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Printing Processes for Perovskites Electronics

Taking advantage of some of the unique properties of perovskite precursor solutions, we are developing a novel method of printing perovskite thin films, called RAPID. We aim to understand the thermodynamics of the process in order to control the microstructure and morphology and improve device performance and stability.

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Solution Phase Interactions in Perovskite Inks

The intermolecular interactions of perovskite precursors in solution are complex and influence the crystallization and morphology of perovskite film formation. Furthermore, these interactions can directly affect the performance and stability of perovskite films by tuning grain size, trap state density, ion diffusion, etc. We are studying how organic additives with various chemical functionalities interact directly with perovskite precursors in solution phase to gain fine control of films deposited from solution.

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Engineering Stresses in Solution-Processed Electronics

Residual stresses evolve during the synthesis of thin-films and can reduce the thermomechanical reliability of these materials, leading to catastrophic failure. Furthermore, these stresses are correlated with poor chemical stability in perovskites. We are exploring how to harness these stresses and mitigate their negative effects.

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