Molecular Engineering of Hybrid Perovskites Quantum Wells for Nano-Photonics
Abstract
The goal of this proposal is to elucidate the processing, structure, function relationships of 2Dlayered perovskites and their heterostructures to enable the development of advancedoptoelectronic and photonic applications. Two-dimensional (2D) layered perovskites represent anew class of low-dimensional semiconductors that offer unprecedented possibilities fortechnological applications in nanoelectronics and photonics, which can be used by Air Force toimprove our national warfighting and peacekeeping capabilities. Compared to QWs andheterostructures formed by 3D semiconductors, layered perovskites offers greater tunability inmaterial properties and possibilities for cheaper and faster synthesis through chemical means suchas solution- and vapor-based growth processes. Specific aims of this proposal include (1) establishdesign relationships between structural parameters, quantum confinement, and optoelectronicproperties of hybrid 2D perovskite QWs (both single and double QWs); (2) demonstrate andexplore these relationships within both type I and type II 2D perovskite heterostructures createdby co-assembly of differing inorganic layers as well as combinations of semiconducting organicspecies, inorganic sheets, and surface-templated patterning to enable direct growth on devicerelevant substrates; (3) Develop post-synthesis modifications that allow surface doping,modification, and molecular exchange of either deposited inorganic or organic domains; (4)Employ a wide range of techniques to investigate how structure controls the fundmental electronicand optical properties of these perovskite QWs and heterotructures, including properties such asinterfacial energy level alignment, excitonic properties (lifetime, drift-diffusion, binding energyetc.), electro-optical properties, and nonlinear optical properties as a function of electrostaticcontrol.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 09, 2018
- Source ID
- FA95501810046
Entities
People
- Xiaodong Xu
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of Washington