defect n. 1.缺陷,缺点,弱点;短处。 2.不足,缺乏。 have some defect in eyesight 目力不佳。 have the defects of one's qualities 美中不足之处。 in defect of 若无…时;因无。 vi. 叛变;逃走。 He defected to the West. 他叛逃到西方。
The studies on optical properties and irradiation effect of heavy ion implanted samples are very important from both theoretical and applied view points . in this work , the optical properties and defect structures in xe + - implanted ysz and ni + - implanted al2o3 were studied by using optical spectroscopy , tem , xps and trim 96 calculation . it was found that 1 ) a broad absorption band centered at 522 nm was observed in 1 1016 cm - 2 xe + - implanted ysz 离子注入是一种重要的表面改性技术, ysz ( yttria - stabilizedcubiczirconia )和- al _ 2o _ 3是两种性能优良的陶瓷,前者是目前发现的最抗辐照的绝缘体,而后者则是抗辐照最差的绝缘体材料之一,研究重离子注入对其光学性能的影响并以此研究辐照效应,有重要的理论意义和应用价值。