Adaptive IR Sensing Based on Advanced Nanostructures with Tunable Kinetics
Abstract
The project addressed development of novel reconfigurable nanomaterials and adaptive IR detectors for third generation infrared imaging systems. The research program focused on design on advanced quantum dot (QD) and quantum well (QW) nanostructures and graphene-based nanomaterials with tunable kinetics of photoelectrons. The research program established scientific, engineering, and technological basis for further development of IR nanomaterials with nanoscale potential profile that can be effectively controlled by voltage bias and/or optical bias. While currently optoelectronic devices are based on the structures with potential barriers changing in one and/or two dimensions, the innovative approach is based on the novel paradigm of 3D nanoscale potential, which strongly enhances functionality of materials and structures. Moreover, bias- tunable nanoscale profile provides fast and efficient control of all optoelectronic properties of novel reconfigurable nanomaterials. Achieved tunable and sensing functionalities provide fast and effective control of the major optoelectronic properties including photocarrier lifetime, electron transport, spectral characteristics, noise parameters, and coupling to electromagnetic radiation. We also demonstrated that the single graphene layer, graphene bi-layers, graphene nano-ribbon, and multiple graphene layer structures opens up prospects of further enhancement of capabilities of graphene- based optoelectronic devices, in particular, IR detectors and emitters.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 05, 2015
- Accession Number
- ADA627319
Entities
People
- Andrei V. Sergeev
- Vladimir Mitin
Organizations
- State University of New York