Nanoscale Pyroelectric Hybrid Materials Undergoing Structural Phase Transition
Abstract
This project explores the fundamental relation between pyroelectricity and structures/lattice dynamics/electron-phonon renormalization of nanoscale materials. Over this project, we have showed that (1) electron-phonon renormalization plays a substantial role in pyroelectricity; (2) electron-phonon renormalization can be tuned drastically by the dimensionality of the nanoscale pyroelectric materials including polar oxides and chalcogenides; (3) through dimensionality engineering, giant pyroelectric coefficients and figures of merits can be received; (4) the thermally-induced phase transition of VO2 could drastically modify the felxo-photovoltaic behaviors of strain gradient-engineered chalcogenides; (5) the phase transition of VO2 can induce significant strain in halide leading to structural phase transition of halide.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 24, 2022
- Accession Number
- AD1231215
Entities
People
- Jian Shi
Organizations
- Rensselaer Polytechnic Institute