Compact modeling of the effects of illumination on the contact region of organic phototransistors
| Autor: | J.A. Jiménez-Tejada, C. Jiménez, A. Romero, M.J. Deen, Jesús González, Pilar Lopez-Varo |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Work (thermodynamics)
Materials science Phototransistors Contact effects 02 engineering and technology Photovoltaic effect 010402 general chemistry 01 natural sciences Device parameters law.invention Biomaterials Many-objective optimization Thin-film transistor law Materials Chemistry Electrical and Electronic Engineering business.industry Exciton dissociation Photoconductivity Transistor Photovoltaic system Modeling Contact region General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Electronic Optical and Magnetic Materials Photoconductive effect Optoelectronics 0210 nano-technology business Multi-objective evolutionary algorithms |
| Zdroj: | Digibug. Repositorio Institucional de la Universidad de Granada instname |
| Popis: | Please cite this article as: A. Romero, C. Jiménez, J. González, P. López-Varo, M.J. Deen, J.A. Jiménez-Tejada, Compact modeling of the effects of illumination on the contact region of organic phototransistors, Organic Electronics, (2019), 70, 113-121. A good modeling of degrading effects in an electronic device, such as the contact region of organic phototransistors (OPTs), can be favorably used to better describe and optimize the performance of the whole device. Furthermore, a proper design of the contacts can enhance the exciton dissociation and the extraction of photogenerated charge in the device. In this work, a compact model for OPTs is developed. This model is valid for all the operation regimes of the transistors. It includes a model for the contact region of the device that incorporates the effects of illumination. The compact model and the contact region model are validated with published experimental data from several OPTs under different illumination conditions. The tool used to validate the model is an evolutionary parameter extraction procedure developed in a previous work. The results show that both photoconductive and photovoltaic effects impact the intrinsic region of the transistor, as well as the electrical behavior of the contact region. The parameters used in the contact region model are linked to these photovoltaic and photoconductive effects. This work was supported by projects MAT2016-76892-C3-3-R and TIN2015-67020-P funded by the Spanish Government and European Regional Development Funds (ERDF) and by “Beca de Iniciación a la Investigación para estudiantes de Grado” given by the University of Granada. |
| Databáze: | OpenAIRE |
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