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Dr Chunghong Lei

Research Fellow

Qualifications: MSc theoretical physics; PhD AFM and conducting polymer

Email:
Phone: Work: 01483 68 9312
Room no: 15 AB 03

Further information

Publications

Journal articles

  • Markoulidis F, Lei C, Lekakou C. (2012) 'Fabrication of high-performance supercapacitors based on transversely oriented carbon nanotubes'. Applied Physics A: Materials Science and Processing, , pp. 1-10.
    doi: 10.1007/s00339-012-7471-8
  • Luo L, Jia W, Liu J, Huang H, Lei C. (2011) 'Tunable enhanced transmission of terahertz radiation through an array of subwavelength holes perforated on a semiconductor film by applying external static magnetic fields'. Physics Letters, Section A: General, Atomic and Solid State Physics, 375 (36), pp. 3213-3217.
    doi: 10.1016/j.physleta.2011.07.014
  • Lei C, Wilson P, Lekakou C. (2011) 'Effect of poly(3,4-ethylenedioxythiophene) (PEDOT) in carbon-based composite electrodes for electrochemical supercapacitors'. Journal of Power Sources, 196 (18), pp. 7823-7827.
    doi: 10.1016/j.jpowsour.2011.03.070
    Full text is available at: http://epubs.surrey.ac.uk/713749/
  • Liedtke A, Lei C, O'Neill M, Dyer PE, Kitney SP, Kelly SM. (2010) 'One-Step Photoembossing for Submicrometer Surface Relief Structures in Liquid Crystal Semiconductors'. AMER CHEMICAL SOC ACS NANO, 4 (6), pp. 3248-3253.
    doi: 10.1021/nn100012g
  • Daar E, Kaabar W, Lei C, Keddie JL, Nisbet A, Bradley DA. (2010) 'AFM and uni-axial testing of pericardium exposed to radiotherapy doses'. Elsevier Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 652 (1), pp. 874-877.
    doi: 10.1016/j.nima.2010.08.059
  • Deplace F, Rabjohns MA, Yamaguchi T, Foster AB, Carelli C, Lei C-H, Ouzineb K, Keddie JL, Lovell PA, Creton C. (2009) 'Deformation and adhesion of a periodic soft-soft nanocomposite designed with structured polymer colloid particles'. ROYAL SOC CHEMISTRY SOFT MATTER, 5 (7), pp. 1440-1447.
    doi: 10.1039/b815292f
    Full text is available at: http://epubs.surrey.ac.uk/7110/
  • Canetta E, Marchal J, Lei C-H, Deplace F, Koenig AM, Creton C, Ouzineb K, Keddie JL. (2009) 'A Comparison of Tackified, Miniemulsion Core-Shell Acrylic Latex Films with Corresponding Particle-Blend Films: Structure-Property Relationships'. AMER CHEMICAL SOC LANGMUIR, 25 (18), pp. 11021-11031.
    doi: 10.1021/la901324n
    Full text is available at: http://epubs.surrey.ac.uk/7105/
  • Gundabala VR, Lei C-H, Ouzineb K, Dupont O, Keddie JL, Routh AF. (2008) 'Lateral Surface Nonuniformities in Drying Latex Films'. JOHN WILEY & SONS INC AICHE JOURNAL, 54 (12), pp. 3092-3105.
    doi: 10.1002/aic.11621
  • Wang T, Lei C-H, Liu D, Manea M, Asua JM, Creton C, Dalton AB, Keddie JL. (2008) 'A molecular mechanism for toughening and strengthening waterborne nanocomposites'. WILEY-V C H VERLAG GMBH ADVANCED MATERIALS, 20 (1), pp. 90-+.
    doi: 10.1002/adma.200700821
  • Wang T, Lei C-H, Dalton AB, Manea M, Asua JM, Keddie JL. (2007) 'COLL 306-Waterborne nanocomposite pressure-sensitive adhesives: Achieving enhanced adhesion combined with electrical conductivity'. AMER CHEMICAL SOC ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 233
  • Lei C-H, Ouzineb K, Dupont O, Routh AF, Gundabala VR, Hinder SJ, Keddie JL. (2007) 'Lateral distribution of surfactants in waterborne pressure sensitive adhesive films: Theory and experiment'. AMER CHEMICAL SOC ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 233
  • Lei CH, Keddie JL, Ouzineb K, Dupont O. (2007) 'Probing particle structure in waterborne pressure-sensitive adhesives with atomic force microscopy'. Journal of Colloid and Interface Science, 307 (1), pp. 56-63.
    doi: 10.1016/j.jcis.2006.11.036
    Full text is available at: http://epubs.surrey.ac.uk/7207/

    Abstract

    There is a need to know the nanostructure of pressure-sensitive adhesive (PSA) films obtained from waterborne polymer colloids so that it can be correlated with properties. Intermittent-contact atomic force microscopy (AFM) of an acrylic waterborne PSA film identifies two components, which can be attributed to the polymer and the solids in the serum (mainly surfactant). It is found that when the average AFM tapping force, F, is relatively low, the polymer particles appear to be concave. But when F is higher, the particles appear to have a convex shape. This observation is explained by a height artefact caused by differences in the indentation depths into the two components that vary with the tapping amplitude and F. To achieve the maximum contrast between the polymer and serum components, F should be set such that the indentation depths are as different as possible. Unlike what is found for the height images, the phase contrast images of the PSA do not show a reversal in contrast over the range of tapping conditions applied. The phase images are thus reliable in distinguishing the two components of the PSA according to their viscoelastic properties. At the surface of films dried at room temperature, the serum component is found in localized regions within permanent depression into the film. © 2006 Elsevier Inc. All rights reserved.

  • Das A, Lei CH, Elliott M, Macdonald JE, Turner ML. (2006) 'Non-lithographic fabrication of PEDOT nano-wires between fixed Au electrodes'. ELSEVIER SCIENCE BV ORGANIC ELECTRONICS, 7 (4), pp. 181-187.
    doi: 10.1016/j.orgel.2005.12.006
  • Vandervorst P, Lei C-H, Dalton AB, Keddie JL, Dupont O, Lin Y, Sun Y-P. (2006) 'The fine dispersion of functionalized carbon nanotubes in acrylic latex coatings'. Progress in Organic Coatings, 57 (2), pp. 91-97.
    doi: 10.1016/j.porgcoat.2006.07.005
    Full text is available at: http://epubs.surrey.ac.uk/7518/

    Abstract

    Nanocomposites of a polymer and carbon nanotubes exhibit high electrical and thermal conductivity and enhanced mechanical properties in comparison to the polymer alone. Film formation from latex dispersions is an ideal way to create nanocomposite coatings with the advantages of solvent-free processing and a high uniformity of dispersion. It is shown here that carbon nanotubes functionalised with poly(vinyl alcohol) (PVA) can be blended with two types of acrylic latex to create stable colloidal dispersions without the need for added surfactant or emulsifier. Waterborne nanocomposite films with optical transparency can be formed. Microscopic analysis shows that the PVA-functionalized nanotubes are finely and uniformly dispersed in the polymer matrix. © 2006 Elsevier B.V. All rights reserved.

  • Wang T, Lei C-H, Dalton AB, Keddie JL, Creton C, Lin Y, Fernando KAS, Sun Y-P, Manea M, Asua JM. (2006) 'Waterborne, nanocomposite pressure-sensitive adhesives with high tack energy, optical transparency, and electrical conductivity'. Advanced Materials, 18 (20), pp. 2730-2734.
    doi: 10.1002/adma.200601335
  • Lei CH, Das A, Elliott M, Macdonald JE, Turner ML. (2004) 'Au-poly(3-hexylthiophene) contact behaviour at high resolution'. ELSEVIER SCIENCE SA SYNTHETIC METALS, 145 (2-3), pp. 217-220.
    doi: 10.1016/j.synthmet.2004.05.003
  • Lei CH, Das A, Elliott M, Macdonald JE. (2004) 'Quantitative electrostatic force microscopy-phase measurements'. IOP PUBLISHING LTD NANOTECHNOLOGY, 15 (5) Article number PII S0957-4484(04)71134-4 , pp. 627-634.
    doi: 10.1088/0957-4484/15/5/038
  • Lei CH, Das A, Elliott M, Macdonald JE. (2003) 'Conductivity of macromolecular networks measured by electrostatic force microscopy'. AMER INST PHYSICS APPLIED PHYSICS LETTERS, 83 (3), pp. 482-484.
    doi: 10.1063/1.1592888
  • Gorelik J, Shevchuk A, Ramalho M, Elliott M, Lei C, Higgins CF, Lab MJ, Klenerman D, Krauzewicz N, Korchev Y. (2002) 'Scanning surface confocal microscopy for simultaneous topographical and fluorescence imaging: Application to single virus-like particle entry into a cell'. NATL ACAD SCIENCES PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 99 (25), pp. 16018-16023.
    doi: 10.1073/pnas.252458399

Conference papers

  • Markoulidis F, Lei C, Lekakou C, Figgemeier E, Duff D, Khalil S, Martorana B, Cannavaro I. (2012) 'High-performance Supercapacitor cells with Activated Carbon/MWNT nanocomposite electrodes'. IOP Publishing IOP Conf.Series:MaterialsScienceandEngineering 40 (2012) 012021, International Conference on Structural Nano Composites(NANOSTRUC2012) 40
    doi: 10.1088/1757-899X/40/1/012021
  • Lei C, Markoulidis F, Ashitaka Z, Lekakou C. (2012) 'Reduction of the Internal Resistance of Carbon Electrodes for an Electric Double-layer Capacitor (EDLC)'. Toledo, OH, USA: The First International Conference on Materials, Energy and Environments (ICMEE)
  • Lekakou C, Lei C, Markoulidis F, Sorniotti A. (2012) 'Nanomaterials and Nanocomposites for High Energy/High Power Supercapacitors'. IEEE 2012 12TH IEEE CONFERENCE ON NANOTECHNOLOGY (IEEE-NANO), Birmingham, ENGLAND: 12th IEEE International Conference on Nanotechnology (IEEE-NANO)
  • Lei C, Lekakou C. (2010) 'Carbon-based nanocomposite EDLC supercapacitors'. Nano Science and Technology Institute Nanotechnology 2010: Advanced Materials, CNTs, Particles, Films and Composites, Anaheim, California, U.S.A.: Nanotech 2010 Conference and Expo 1, pp. 176-179.
    Full text is available at: http://epubs.surrey.ac.uk/713748/
  • Deplace F, Marchal J, Carelli C, Chateauminois A, Creton C, Rabjohns M, Foster A, Lovell PA, Lei C, Keddie J. (2009) 'Soft-soft nanocomposites for adhesive applications'. 12th International Conference on Fracture 2009, ICF-12, 2, pp. 1205-1211.
  • Lei C, Al Khalifah MS, O'Neill M, Aldred MP, Kitney SP, Vlachos P, Kelly SM. (2008) 'Calamitic liquid crystal blends for organic photovoltaics'. SPIE-INT SOC OPTICAL ENGINEERING ORGANIC PHOTOVOLTAICS IX, San Diego, CA: Conference on Organic Photovoltaics IX 7052
    doi: 10.1117/12.794260
  • Das A, Lei CH, Thomas HE, Elliott M, Macdonald JE, Glarvey P, Turner ML. (2006) 'EFM phase investigation of the metal-organic film interface'. ELSEVIER SCIENCE BV APPLIED SURFACE SCIENCE, Stockholm, SWEDEN: 8th International Conference on Atomically Controlled Surfaces, Interfaces, and Nanostructures/13th International Congress on Thin Films 252 (15), pp. 5477-5480.
    doi: 10.1016/j.apsusc.2005.12.091
  • Macdonald JE, Durell M, Trolley D, Lei C, Das A, Jukes PC, Geoghegan M, Higgins AM, Jones RAL. (2004) 'Applications of grazing incidence diffraction to polymer surfaces'. PERGAMON-ELSEVIER SCIENCE LTD RADIATION PHYSICS AND CHEMISTRY, Cape Town, SOUTH AFRICA: 9th International Symposium on Radiation Physics 71 (3-4), pp. 811-815.
    doi: 10.1016/j.radphyschem.2004.04.104