Non-equilibrium charge-carrier dynamics and transport in group-IV semiconductors for IR applications
Abstract
Group-IV semiconductors have been used in a wide array of electronic, electro-optic (EO) and infrared (IR) optical devices. Their continued and extended use in novel focal plan array (FPAs) technology requires understanding of the photonic and optoelectronic properties. This project will use sub-picosecond infrared-pump and terahertz-probe techniques to measure the AC (photo)conductivity and transient dynamics of charge carriers. This combined transport and dynamics approach will elucidate all aspects associated with non-equilibrium performance within the the Group-IV materials, layers and junctions, under test in order to benchmark them for use the EO and IR applications, such as FPAs.The group at West Virginia University will apply these techniques to GeSn-based materials grown University of Arkansas and Air-Force Research Laboratory to support modeling work at NSWC Crane. This work is expected to provide full characterization of the photocarrier dynamics and non-equilibrium transport in GeSn film as a function of Sn to complement existing activities.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Nov 09, 2024
- Source ID
- N000142412722
Entities
People
- Alan Bristow
Organizations
- Office of Naval Research
- United States Navy
- West Virginia University