Transport Control and Anomalous High-Pressure Phenomena in Hybrid Bronzes
Prof. Adam Jaffe
Department of Chemistry & Biochemistry
University of Notre Dame
We have developed a broad family of mixed-valence hybrid organic-inorganic metal
oxides as a new air- and water-stable material platform that we call hybrid bronzes. These
versatile materials combine alternating layers of (1) two-dimensional inorganic metal-oxide
sheets featuring adjustable band gaps and tunable carrier concentrations with (2) ordered arrays
of molecular species that can direct structure and impart greater chemical versatility. In other
words, these layered hybrid systems integrate inorganic conduction pathways that possess high
charge carrier mobility with molecular centers that feature chemical function but would
otherwise be unable to transport charge. Hybrid bronzes display tunable electronic structure,
redox activity, and stimulus-driven phase transitions, lending themselves toward future
applications in optoelectronics, energy storage, or even information technologies. In seeking
design rules for this new material platform, we have explored the diverse structural and
electronic property relationships within hybrid bronzes, revealing methods to control electronic
transport through atomic substitution and molecular templation, as well as intriguing anomalous
behavior under high pressure.
Hosted by Prof. Assaf