Title :
Sub-gap photo-enhanced secondary electron emission from single-crystal CVD diamond
Author :
Yater, J.E. ; Shaw, J.L. ; Jensen, Kevin L. ; Wood, Frank ; Pate, Bradford B. ; Feygelson, Tatyana
Author_Institution :
Electron. Sci. & Technol. Div., Naval Res. Lab., Washington, DC, USA
Abstract :
Secondary-electron-emission current measured from high-purity, single-crystal CVD diamond is found to increase when 3.1-eV photons are incident on the hydrogenated surface. Energy spectra indicate that the sub-gap illumination causes the band levels to shift in the bulk, thereby reducing the upwards band bending at the pinned surface.
Keywords :
chemical vapour deposition; diamond; secondary electron emission; surface energy; band levels; electron volt energy 3.1 eV; energy spectra; secondary electron emission current; single crystal CVD diamond; subgap illumination; subgap photoenhanced secondary electron emission; Current measurement; Diamonds; Lighting; Measurement by laser beam; Reflection; Surface treatment; Temperature measurement; band bending; diamond; negative electron affinity; photo-enhancement; secondary emission;
Conference_Titel :
Vacuum Nanoelectronics Conference (IVNC), 2013 26th International
Conference_Location :
Roanoke, VA
DOI :
10.1109/IVNC.2013.6624754
