X-ray Photoelectron Spectroscopy (XPS)/Hard Energy photoelectron spectroscopy (HAXPES) for Fast, Mul
Abstract
X-ray Photoelectron Spectroscopy (XPS)/Hard Energy photoelectron spectroscopy (HAXPES) for Fast, Multiplexed, and Autonomous Underwa,ter Bioelectronic Sensors Project SummaryThis DURIP proposal aims to acquire a PHI Quantes Scanning XPS/HAXPES Microprobe Spectropho,tometer for sensitive surface chemistry analysis of conductive polymer films for underwater bioelectronic sensors. X-ray photoelectr,on spectroscopy (XPS) is a sensitive spectroscopic technique used to analyze the chemical state and electronic structure of various,surfaces and interfaces. Most commercial XPS systems that are currently on the market are based on monochromatic soft X-ray source (,Aluminum K, 1486.7 eV) radiation that has limited penetration depth (typically less than 10 nm for most materials). This proposed i,nstrument combines XPS with a Hard X-ray Photoelectron Spectroscopy (HAXPES) monochromatic high energy X-ray source (Chromium K, 54,14.7 eV) with the Aluminum K source to obtain a depth that is nearly 3x deeper than the Al source alone. This added capability will, enhance the chemical characterization and analysis of engineered exoelectrogenic bacteria that are embedded in a conductive polymer, matrix for underwater biosensors and other materials that are being developed for a broad range of defense applications, ranging fr,om sustainable energy and environmental materials to new polymeric materials that interface with living organisms. If acquired, Rice, University would be the first US university to operate this PHI Quantes XPS/HAXPES system. The PHI Quantes Scanning XPS/HAXPES Micr,oprobe Spectrophotometer will be overseen and administered through the Shared Equipment Authority (SEA), Rices faculty-centric appr,oach to shared research infrastructure that currently manages the universities research facilities. This will ensure well-developed,user training practices, accessibility for internal and external academic and industrial users through the established SEAs user ag,reements, and a stable financial basis for ongoing instrument operations, including staff support. Rice has a number of related Depa,rtment of Defense (DOD) supported projects related to sustainable energy, advanced material manufacturing, synthetic biology, and bi,oelectronics. The PHI Quantes XPS will create a regional hub in the Texas region for advanced characterization of nanomaterials. Pla,cing this instrument into Rices SEA will ensure that it is broadly accessible to researchers working with DOD-related research and,educational projects.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 01, 2022
- Source ID
- N000142212298
Entities
People
- Rafael Verduzco
Organizations
- Office of Naval Research
- Rice University
- United States Navy