.png){kind=icon}
返回
Advanced percolation solution for hopping conductivity
.png){kind=icon}
PRE
AI
DOI：10.1103/PhysRevB.87.235204.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Hopping of carriers between localized states dominates charge transport in amorphous organic and inorganic semiconductors. We suggest a comprehensive description of this transport regime based on the percolation approach that allows one to determine not only very pronounced exponential dependencies of the hopping conductivity on material parameters, but also the more weakly dependent pre-exponential factors. The problem of the variable-range hopping (VRH) via sites with exponential energy distribution is mapped onto a universal geometrical problem of percolation via spheres with distributed sizes. An exact solution of the latter problem provides accurate results for the VRH in systems with exponential density-of-states (DOS). Our analytical results are confirmed by straightforward computer simulations and compared to former results present in the literature. We also discuss the case of nearest-neighbor hopping on a lattice, where the pre-exponential factors are provided by the percolation approach for any shape of the DOS.
Keyword:
PRECISE DETERMINATION
CONJUGATED POLYMERS
CHARGE TRANSPORT
MOBILITY
FIELD
MODEL
SEMICONDUCTORS
SYSTEMS
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
3.7
论文数:
15.4W
被引数:
41.0W
机构
引用论文
Hopping conduction in strong electric fields: Negative differential conductivity.png)
PHYSICAL REVIEW B
OAAI
PHYSICAL REVIEW BIF3.7
OAAI分享收藏
查看更多内容