Material, Interface, and Process Engineering of High Performance Perovskite Solar Cells

Alex Jen^a

^aUniversity of Washington, US, Seattle, United States

Proceedings of International Conference Solution processed Semiconductor Solar Cells (SSSC14)

Organizers: Henry Snaith and Samuel Stranks

Invited Speaker, Alex Jen, presentation 088
Publication date: 1st July 2014

In this talk, an integrated approach of combining material design, interface, and process engineering will be discussed to demonstrate significantly improved performance of hybrid perovskite photovoltaic cells. Advances in controlled synthesis, processing, and tuning of the properties of peroskites have enabled significantly enhanced performance of organic-inorganic hybrid solar cells. The performance of these hybrid solar cells is strongly dependent on their efficiency in harvesting light, charge dissociation, transport, and collection at the metal/organic/metal oxide or the metal/perovskite/metal oxide interfaces. Therefore, it is very critical to tailor the molecular compositions of perovskite precursors and the interfaces with charge-transporting layer or device substrates to control the crystallization kinetics of perovskies to improve their quality and surface coverage. In addition, the stability of these hybrid devices can also be dramatically improved through simple surface functionalization to reduce device hysteresis during operation.

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