@article{park_camphausen_myers_barletta_sakhrani_bergman_nemanich_cuomo_1999, title={Raman scattering of tetrahedrally-bonded amorphous carbon deposited at oblique angles}, volume={41}, ISSN={["1873-4979"]}, DOI={10.1016/S0167-577X(99)00135-4}, abstractNote={Amorphous carbon (txa-C1−x) films were prepared by filtered cathodic arc deposition (FCAD). The films were deposited on p-type Si (111). The angle of beam incidence was varied from 0° to 75° with respect to the substrate normal. Micro-Raman spectroscopy, electron energy loss spectroscopy (EELS), and transmission electron microscopy (TEM) were carried out for sample analysis. It was found that the position of the G peak shifts to a higher wave number region as the angle of incidence increases. This means that the sp2/sp3 ratio increases with increasing angle. This conclusion is supported by EELS. The film deposited at an angle of 75° exhibits a columnar structure with alternating high and low carbon density regions.}, number={5}, journal={MATERIALS LETTERS}, author={Park, M and Camphausen, SM and Myers, AF and Barletta, PT and Sakhrani, V and Bergman, L and Nemanich, RJ and Cuomo, JJ}, year={1999}, month={Dec}, pages={229–233} } @article{bozeman_camphausen_cuomo_kim_ahn_ko_1997, title={Electron field emission from amorphous carbon-cesium alloys}, volume={15}, ISSN={["1520-8559"]}, DOI={10.1116/1.580928}, abstractNote={Hard carbon films can be prepared by the condensation of energetic carbon species at and below room temperature. These hydrogen-free films are primarily tetrahedrally coordinated and contain high fractions of sp3 bonding. Field emission from these and other forms of carbon has been considered previously, but it was generally unstable or based on surface treatments that limit their operating conditions. We report electron emission from amorphous carbon-cesium (a-C:Cs) thin films at applied fields as low as 7 V/μm. This emission characteristic is relatively insensitive to surface treatment; films left under ambient laboratory environment for more than six months show these favorable characteristics with no pretreatment. We describe the fabrication process and emission properties of these films.}, number={3}, journal={JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A}, author={Bozeman, SP and Camphausen, SM and Cuomo, JJ and Kim, SI and Ahn, YO and Ko, Y}, year={1997}, pages={1729–1732} } @article{ding_myers_choi_vispute_camphausen_narayan_cuomo_hren_bruley_1997, title={Field emission from amorphous diamond coated Mo tip emitters by pulsed laser deposition}, volume={15}, number={4}, journal={Journal of Vacuum Science & Technology. B, Microelectronics and Nanometer Structures}, author={Ding, M. Q. and Myers, A. F. and Choi, W. B. and Vispute, R. D. and Camphausen, S. M. and Narayan, J. and Cuomo, J. J. and Hren, J. J. and Bruley, J.}, year={1997}, pages={840–844} }