Cross-linked Metal Particles for Low-noise Bolometer Materials
Abstract
Demonstrate a new kind of bolometer material based on cross-linked metal particle (CLMP) films that enable independent tuning of the temperature coefficient of resistance (TCR) and l/fnoise. Note, the PI changed research institutions and this proposed project is to finish the third-year tasks of the three-year ARO contract "Dispersed metal nanoparticles for low-noise bolometer materials" (Contract# W91 INF-12-C-0089, PI: Zhi-Gang Yu). This is/was a combined theoretical and experimental effort. This research in this proposal will emphasize the experimental aspects and compare with the theory developed in the first two years. In the experimental part they will synthesize composites consisting of gold nanoparticles in which spacing is tightly controlled by using thiol-based capping and cross-linking agents. To realize the performance goals of the project, they must carefully control three properties of this metal/polymer composite: the particle size and size distribution, the volume fraction, and the nature of the capping agent. The synthesized materials will be characterized for their structural/chemical properties as well as their electrical properties. For the structural measurements they will use a variety of tools, including dynamic light scattering (DLS), UV-Yis-NIR spectroscopy, field-emission scanning electron microscopy (FESEM), AFM, FTIR, and NMR spectroscopy They will use two methods to characterize electrical transport ofDMNPs: one is a 4-point probe method, and the other is direct measurement. Direct measurement will be done by using a pair of parallel electrodes deposited on the thin film.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 12, 2017
- Source ID
- W911NF1510117
Entities
People
- Zhi-gang Yu
Organizations
- Army Contracting Command
- United States Army
- Washington State University