Vibrational mode analysis of β-phase poly(vinylidene fluoride)

被引：46
作者：
Li, JC [1 ]
Wang, CL
Zhong, WL
Zhang, PL
Wang, QH
Webb, JF
机构：
[1] Shandong Univ, State Key Lab Crystal Mat, Sch Phys & Microelect, Jinan 250100, Peoples R China
[2] Nonmet Mat Inst Shandong Province, Jinan 250031, Peoples R China
[3] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2002年 / 81卷 / 12期
关键词：
D O I：
10.1063/1.1507356
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The infrared spectrum of beta-phase poly(vinylidene fluoride) (PVDF) film (30 mum) in the region from 4000 to 400 cm(-1) has been measured. The vibrational frequencies of all-trans chains of PVDF have been calculated from first principles based on a restricted Hartree-Fock self-consistent field method. The calculated result is in good agreement with the experiment. All the vibrational modes were divided into three types, only one of them which is in the region from 1330 to 1020 cm(-1), corresponds to a changing dipole moment, and may be responsible for the spontaneous polarization. (C) 2002 American Institute of Physics.
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页码：2223 / 2225
页数：3
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