'He said to me, 'Harry, I like the idea that you have a background in semiconductors and electrical measurements. And what I want you to work on is ceramics,'' Tuller recalls. 'Ceramics' The only ceramics I was familiar with were coffee cups and plates.' Over the next nearly 50 years, Tuller, the RP Simmons Professor of Ceramics and Electronic Materials in the Department of Materials Science and Engineering, would become a world-leading researcher in electroceramics, a class of ceramic materials that enable technologies such as energy conversion, electronics, and communications. Earlier this year, Tuller and other researchers demonstrated for the first time how light can be used to switch on and off the passage of ions in devices such as fuel cells and lithium batteries, improving their performance. In the spring, Tuller was named a 2022 Materials Research Society Fellow for his work in solid-state chemistry and electrochemistry, 'leading to the in-depth understanding of multiple key materials, systems, and mechanisms,' as well as mentoring new scientists....