Graphene-based materials for long-wave infrared emission modulation (ONR Graphene)
Abstract
In the proposed work, we will use multilayer graphene structures (approximately 100 layers) (or to fabricate active optical electron,ic devices with tunable emissivity in the mid-infrared wavelength range). Figure 1 shows several images of our preliminary device ta,ken with a thermal IR camera (7 - 14 ?m range) demonstrating the ability to modulate the emissivity and, hence, apparent temperature, by applying 3-4V. In this configuration, this simple device can be used for thermal control, and we have achieved apparent temperat,ure differences as high as 10 degrees C. However, in our proposed work, we will extend this basic material/device platform to more s,ophisticated geometries (e.g., grating structures) that have more widely tunable emissivities and strongly angular-dependent thermal, emission for radiation control, dynamic thermal emission control, and radiative heat management. Our final deliverable will be a qu,antitative measure of the extent to which we can modulate thermal emissivities using this general approach.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Oct 06, 2022
- Source ID
- N000142212697
Entities
People
- Jonathan Habif
Organizations
- Office of Naval Research
- United States Navy
- University of Southern California