Charge transport and memristive properties of graphene quantum dots embedded in poly(3-hexylthiophene) matrix
We show that graphene quantum dots (GQD) embedded in a semiconducting poly(3-hexylthiophene) polymeric matrix act as charge trapping nanomaterials. In plane current-voltage (I-V) measurements of thin films realized from this nanocomposite deposited on gold interdigitated electrodes revealed that the...
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| Veröffentlicht in: | Applied physics letters 2014-08, Vol.105 (8) |
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| container_title | Applied physics letters |
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| creator | Cosmin Obreja, Alexandru Cristea, Dana Mihalache, Iuliana Radoi, Antonio Gavrila, Raluca Comanescu, Florin Kusko, Cristian |
| description | We show that graphene quantum dots (GQD) embedded in a semiconducting poly(3-hexylthiophene) polymeric matrix act as charge trapping nanomaterials. In plane current-voltage (I-V) measurements of thin films realized from this nanocomposite deposited on gold interdigitated electrodes revealed that the GQD enhanced dramatically the hole transport. I-V characteristics exhibited a strong nonlinear behavior and a pinched hysteresis loop, a signature of a memristive response. The transport properties of this nanocomposite were explained in terms of a trap controlled space charge limited current mechanism. |
| doi_str_mv | 10.1063/1.4893919 |
| format | Article |
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In plane current-voltage (I-V) measurements of thin films realized from this nanocomposite deposited on gold interdigitated electrodes revealed that the GQD enhanced dramatically the hole transport. I-V characteristics exhibited a strong nonlinear behavior and a pinched hysteresis loop, a signature of a memristive response. 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In plane current-voltage (I-V) measurements of thin films realized from this nanocomposite deposited on gold interdigitated electrodes revealed that the GQD enhanced dramatically the hole transport. I-V characteristics exhibited a strong nonlinear behavior and a pinched hysteresis loop, a signature of a memristive response. The transport properties of this nanocomposite were explained in terms of a trap controlled space charge limited current mechanism.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.4893919</doi></addata></record> |
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| ispartof | Applied physics letters, 2014-08, Vol.105 (8) |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Applied physics CHARGE TRANSPORT CURRENTS ELECTRIC CONDUCTIVITY ELECTRIC POTENTIAL GOLD GRAPHENE HYSTERESIS Hysteresis loops MATRIX MATERIALS NANOCOMPOSITES Nanomaterials NANOSCIENCE AND NANOTECHNOLOGY NONLINEAR PROBLEMS QUANTUM DOTS SPACE CHARGE THIN FILMS TRAPPING |
| title | Charge transport and memristive properties of graphene quantum dots embedded in poly(3-hexylthiophene) matrix |
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