Published October 25, 2021
| Version v1
Publication
Interpretation of trap-limited mobility in space-charge limited current in organic layers with exponential density of traps
Description
Charge carrier transport in disordered organic semiconductors, performed in electronic devices
such as optoelectronic and photovoltaic ones, is usually affected by an exponential distribution of
localized states in the band-gap (traps) under space-charge limited current. In this paper, we
provide a full analysis for the trap-controlled transport of the single-carrier device in the frequency
domain. Trap-limited mobility is interpreted in terms of the classical multiple-trapping picture with
one transport state and the trapping-detrapping dynamics of the exponential density of traps. This
allows us to provide a suitable explanation of the usual experimental features of the mobility
dependence on voltage as along with the capacitance spectra.
Abstract
Ministerio de Economía y Competitividad HOPE CSD2007-00007Abstract
Generalitat Valenciana PROMETEO / 2009/058Additional details
Identifiers
- URL
- https://idus.us.es/handle//11441/126834
- URN
- urn:oai:idus.us.es:11441/126834