Analytical Challenges in Molecular Electronics

McCreery, Richard L.

doi:10.1021/ac069407y

Cited by 44 publications

(47 citation statements)

References 37 publications

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“…There are also clear cases of structural control of electronic conductance for mesoscale and ensemble junctions (e.g., see Fig. 7,8,9,12,14,16,and 17). In some cases, the observed conductance of an ensemble junction varies by orders of magnitude when the only known structural change is the thickness or identity of the molecular layer.…”

Section: Where Are We Now?mentioning

confidence: 96%

Progress with Molecular Electronic Junctions: Meeting Experimental Challenges in Design and Fabrication

2009

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Molecular electronics seeks to incorporate molecular components as functional elements in electronic devices. There are numerous strategies reported to date for the fabrication, design, and characterization of such devices, but a broadly accepted example showing structure-dependent conductance behavior has not yet emerged. This progress report focuses on experimental methods for making both single-molecule and ensemble molecular junctions, and highlights key results from these efforts. Based on some general objectives of the field, particular experiments are presented to show progress in several important areas, and also to define those areas that still need attention. Some of the variable behavior of ostensibly similar junctions reported in the literature is attributable to differences in the way the junctions are fabricated. These differences are due, in part, to the multitude of methods for supporting the molecular layer on the substrate, including methods that utilize physical adsorption and covalent bonds, and to the numerous strategies for making top contacts. After discussing recent experimental progress in molecular electronics, an assessment of the current state of the field is presented, along with a proposed road map that can be used to assess progress in the future.

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Section: Where Are We Now?mentioning

confidence: 96%

Progress with Molecular Electronic Junctions: Meeting Experimental Challenges in Design and Fabrication

2009

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“…Spectroscopic methods such as X-ray spectroscopy [16] and vibrational spectroscopy [17,18] have been applied in the 1960s to characterize surface reactions. In particular, IR and Raman spectroscopies have been used for in situ analyses although the large dielectric constants of the aqueous solvents limit the use of IR spectroscopy.…”

Section: Introductionmentioning

confidence: 99%

Growth of electrolytic copper dendrites. I: Current transients and optical observation

Devos

Gabrielli

Beitone³

et al. 2007

Journal of Electroanalytical Chemistry

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“…(2) Similarly to [5], the increased concentration of oxygen at the Au/ H 2 Pc interface relative to the film bulk was found ( Fig. 4) (abrupt rise of the oxygen signal at the right interface 'H 2 Pc/substrate' is because the substrate material is oxide).…”

Section: Depth Profiling: Differences In Two Interfacesmentioning

confidence: 62%

“…Recently, secondary ion mass spectrometry (SIMS) with depth profiling was shown to be successful for analysis of inner interfaces in hybrid and organic (hetero-)structures with high resolution [4][5][6][7]. In comparison with profiling tool in X-ray photoelectron spectroscopy, which is also frequently used for destructive analysis of interfaces, SIMS profiling can more adequately be adjusted for concrete organic material.…”

Section: Introductionmentioning

confidence: 99%