摘要
Ｃ２＋离子轰击聚乙烯合成了由Ｃ２６分子六角形密堆积组成的一种新碳晶体对高分辨透射电子显微镜、电子衍射和飞行时间质谱的研究证实，构成晶体的Ｃ２６分子具有笼状富勒烯结构．
A new form solid Carbon has been synthesized consisting of a hexagonal close packing of a26 molecules under energetic C26 ion 2. 4 MeV bombardment of ultra high molecular weight polyethylene. The beam current was about 150 mA and the total dose was 1 X 1016 ions cm-2. The residual gas pressure in the irradiation chamber was 1. 3 X 10 -4 Pa during bombardment High-resolu- tion transmission electron microscopy, electron diffraction, and time-of-flight mass spectroscopy studies of the molecular packing confirm that the C26 molecules have the Caged fullerene structure.
出处
《高能物理与核物理》
CSCD
北大核心
2001年第1期69-73,共5页
High Energy Physics and Nuclear Physics
基金
国家自然科学重点基金!(19735004)
中国科学院基础性研究重点基金!(952-JI-414)
北京大学重离子研究所部分经
关键词
聚乙烯
透射电子显微镜
电子衍射
飞行时间质谱
碳离子轰击
碳晶体
ion (C2+) bombardment, polyethylene, transmission electron microscopy, electron diffraction, TOF-mass spectroscopy
