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Trapping effect of metal nanoparticle mono- and multilayer in the organic field-effect transistor
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10.1063/1.3567916
/content/aip/journal/jap/109/6/10.1063/1.3567916
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/6/10.1063/1.3567916
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) (a) Schematic view of the structure of top-contact organic field-effect transistor (OFET) with Ag NPs SAM on gate insulator and (b) sketch of single Ag NP encapsulated in the organic monolayer envelope. Morphology of pentacene films deposited on (c) bare gate insulator () and (d) on Ag NPs SAM.

Image of FIG. 2.
FIG. 2.

(Color online) Transfer characteristics of OFET without and with Ag NPs SAM for channel length  = 60 . The drain-source voltage of − 100 V was kept during the scan.

Image of FIG. 3.
FIG. 3.

Output characteristics of OFET (a) without and (b) with Ag NPs SAM for channel length  = 60 . Voltage varies from 0 to − 100 V with a step of 20 V.

Image of FIG. 4.
FIG. 4.

(Color online) (a) The contact resistance evaluation by TLM technique and (b) the contact resistance as a function of applied voltage for an OFET without and with Ag NPs SAM. Solid lines illustrate fit by the Schottky injection model, Eq. (3).

Image of FIG. 5.
FIG. 5.

Electric field profile of OFET (a) without and (b) with Ag NPs SAM for channel length  = 60 .

Image of FIG. 6.
FIG. 6.

(Color online) Optical absorbance spectra for different number of Ag NPs SAM layers. Inset represents the plasmon absorbance dependence on the number of SAM layers, solid line stands for linear fit.

Image of FIG. 7.
FIG. 7.

(Color online) (a) Transfer characteristics for OFETs with different number of Ag NPs SAM layers ( = 60 ).

Image of FIG. 8.
FIG. 8.

Output characteristics for OFETs with (a) 0, (b) 2, and (c) 4 layers of Ag NPs SAM. The gate-source voltage varies from 0 to − 100 V with step of 20 V.

Image of FIG. 9.
FIG. 9.

(Color online) The mobility, contact resistance and saturated drain-source current as a function of the number of Ag NPs SAM layers. Solid lines stand for linear fit in semilog scale.

Image of FIG. 10.
FIG. 10.

(Color online) The (a) sketch of pentacene/SiO2 interface modified by silver nanoparticles (Ag NPs) with average NP separation of and (b) the distribution of potential V along the interface, represents the potential barrier.

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/content/aip/journal/jap/109/6/10.1063/1.3567916
2011-03-23
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Trapping effect of metal nanoparticle mono- and multilayer in the organic field-effect transistor
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/6/10.1063/1.3567916
10.1063/1.3567916
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