Photon-assisted synthesis of C60 polymers by laser irradiation
Photon-assisted synthesis of C60 polymers by laser irradiation
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激光照射光子辅助合成 C60 聚合物
DOI：
10.1016/j.apsusc.2007.02.155
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发表时间：
2007
影响因子：
6.7
通讯作者：
S. Ando
中科院分区：
文献类型：
--
作者：
H. Yamamoto;N. Iwata;Ryoji Hashimoto;S. Ando
用自由电子激光（FEL）的高次谐波在真空中辐照压缩的C60和C60与I2的混合物表面。自由电子激光基本宏脉冲的功率和频率约为0.05W。0.5mJ/pulse和2 Hz。辐照时间为120- 180 min。用典型波长450或345 nm辐照自由电子激光后，C_（60）的Ag（2）振动模式的拉曼峰向低能侧移动。混合粉末样品的拉曼峰位移大于纯C60。此外，晶体结构的变化表明，各种分子间的组合发生辐照。这些结果表明，激光辐照促进了C60的三维聚合，并产生了碘原子对C60分子的光子辅助空穴掺杂效应。
The harmonics of a free electron laser (FEL) were irradiated in vacuum to surfaces of compressed C60and a mixture of C60and I2. The power and frequency of the fundamental FEL macro-pulse were ca. 0.5mJ/pulse and 2Hz, respectively. The irradiation time was 120–180min. After irradiation of FEL with a typical wavelength of 450 or 345nm, the Raman peak of Ag(2)-derived vibration mode of C60shifted to the lower-energy side. The Raman peak shift of the mixture powder sample was greater than that of pure C60. Furthermore, changes of the crystalline structure indicated that various intermolecular combinations occurred by irradiation. These results strongly suggest that three-dimensional polymerization of C60was promoted by laser irradiation and the effect of photon-assisted hole-doping from iodine atoms to C60molecules.
DOI：
10.1016/b978-0-12-221820-0.x5000-x
发表时间：
1996
期刊：
--
影响因子：
--
作者：
L. B. Ebert
通讯作者：
L. B. Ebert
影响因子：
1.5
作者：
H. Nakayama;H. Katayama‐Yoshida
通讯作者：
H. Nakayama;H. Katayama‐Yoshida