Comparison of Change in Surface Structure of POPC Surfactant Bilayer on Si Substrate with MIES & UPS
Modern Chemistry
Volume 3, Issue 3, October 2015, Pages: 31-37
Received: Sep. 28, 2015; Accepted: Oct. 13, 2015; Published: Oct. 24, 2015
Views 4011      Downloads 119
Muthuraman Namasivayam, Center of Advance Study in Crystallography and Biophysics, University of Madras, Chennai, India
Article Tools
Follow on us
Nanoparticles in the recent times have drawn more attention in the field of electronics and in particular their property of self assembly over another material surface makes them a suitable component in the development of Nanoscale materials. Self organization property of Nanoparticles has opened up whole new possibilities in the construction of 2D nanostructures through deposition of organized bilayer of surfactant called black films on a solid substrate. Newton Black Films which are much thinner than a Common Black Films attracted more interests recently with their ability to form more complex structures. In this article, Newton Black films of POPC (1-palmitoyl-2-oleoyl-phosphaticylcholine) surfactant is formed and deposited on a solid substrate after a certain amount of time and their surface structure were analyzed with time. The experiment is conducted at three different drainage states; un-dried, un-dried with a salt present, and dried; their results are compared with MIES and UPS spectrum. Where, MIES spectra being more sensitive towards surface modification show that the structure becomes more ordered with drainage time and the process gets even faster with the addition of a salt. Comparatively, in MIES the presence of new elements is more clearly observed with the variation in their energy spectra on the drained film substrate than in the un-drained substrate owing to the fact that the drained film has more patterned outermost layer comprised with the new elements.
Nanoparticles, Self Assembly, Newton Black Films, POPC Surfactant, Metastable Induced Electron Spectroscopy, Ultraviolet Photoelectron Spectroscopy
To cite this article
Muthuraman Namasivayam, Comparison of Change in Surface Structure of POPC Surfactant Bilayer on Si Substrate with MIES & UPS, Modern Chemistry. Vol. 3, No. 3, 2015, pp. 31-37. doi: 10.11648/
Copyright © 2015 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
G. Andreatta, J.Y.J Wang, F.K. Lee, A. Polidori, P. Tong, B. Pucci, and J. Benattar (2008a), Molecular Transfer of Surfactant Bilayers: Widening the Range of Substrates; Langmuir, 24, 6072-6078.
C. Coquelard, P. Jegou, and J. Benattar (2011), Role of Substrate Wettability in the “Bubble Deposition Method” Applied to the CeVO4 Nanowire Films; Langmuir 10/1021, ACS Publication.
C.S.S. Kumar (2010), Nanostructured Thin Films and Surfaces; Wiley-VCH 1 Edition, Germany.
G. Andreattaa, J. Benattara, R. Petkovaa, J.Y.J. Wang, P. Tong, A. Polidori , B. Pucci (2008b), Deposition of organized surfactant films on solid substrates; Elsevier 321, 211–217.
J. Benattar, M. Nedyalkov, F.K. Lee, and O. K. C. Tsui (2006); Adhesion of a Free-Standing Newton Black Film onto a Solid Substrate, Angew. Chem. Int. Ed. 45, 4186 –4188.
C. Stubenrauch, and R. Klitzing (2003), Disjoining pressure in thin liquid foam and emulsion films—new concepts and perspectives; J. Phys.: Condensed Matter 15, R1197–R1232.
F. Bresme and E. Artacho (2010), Electronic structure computations of Newton Black Films; J. Mater. Chem., 20, 10351-10358.
Zhe Shen and Huai Sun (2013), Stability of Newton Black Films Under Mechanical Stretch – A Molecular Dynamics Study; Langmuir, 29 (36), pp 11300–11309.
A. Borodin, O. Ho fft , S. Bahr, V. Kempter, A. Allouche (2005), Application of the metastable impact electron spectroscopy (MIES), in combination with UPS and TPD, to the study of processes at ice surfaces; Nuclear Instruments and Methods in Physics Research B 232, 79–87.
G. Lilienkamp, Han Wei, W. Maus-Friedrichs, V. Kempter, H. Marbach, S. Gunther, Y. Suchorski (2003), Metastable impact electron emission microscopy of the catalytic H2 oxidation on Rh (110); Surface Science 532, 132–136.
M. Heber and W. Grünert (2000), Application of Ultraviolet Photoelectron Spectroscopy in the Surface Characterization of Polycrystalline Oxide Catalysts. 2. Depth Variation of the Reduction Degree in the Surface Region of Partially Reduced V2O5; J. Phys. Chem. B, 104 (22), 5288–5297.
G. Andersson, H. Morgner (1998), Impact collision ion scattering spectroscopy (ICISS) and neutral impact collision ion scattering spectroscopy (NICISS) at surfaces of organic liquids; Surface Science 405, 138–151.
G. Andersson, H. Morgner (1999), Determining the stopping power of low energy helium in alkanethiolates with Neutral Impact Collision Ion Scattering Spectroscopy (NICISS); Nuclear Instruments and Methods in Physics Research B 155, 357-368.
J.A. Stultz, A. Kolmakov, X. Lai, Y.D. Kim, and D. W. Goodman (2001), Surface defects on MgO thin films: Their detection using metastable impact electron spectroscopy and interaction with probe molecules; Mat. Res. Soc. Symp. Proc. Vol. 648. P 9.5.
M. Brückner, B. Heinz and H. Morgner (1994), Molecular orientation in organic monolayers probed by UPS and MIES (metastable induced electron spectroscopy); Surface Science, Volume 319, Issue 3, 370-380.
Meng Chen, Xiancai Lu, Xiandong Liu, Qingfeng Hou, Youyi Zhu and Huiqun Zhou (2015), Slow dynamics of water confined in Newton black films; Phys.Chem.Chem.Phys.,17, 19183.
S. Dieckhoff, D. Ochs, J. Gunster, V. Kempter (1999), Metastable impact electron spectroscopy (MIES) study of chemical vapor deposited (CVD) diamond films; Surface Science 423, 53–60.
S. Kaya, M. Baron, D. Stacchiola, J. Weissenrieder, S. Shaikhutdinov, T.K. Todorova, M. Sierka, J. Sauer, H.-J. Freund (2007), On the geometrical and electronic structure of an ultra-thin crystalline silica film grown on Mo(112); Surface Science 601, 4849–4861.
S. Wendt, Y.D. Kim, D.W. Goodman (2003), Identification of defect sites on oxide surfaces by metastable impact electron spectroscopy; Progress in Surface Science 10/1016.
Science Publishing Group
1 Rockefeller Plaza,
10th and 11th Floors,
New York, NY 10020
Tel: (001)347-983-5186