We have developed novel synchrotron based variable kinetic energy x-ray photoelectron spectroscopy to address the development and optimization of materials for electronics, photonics, energy conversion, sustainable energy, catalysis, and sensing applications. Materials that can be investigated include monolayers to bulk materials of all classes. Depth selectivity in 0.2 nm steps is attained by utilizing different photon energies over a wide range. Examples of ongoing measurements include (1) chemistry and bonding at semiconductor oxide interfaces, (2) oxidation of metal electrodes on semiconductors, (3) ferroelectric oxides, (4) high-k gate dielectrics, and (5) organic electronics. Such measurement studies offer the opportunity to develop and utilize NIST’s world class x-ray instrumentation and detectors, and to investigate novel materials and devices for myriad applications.

 

key words

Catalysis; Chemistry; Depth dependence; Electronic devices; Energy conversion; Interfaces; Nanomaterials; National Synchrotron Light Source; Photonic devices; Sensors; Sustainable energy; Synchrotron radiation; Variable kinetic energy; World-class capabilities;

Citizenship:  Open to U.S. citizens

Level:  Open to Postdoctoral applicants