...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chinese science bulletin >Structural transitions in C_(60) films on high temperature annealing
【24h】

Structural transitions in C_(60) films on high temperature annealing

机译：高温退火下C_（60）薄膜的结构转变

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The discovery of fullerene C_(60) and subsequent development of carbon arc method for producing macroscopic quantities of this material, have aroused much attention to this third form of carbon. The earliest analysis by X-ray diffraction suggested that crystalline C_(60) had a hexaganal-close-packed (hcp) structure. So far, there have been many reports on the structures of C_(60) powder, single crystals and films, and the results show that the C_(60) molecules are located on the sites of a face-centred-cubic (fcc) lattice at room temperature. There exists a first-order phase transition from fcc phase to sc phase with critical transition temperature of 249 K. Recently, the coexistence of fcc phase and hcp phase in the C_(60) films has been found, andhcp C_(60) single crystals have been successfully grown. However, the effects of deposition conditions on the structures of C_(60) films and the structural changes by exposing the film to various experimental fators are seldom studied. In this note we report our results on the X-ray diffractions on C_(60) films, and discuss the structural transitions caused by high temperature annealing.
机译：富勒烯C_（60）的发现以及随后用于生产这种材料的宏观量的碳弧方法的发展引起了人们对这种第三种形式的碳的关注。最早的X射线衍射分析表明，晶体C_（60）具有六方密堆积（hcp）结构。到目前为止，关于C_（60）粉末，单晶和薄膜的结构已有许多报道，结果表明C_（60）分子位于面心立方（fcc）晶格的位置在室温下。存在从fcc相到sc相的一阶相变，临界转变温度为249K。最近，在C_（60）膜中发现了fcc相和hcp相共存，并且hcp C_（60）单晶已经成功成长。然而，很少研究沉积条件对C_（60）膜结构的影响以及通过将膜暴露于各种实验性因素而引起的结构变化。在本说明中，我们报告了在C_（60）薄膜上进行X射线衍射的结果，并讨论了由高温退火引起的结构转变。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号