Super-Resolution Imaging of Charge Carrier Recombination and Transport in Ultrathin Liquid Junction Photovoltaics
Abstract
The U.S. Air Force requires on-demand, grid-independent energy solutions to enable warfighters, expand operational effectiveness, and enhance national security. Conventional photovoltaic modules are too bulky for rapid deployment to facilities in resource-scarce locations. One solution is to use photovoltaic devices made of two-dimensional (2D) semiconductor nanosheets, which represent the ultimate miniaturization limit for lightweight and portable photovoltaics. Ultrathin photovoltaic technology could transform the way the Air Force produces energy. However, there is a growing consensus in the electronics research community that surface defect sites limit the solar energy conversion efficiency of ultrathin photovoltaics. The overall objective of this research is to develop a molecular-level understanding of how defect sites impact the overall solar energy conversion efficiency of nanosheet photovoltaics. Our hypothesis is that the presence of surface defects will influence charge carrier recombination and/or transport behavior. The general approach to test this hypothesis is to image directly charge carrier recombination and transport with nanometer spatial resolution in model liquid junction photovoltaics.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 03, 2022
- Accession Number
- AD1185097
Entities
People
- Justin B Sambur
Organizations
- Colorado State University