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Jong H. Kim, Sun Woo Yun, Byeong-Kwan An, Yoon Deok Han, Seong-Jun Yoon, Jinsoo Joo and Soo Young Park Remarkable Mobility Increase and Threshold Voltage Reduction in Organic Field-Effect Transistors by Overlaying Discontinuous Nano-Patches of Charge-Transfer Doping Layer on Top of Semiconducting Film Advanced Materials 25

Article first published online: 8 NOV 2012 | DOI: 10.1002/adma.201202789

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An effective strategy for significantly increasing the organic transistor mobility with simultaneous reduction of the threshold voltage utilizing discontinuous nano-patches of charge-transfer doping layer is demonstrated. By overlaying the nano-patches on top of a given semiconducting film, mobility and threshold voltage of p-type pentacene are remarkably improved to 4.52 cm2 V−1s−1 and −0.4 V, and those of n-type Hex-4-TFPTA are also improved to 2.57 cm2 V−1s−1 and 4.1 V.

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