Theory of imbalanced electron-hole transport in conjugated polymers

Hsin-Fei Meng*, Yi Shiou Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Electron-hole symmetry in conjugated polymers is found to exist in not only the band structure but also the defect levels caused by structure disorder. The commonly observed higher hole mobility is explained by (1) the compensation of the hole traps by the unintentional background p doping; and (2) the electron traps caused by oxidation. Higher electron mobility in N and O containing conjugated polymers is also explained. Carrier mobility is calculated as a function of doping condition and electric field. Balanced electron-hole transport is shown to be achievable by intentional n doping.

Original languageEnglish
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume70
Issue number11
DOIs
StatePublished - 1 Sep 2004

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