Emilio J. Juarez-Perez

HomeEmilio J. Juarez-Perez


Chemical Chemical Engineer and Outstanding Award PhD in Chemistry with a multidisciplinary background in Materials Science research. Versatile Scientist with 10+ years of experience providing PhD-level scientific services to multiple research projects conducted in academia and industry. Methodical and solutions-oriented scientist with 60+ publications in high impact peer reviewed journals and 50+Conferences.

Extensive experience in fabrication and characterization of hybrid perovskite based optoelectronic devices. Enthusiastic and capable of working independently, simultaneously handling multiple projects with interest in new materials development. Experience in the preparation of research project proposals for academic and industrial environments.

Prospects of chemical and operational stability for perovskite solar cells

Hybrid lead halide based perovskites have emerged as promising active materials for photovoltaic cells. Over the past decade, enormous efforts have been devoted to device fabrication and optimization leading to power conversion efficiencies exceeding 25%, which gives perovskite solar cells the competitive advantage over many other well-known solar photovoltaic technologies. Despite superb efficiencies achieved in laboratory-scale devices, it was soon recognized that long-term stability of this material was rapidly compromised under ambient conditions and such instability could jeopardize the commercial prospects of perovskite solar cells.

In this talk, current strategies to overcome the long-term instability problem are outlined including discussion between the thin line separating 1) photo- and thermal degradation processes, 2) true chemical decomposition reactions versus evaporation-like processes, 3) the halide effect on stability in terms of energy barriers during degradation reactions and 4) clear distinction between intrinsic stability of the active material and the expected operational stability of the device. In summary, a balanced assessment of this multifaceted problem to give us a positive perspective for the commercial future of this technology.