氢气区熔硅单晶在伸缩振动区域存在两个强吸收峰:2210 cm~(-1)、1946 cm~(-1)(10K时,频率分别为2223、1952 cm~(-1))。在纯氘气氛下前者位移到1617 cm~(-1),后者位移到(1421 cm~(-1))在氘氢混合气氛下,2223、1617 cm~(-1)发生分裂,在2223 cm~(-1)的高频方向出现2224、2226、2237、2245 cm~(-1),在1617 cm~(-1)附近出现1615、1613 cm~(-1)等新峰,而1952 cm~(-1)吸收峰则没有分裂。另文研究已证明上述分裂是由对应于2223 cm~(-1)吸收峰的氢-缺陷复合体中的氢被 There are two strong absorption peaks at 2210 cm ~ (-1) and 1946 cm ~ (1) at 22K and 1923 cm ~ (10) in the hydrogen zone. In the pure deuterium atmosphere, the former displaces to 1617 cm -1 and the latter to 1421 cm -1. In the mixed deuterium and hydrogen atmosphere, 2223 and 1617 cm -1 split, and at 2223 cm ~ (-1) appeared in the high frequency direction of 2224,2226,2237,2245 cm -1, 1615 cm ~ (-1) near 1615, 1613 cm -1 peak, and 1952 cm ~ (-1) absorption peak is not split. Another study has shown that the above splitting is caused by the hydrogen in the hydrogen-defect complex corresponding to the absorption peak at 2223 cm -1