Off-campus UMass Amherst users: To download campus access dissertations, please use the following link to log into our proxy server with your UMass Amherst user name and password.
Non-UMass Amherst users: Please talk to your librarian about requesting this dissertation through interlibrary loan.
Dissertations that have an embargo placed on them will not be available to anyone until the embargo expires.
Author ORCID Identifier
Open Access Dissertation
Doctor of Philosophy (PhD)
Year Degree Awarded
Month Degree Awarded
Perovskite solar cells (PSCs) have risen to the forefront of versatile thin-film technologies with power conversion efficiencies rivaling traditional silicon and the potential to be fabricated at a fraction of the cost. However, one crucial drawback to PSCs is their instability to illumination, which is likely due in part to mobile ions during operation. It is difficult to predict the influences of ion dynamics in devices, and the exact nature and impact of these ions remain elusive. In this dissertation work, I have set out to unravel the complex interplay between ions and device operation in PSCs. Through the development of novel techniques and the deployment of detailed analysis, we have been able to contribute key insight into essential questions surrounding ion dynamics in PSCs, including insight into the chemical nature of mobile ion(s), the operational influences of ionic accumulation in devices, the influence of ions during device fabrication, and strategies to stabilize PSCs through the impedance of ion transport pathways. Ultimately, this work contributes to a more comprehensive understanding of the role of ions in PSCs, which has allowed us to make informed decisions aimed to develop stabilized materials for the next generation of solar cells.
Smith, Emily C., "Elucidating the Function of Ions in Hybrid Perovskite Photovoltaics" (2022). Doctoral Dissertations. 2655.
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 License
Available for download on Friday, September 01, 2023