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US4356246A Method of making .alpha.-silicon powder, and electrophotographic materials incorporating said powder 失效
制备α-硅粉末的方法和包含所述粉末的电子照相材料

Method of making .alpha.-silicon powder, and electrophotographic
materials incorporating said powder
Abstract:
A noncrystalline silicon powder having excellent photoconductivity is described, comprising silicon and hydrogen, exhibiting an infrared absorption spectrum characterized by absorption peaks centered at about 2000 cm.sup.-1 and 630 cm.sup.-1, wherein the height of the absorbance peak at 2000 cm.sup.-1 is at least one-tenth the height of the peak centered at 630 cm.sup.-1, and exhibiting a spin density of not more than 10.sup.18 cm.sup.-3 determined by electron spin resonance spectroscopy; the noncrystalline silicon powder is used as highly efficient photoconductor in photoconductive compositions utilized for the production of electrophotographic photoreceptors.
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