H. Harada et al., The creation of hydrogen radicals by the hot-wire technique and its application for mu c-Si : H, SOL EN MAT, 66(1-4), 2001, pp. 253-258
A new method, Hot-wire assisted PECVD, is proposed for preparing mu -Si:H f
ilms. This method is constructed of two parts, plasma-enhanced CVD (PECVD)
and hot-wire for exciting hydrogen. Both the crystalline grain size and the
volume fraction of Si crystallites in the film are improved by this prepar
ation method compared with those of the conventional PECVD. The results obt
ained are interpreted by the enhanced hydrogen-radical density. The importa
nce of control of H radicals is discussed for the growth of the crystallite
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