Hydrogen Incorporation Scheme in Amorphous-Microcrystalline Mixed-Phase Si: H Films

Abstract
Silicon-hydrogen alloy films containing both microcrystalline phase and amorphous phase (µc-Si: H) are prepared by sputtering, magnetron sputtering and glow-discharge methods. Results of NMR measurements for hydrogen in µc-Si: H are qualitatively similar to those in amorphous silicon-hydrogen alloy films except that hydrogens are easy to move and exhibit the motional narrowing effect. There seems to be little possibility of presence of a large amount of non-bonded hydrogens such as hydrogen molecules or atomic hydrogens.