| 朗缪尔铁电聚合物薄膜的电学特性:高热释电系数和低介电常数 |
| |
| 引用本文： | 刘浦锋,王建禄,田莉,孟祥建,褚君浩.朗缪尔铁电聚合物薄膜的电学特性:高热释电系数和低介电常数[J].红外与毫米波学报,2009,28(6):401-404. |
| |
| 作者姓名： | 刘浦锋 王建禄 田莉 孟祥建 褚君浩 |
| |
| 作者单位： | 中国科学院上海技术物理研究所,红外物理国家重点实验室,上海,200083 |
| |
| 基金项目： | National Natural Science Foundation of China，，，Natural Science Foundation of Shanghai |
| |
| 摘 要： | 研究了利用朗缪尔技术(LB)生长在柔性基底上的聚偏氟乙烯和三氟乙烯的共聚物(P(VDF-TrFE))薄膜的电学性质.通过测量相对介电常数和热释电系数,发现薄膜在室温1kHz时的优值因子达到1.4 Pa~(-1/2).这表明利用LB技术生长的P(VDF-TrFE)薄膜是热释电探测器的优良候选材料.优值因子的提高可能来源于LB薄膜的良好结晶性和分子链在平面内的高度有序性.
|
| 关 键 词： | 铁电共聚物薄膜 朗缪尔薄膜 优值因子 |
| 收稿时间： | 2009/4/21 |
ELECTRIC CHARACTERISTICS OF LANGMUIR-BLODGETT FERROELECTRIC POLYMERS FILM: HIGH YROELECTRIC COEFFICIENT AND LOW DIELECTRIC CONSTANT |
| |
| LIU Pu-Feng,WANG Jian-Lu,TIAN Li,MENG Xiang-Jian,CHU Jun-Hao.ELECTRIC CHARACTERISTICS OF LANGMUIR-BLODGETT FERROELECTRIC POLYMERS FILM: HIGH YROELECTRIC COEFFICIENT AND LOW DIELECTRIC CONSTANT[J].Journal of Infrared and Millimeter Waves,2009,28(6):401-404. |
| |
| Authors: | LIU Pu-Feng WANG Jian-Lu TIAN Li MENG Xiang-Jian CHU Jun-Hao |
| |
| Abstract: | The relative dielectric constant ε′ and pyroelectric coefficient p of ferroelectric poly(vinylidene fluoride-trifluoroethylene) polymers P(VDF-TrFE) films grown on flexible substrates by Langmuir-Blodgett (LB) technique were measured, and room temperature figure of merit was obtained as 1.4 Pa^-1/2 at 1kHz. The result implies that LB P(VDF-TrFE) copolymer films are potential materials for pyroelectric detectors. This enhancement of figure of merit could be attributed to good crystallinity and highly planar ordered molecular chains in the LB films. |
| |
| Keywords: | ferroelectric copolymer film Langmuir-Blodgett film figure of merit |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《红外与毫米波学报》浏览原始摘要信息 |
|
点击此处可从《红外与毫米波学报》下载全文 |
