Transient surface photovoltage in n-and p-GaN as probed by x-ray photoelectron spectroscopy
Applied Physics Letters
Item Usage Stats
MetadataShow full item record
Transient surface photovoltage (SPV) of n and p-GaN was measured using x-ray photoelectron spectroscopy (XPS) with a time resolution of 0.1 s. The measured SPV transients for both n- and p-GaN are 0.1 s, and for the n-GaN they are not affected by flood-gun electrons. However, for the p-GaN, the transient character of the SPV is dramatically changed in the presence of flood-gun electrons. The combination of time-resolved XPS, flood gun, and laser illumination give us a new way to study the surface electronic structure and other surface properties of semiconducting materials in a chemically specific fashion.
Surface electronic structures
X ray photoelectron spectroscopy
Published Version (Please cite this version)http://dx.doi.org/10.1063/1.3564892
Showing items related by title, author, creator and subject.
Surface evolution of 4H-SiC(0001) during in-situ surface preparation and its influence on graphene properties Ul Hassan J.; Meyer, A.; Cakmakyapan, S.; Kazar O.; Flege J.I.; Falta J.; Ozbay, E.; Janzén, E. (2013)The evolution of SiC surface morphology during graphene growth process has been studied through the comparison of substrate surface step structure after in-situ etching and graphene growth in vacuum. Influence of in-situ ...
Balkan, N.; O'Brien-Davies, A.; Thoms, A. B.; Potter, R. J.; Poolton, N.; Adams, M. J.; Masum J.; Bek, A.; Serpenguzel, A.; Aydinli, A.; Roberts J. S. (SPIE - The International Society for Optical Engineering, 1998-01)The hot Electron Light Emission and Lasing in Semiconductor Heterostructures devices (HELLISH-1) is novel surface emitter consisting of a GaAs quantum well, within the depletion region, on the n side of Ga 1-xAlxAs p- n ...
Caglayan H.; Ozbay, E. (Optical Society of American (OSA), 2008)We investigated the splitting of surface electromagnetic waves trapped at the output surface of a one-dimensional metallic grating structure. The output gratings of the structure asymmetrically such that the output surfaces ...