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Variable Temperature Capacitance-Voltage Measurements to Investigate the Density of Localized Trapping Levels in Organic Semiconductors
Published online by Cambridge University Press: 26 February 2011
Abstract
We have approximated the tail of the Gaussian distribution of states of organic semiconduc-tors with an exponential function. We have used this approach to calculate the carrier concentra-tion in organic materials, and subsequently the charge distribution in the accumulation region of a field effect device and the space-charge capacitance in accumulation mode. Small signal high frequency capacitance-voltage measurements performed at various temperatures show good agreement with this model and the characteristic temperature of the exponential function has been estimated from these measurements based on the theory developed.
Keywords
- Type
- Research Article
- Information
- MRS Online Proceedings Library (OPL) , Volume 905: Symposium DD – Materials for Transparent Electronics , 2005 , 0905-DD06-02
- Copyright
- Copyright © Materials Research Society 2006