期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 21, 期 9, 页码 2924-2931出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0jm02940h
关键词
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资金
- ESF
- EC [PITN-GA-2009-238177, 212311]
- NanoSciEra-SENSORS
- Regione Emilia-Romagna PRIITT Prominer Net-Lab
- International Center for Frontier Research in Chemistry (FRC, Strasbourg)
Blends of reduced graphene oxide (RGO) and poly(3-hexylthiophene) (P3HT) are used as the active layer of field-effect transistors (FETs). By using sequential deposition of the two components, the density of RGO sheets can be tuned linearly, thereby modulating their contribution to the charge transport in the transistors, and the onset of charge percolation. The surface potential of RGO, P3HT and source-drain contacts is measured on the nanometric scale with Kelvin Probe Force Microscopy (KPFM), and correlated with the macroscopic performance of the FETs. KPFM is also used to monitor the potential decay along the channel in the working FETs.
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