Pressure dependence of the resistance in polyaniline and its derivatives at room temperature

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	Pressure dependence of the resistance in polyaniline and its derivatives at room temperature
	Z. X. Bao; C. X. Liu; P. K. Kahol; N. J. Pinto
	1999
发表期刊	Synthetic Metals
ISSN	0379-6779
卷号	106 期号:2 页码:107-110
摘要	We report on our high pressure measurements on powdered, doped samples of polyaniline (PAN), poly-o-toluidine (POT), poly-o-ethylaniline (OPEA) and poly-o-propylaniline (OPPA) at roam temperature using a diamond anvil cell up to 22 GPa. Since the primary influence of pressure is sample compression, application of pressure leads to an initial decrease in the resistance (enhanced conductivity) indicating greater interchain coherence due to reduced interchain separation. The resistance of our samples as a function of pressure depends on the interplay between increased interchain transfer due to increased pressure and decreased transfer rate due to smaller localization length. Higher values of the resistance at ambient pressure as the substituent group along the main chain PAN backbone gets larger is consistent with measurements of de conductivity on the same samples. (C) 1999 Elsevier Science S.A. All rights reserved.
部门归属	univ puerto rico, dept phys & elect, humacao, pr 00791 usa. chinese acad sci, inst phys, beijing 100080, peoples r china. chinese acad sci, int ctr mat sci, shenyang 110015, peoples r china. wichita state univ, dept phys, wichita, ks 67260 usa.;pinto, nj (reprint author), univ puerto rico, dept phys & elect, humacao, pr 00791 usa
关键词	Polyaniline Resistance Pressure Dependence Electrical-conductivity Charge-transport Localization Poly(O-toluidine) Regime Films State
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/37306
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. X. Bao,C. X. Liu,P. K. Kahol,et al. Pressure dependence of the resistance in polyaniline and its derivatives at room temperature[J]. Synthetic Metals,1999,106(2):107-110.
APA	Z. X. Bao,C. X. Liu,P. K. Kahol,&N. J. Pinto.(1999).Pressure dependence of the resistance in polyaniline and its derivatives at room temperature.Synthetic Metals,106(2),107-110.
MLA	Z. X. Bao,et al."Pressure dependence of the resistance in polyaniline and its derivatives at room temperature".Synthetic Metals 106.2(1999):107-110.