043–5050 (2017).

Yang, M.; Zhang, T.; Schulz, P.; Li, Z.; Li, G.; Kim, D. H.; Guo, N.; Berry, J. J.; Zhu, K.; Zhao, Y., “Facile fabrication of large-grain CH3NH3PbI3-xBrx films for high-efficiency solar cells via CH3NH3Br-Selective Ostwald ripening,” Nature Commun. 7, 12305 (2016).

Li, Z.; Yang, M.; Park, J.-S.; Wei, S.-H.; Berry, J.J.; Zhu, K., “Stabilizing perovskite structures by tuning tolerance factor: Formation of formamidinium and cesium lead iodide solid-state alloys,” Chem. Mater. 28, 284–292 (2016).

Yang, M.; Zhou, Y.; Zeng, Y.; Jiang, C.-S.; Padture, N.P.; Zhu, K. “Square-centimeter solution-processed planar CH3NH3PbI3 perovskite solar cells with efficiency exceeding 15%,” Adv. Mater. 27, 6363–6370 (2015).

Zhang, T.; Yang, M.; Zhao, Y.; Zhu, K., “Controllable sequential deposition of planar CH3NH3PbI3 perovskite films via adjustable volume expansion,” Nano Lett. 15, 3959–3963 (2015).

Wozny, S.; Yang, M.; Nardes, A.M.; Mercado, C.C.; Ferrere, S.; Reese, M.O.; Zhou, W.; Zhu, K., “Controlled humidity study on the formation of higher efficiency formamidinium lead triiodide-based solar cells,” Chem. Mater. 27, 4814–4820 (2015).

View all NREL publications for Mengjin Yang.