- Jones, P.L. and Dimmey, L.J. and Park, H. and Cocks, F.H. and Hacker, H., Jr., Control of the optical band gap of hydrogenated amorphous boron: the use of B2H6-BF3 gas mixtures,
J. Non-Cryst. Solids (Netherlands), vol. 55 no. 3
pp. 335 - 41 [0022-3093(83)90039-X] .
(last updated on 2007/04/10)
Amorphous boron thin films have been produced by the glow discharge decomposition of diborane, boron trifluoride, and hydrogen gas mixtures. The optical band gap of these films was controlled by changing the relative proportions of diborane and boron trifluoride. Films with band gaps on approximately 1.45 eV can be obtained by using a B2H6:BF3 gas volume ratio of 8:1 and a substrate temperature of 225°C. The electron paramagnetic resonance spectrum shows a pronounced shift in the g factor giving evidence of fluorine incorporated into the amorphous matrix
boron;energy gap;g-factor;hydrogen;optical constants;paramagnetic resonance of ions and impurities;plasma deposition;