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학술지 Influence of Metal-molecule Contacts on Decay Coefficients and Specific Contact Resistances in Molecular Junctions
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저자
왕건욱, 김태욱, 이효영, 이탁희
발행일
200802
출처
Physical Review B : Condensed Matter and Materials Physics, v.76 no.20, pp.1-7
ISSN
1098-0121
출판사
American Physical Society(APS)
DOI
https://dx.doi.org/10.1103/PhysRevB.76.205320
협약과제
07SB1100, 기능성 분자메모리 소재 개발 및 소자구현 연구, 이효영
초록
The effect of metal-molecule contacts in molecular junctions is studied based on the analysis of a statistically significant number of devices and a proposed multibarrier tunneling (MBT) model, where a metal-molecule-metal junction is divided into three individual barriers: a molecular-chain body and metal-molecule contacts on either side of molecule. Using the MBT model with the statistical analysis, we could derive and distinguish decay coefficients for contact barriers (棺1, 棺2), contact-dependent and contact-independent decay coefficients (棺0 vs 棺body), and specific contact resistances in terms of different molecular length and different natures of metal-molecule contacts. © 2007 The American Physical Society.
KSP 제안 키워드
Contact resistance(73.40.Cg), Dependent and, Metal-molecule contacts, Metal-molecule-metal junctions, Statistical Analysis, molecular junctions