Article
Interpretation of trap-limited mobility in space-charge limited current in organic layers with exponential density of traps
Author/s | Hinojo Montero, José María
Bisquert, Juan |
Department | Universidad de Sevilla. Departamento de Ingeniería Electrónica |
Publication Date | 2011-08 |
Deposit Date | 2021-10-25 |
Published in |
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Abstract | 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 ... 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. |
Funding agencies | Ministerio de Economía y Competitividad (MINECO). España Generalitat Valenciana |
Project ID. | HOPE CSD2007-00007
PROMETEO / 2009/058 |
Citation | Hinojo Montero, J.M. y Bisquert, J. (2011). Interpretation of trap-limited mobility in space-charge limited current in organic layers with exponential density of traps. Journal of Applied Physics, 110 (4), 043705-1-043705-6. |
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