Retrieval of charge mobility from apparent charge packet movements in LDPE thin films
Retrieval of charge mobility from apparent charge packet movements in LDPE thin films
复制标题
从 LDPE 薄膜中表观电荷包运动中检索电荷迁移率
DOI：
10.1209/0295-5075/117/67003
复制
发表时间：
2017-03-01
期刊：
影响因子：
1.8
通讯作者：
An, Zhenlian
中科院分区：
文献类型：
--
作者：
Meng, Jia;Zhang, Yewen;An, Zhenlian
近几十年来，在聚乙烯材料中观察到的电荷包现象已被广泛报道。为了解释其运动，负差分迁移理论是几种已提出的机制中的一个竞争模型。然而，作为该理论的一个关键概念，电荷迁移率与电场之间的关系到目前为止还没有足够精确的报道，这使得用该理论精确描述电荷包的迁移变得困难。在15 kV/mm ~ 50 kV/mm的电场范围内，通过对大量负电荷包的观测，成功地从电荷包的表观运动中获得了负电荷迁移率，揭示了NDM理论与电荷包迁移之间更为密切的关系。利用电荷迁移率反演的电荷包的反算结果与实验数据吻合较好。中国人民解放军版权所有，2017年
The charge packet phenomenon observed in polyethylene materials has been reported extensively during the last decades. To explain its movement, Negative Differential Mobility (NDM) theory is a competitive model among several proposed mechanisms. However, as a key concept of this theory, a sufficiently acute relationship between charge mobility and electric field has never been reported until now, which makes it hard to precisely describe the migration of charge packets with this theory. Based on the substantial negative-charge packet observations with a sufficiently by wide electric field range from 15 kV/mm to 50 kV/mm, the present contribution successfully retrieved the negative-charge mobility from the apparent charge packet movements, which reveals a much closer relationship between the NDM theory and charge packet migrations. Back simulations of charge packets with the retrieved charge mobility offer a good agreement with the experimental data. Copyright (C) EPLA, 2017