Charge motion and trapping in insulators: surface and bulk effects

Author

Wintle, H.J.

Author_Institution

Dept. of Phys., Queen´´s Univ., Kingston, Ont., Canada

Volume

6

Issue

1

fYear

1999

fDate

2/1/1999 12:00:00 AM

Firstpage

1

Lastpage

10

Abstract

The electrical currents that flow in and on insulators are small, but they may be important in applications and they may indicate the mechanism of carrier motion. The processes which come into play include mobility and ionization, trapping and detrapping, and injection and blocking. Some of these phenomena are intrinsic to the material, while others depend on the amount and nature of the impurities. This paper concentrates on problems in data analysis and on the interpretation of charge measurements in the bulk and on surfaces. Some materials and some processes are well understood, while others remain obscure, particularly the identities of carriers and traps. A considerable investment of time and money will be required to solve these problems

Keywords

carrier mobility; electron traps; electron-hole recombination; insulating materials; space-charge-limited conduction; surface conductivity; bulk effects; carrier motion; charge measurements; charge motion; data analysis; detrapping; space charge effects; surface effects; trapping; Conductivity; Current density; Data analysis; Data mining; Dielectrics; Equations; Insulation; Solids; Space charge; Voltage;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

1070-9878

Type

jour

DOI

10.1109/94.752003

Filename

752003