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KIEE international transactions on electrophysics and applications v.5C no.3, 2005년, pp.115 - 118   피인용횟수: 1

A Study on the Current-Voltage Characteristics of Self-Assembled Organic Molecules by using STM

Kim Seung-Un    (Dept. of Electrical Engineering, Dong-A University   ); Shin Hoon-Kyu    (Dept. of Electrical Engineering, Dong-A University   ); Kwon Young-Soo    (Dept. of Electrical Engineering, Dong-A University  );
  • 초록

    Currently, molecular devices are reported utilizing active self-assembled monolayers (SAMs) containing the nitro group as the active component, which has active redox centers [1]. SAMs are ordered molecular structures formed by the adsorption of an active surfactant on a solid surface. The molecules will be spontaneously oriented toward the substrate surface and form an energetically favorable ordered layer. During this process, the surface-active head group of the molecule chemically reacts with and chemisorbs onto the substrate In this paper, the electrical properties of the 4'4- di(ethynylphenyl)-2'-nitro-1-benzenethiolate was confirmed. This material is well known as a conducting molecule having possible application to molecular level negative differential resistance (NDR) device. To deposit the self-assembly monolayers onto the gold electrode, the prefabricated Au(1 l l) substrates were immersed into 0.5[mM/l] self-assembly molecule in THF solution. Then, the electrical properties and surface morphologies of 4' 4-di(ethynylphenyl)-2' -nitro-1-benzenethiolate were measured by using the ultra-high vacuum scanning tunneling microscopy (UHV-STM).


  • 주제어

    self-assembled monolayers .   NDR .   UHV-STM.  

  • 참고문헌 (13)

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  • 이 논문을 인용한 문헌 (1)

    1. Lee Nam-Suk ; Kwon Young-Soo 2006. "Study on Electrical Characteristic of Self-assembled Nitro Molecule Onto Au(111) Substrate by Using STM/STS" 전기학회논문지. The transactions of the Korean Institute of Electrical Engineers. C/ C, 전기물성·응용부문, 55(1): 16~19     

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