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Electrochemical Properties of Langmuir-Blodgett(LB) Film of Alkyl Bromides

브롬화 알킬화합물 LB막의 전기화학적 특성

  • Park, Keun-Ho (Dept. of Chemical Engineering, Changwon National University) ;
  • Son, Tae-Chul (Dept. of Chemical Engineering, Changwon National University) ;
  • Min, Chang-Hun (Dept. of Chemical Engineering, Changwon National University)
  • 박근호 (창원대학교 화공시스템공학과) ;
  • 손태철 (창원대학교 화공시스템공학과) ;
  • 민창훈 (창원대학교 화공시스템공학과)
  • Published : 2009.12.31

Abstract

We carried out this experiment to observe an electrochemical properties for LB films of alkyl compounds by the cyclic voltammetry. Alkyl bromides was deposited by using the Langmuir- Blodgett method on the ITO glass. We measured to an electrochemical measurement by using cyclic voltammetry with a three-electrode system(an Ag/AgCl reference electrode, a platinum wire counter electrode and LB film-coated ITO working electrode) in 0.5, 1.0, 1.5 and 2.0 N $NaClO_4$ solution. A measuring range was reduced from initial potential to -1350 mV, continuously oxidized to 1650 mV. The scan rate were 100 mV/s. As a result, an electrochemical properties of the LB films of alkyl bromides appeared irreversible process caused by only the oxidation current from the cyclic voltammogram. The diffusivity(D) effect of LB films decreased with increasing of alkyl compounds amount.

Keywords

References

  1. F. T. Hong, Molecular Electronics : Biosensors and Biocomputers, Plenum Press, New York, (1989)
  2. G. G. Roberts, Langmuir-Blodgett Films, Contemporary physics, 25, 109 (1984) https://doi.org/10.1080/00107518408230324
  3. M. Iwamoto and T. Kubota, Electrical transport and electrostatic properties of polyimide Langmuir-Blodgett films, Synthetic Metals, 71, 1981 (1995) https://doi.org/10.1016/0379-6779(94)03133-Q
  4. H. Rohrer, Limits and Pssibiltied of Miniaturzation, Jpn. J. Appl. Phys., 32, 1335 (1993) https://doi.org/10.1143/JJAP.32.1335
  5. S. Yokoyama, Kakimoto M. and Imai Y., Preparation and In-Plane Anisotropic Photobleaching Properties of Polyimide Langmuir-Blodgett Film Having a Photoresponsive p-Nitrobenzene Pendant Group, Thin Solid Films, 273, 252 (1996)
  6. M. A. Reed and J. M. Tour, Computing with Molecules, Scientific American, 282, 86 (2000)
  7. J. R. Heath et al. Molecular Electronics, Physics Today, 56, 42 (2003) https://doi.org/10.1063/1.1570771
  8. K. H. Park, Electrochemical Properties of Langmuir-Blodgett(LB) Films mixed with 4 -O ctyl-4 ' -( 5 -carbox ypentamethyleneoxy) azobenzene (8A5H) and Phospholiphid, J. Kor. oil Chem. Soc., 13(1), 75 (1996)
  9. N. S Lee, H. K. Shin, J. S. Chang, and Y. S. Kwon, A study on the current-voltage properies of dipyridinium molecule using scanning tunneling microscopy, J. KIEEME, 18(7), 622 (2005) https://doi.org/10.4313/JKEM.2005.18.7.622
  10. M. H. Bae, K. H. Song, T. G. Park, and K. H. Park, Dynamic behaviors of externally-stimulated monolayers on the water surface, J. KIEEME, 13(4), 318, (2000)
  11. X. Zhai, and J. M. Kleijn, Molecular structure of dipalmitoyl phosphatidylcholine Langmuir-Blodgett monolayers studied by atomic force microscopy, Thin Solid Films, 304 327 (1997) https://doi.org/10.1016/S0040-6090(97)00185-5
  12. A. Pinazo, M. R. Infante, S. Y. Park, E. I. Franses, Surface tension behavier of aqueous dilauroylphosphatidylcholine (DLPC), Colloids and Surfaces B: Biointerfaces, 8, 1 (1996) https://doi.org/10.1016/S0927-7765(96)01307-0
  13. S. H$\acute{e}$non and J. Meunier, Ellipsometry and reflectivity at the Brewster angle: tools to study the bending elasticity and phase transitions in monolayers at liquid interfaces, Thin Solid Films. 234, 471 (1994) https://doi.org/10.1016/0040-6090(93)90310-L