Replacing Ag TS SCH 2 -R with Ag TS O 2 C-R in EGaIn-Based Tunneling Junctions Does Not Significantly Change Rates of Charge Transport

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Replacing Ag TS SCH 2 -R with Ag TS O 2 C-R in EGaIn-Based Tunneling Junctions Does Not Significantly Change Rates of Charge Transport

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Title: Replacing Ag TS SCH 2 -R with Ag TS O 2 C-R in EGaIn-Based Tunneling Junctions Does Not Significantly Change Rates of Charge Transport
Author: Liao, Kung-ching; Yoon, Hyo Jae; Bowers, Carleen Morris; Simeone, Felice C.; Whitesides, George McClelland

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Citation: Liao, Kung-Ching, Hyo Jae Yoon, Carleen M. Bowers, Felice C. Simeone, and George M. Whitesides. 2014. “Replacing Ag TS SCH 2 -R with Ag TS O 2 C-R in EGaIn-Based Tunneling Junctions Does Not Significantly Change Rates of Charge Transport.” Angewandte Chemie International Edition 53, no. 15: 3889–3893.
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Abstract: This paper compares rates of charge transport by tunneling across junctions with the structures AgTSX(CH2)2nCH3 //Ga2O3 /EGaIn (n=1–8 and X= [BOND]SCH2[BOND] and [BOND]O2C[BOND]); here AgTS is template-stripped silver, and EGaIn is the eutectic alloy of gallium and indium. Its objective was to compare the tunneling decay coefficient (β, Å−1) and the injection current (J0, A cm−2) of the junctions comprising SAMs of n-alkanethiolates and n-alkanoates. Replacing AgTSSCH2-R with AgTSO2C-R (R=alkyl chains) had no significant influence on J0 (ca. 3×103 A cm−2) or β (0.75–0.79 Å−1)—an indication that such changes (both structural and electronic) in the AgTSXR interface do not influence the rate of charge transport. A comparison of junctions comprising oligo(phenylene)carboxylates and n-alkanoates showed, as expected, that β for aliphatic (0.79 Å−1) and aromatic (0.60 Å−1) SAMs differed significantly.
Published Version: doi:10.1002/anie.201308472
Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:17219053
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