Dr Girish Lakhwani

MSc (Integrated) IIT Kanpur; PhD TU Eindhoven
Lecturer
Honours and Graduate Diploma Coordinator

F11 - Chemistry Building
The University of Sydney

Telephone +61 2 9351 5783
Fax +61 2 9351 3329

Website Group Webpage
Contact Details

Biographical details

  • M.Sc (Integrated), Indian Institute of Technology, Kanpur, India, 2005
  • PhD, Eindhoven University of Technology, the Netherlands, 2009
  • Postdoctoral Research Associate, University of Texas at Austin, USA, 2009-2011
  • Postdoctoral Research Associate, University of Cambridge, UK, 2011-2014
  • Lecturer, University of Sydney, 2014-

Research interests

Our research activities are focussed on developing spectroscopic methods to study optical and electronic properties of novel nanoscale semiconductor materials for solar energy harvesting and polarisation switching. Our research can be broadly classified in the following domains.

  • Chirality and chiroptical spectroscopy
  • Single molecule fluorescence spectroscopy, super-resolution spectroscopy
  • Organic electronic devices, e.g., solar cells, light emitting-diodes and lasers
  • Master equation based numerical simulations

To know more about our research, please visit our group webpage

Teaching and supervision

Current research students

Project title Research student
A Study towards Weakly-Structured Fluids -- From Controlled Self-Assembly to Functional Materials Joy JIANG
Ligand-mediated interactions between colloidal nanorods: Establishing design rules for creating new materials for solar energy capture Debora MONEGO

Current projects

Associations

Selected grants

2017

  • ARC Centre of Excellence in Exciton Science; Mulvaney P, Lakhwani G, McCamey D, Widmer-Cooper A; NSW Department of Industry/Research Attraction and Acceleration Program.
  • ARC Centre of Excellence in Exciton Science; Mulvaney P, Ghiggino K, Smith T, Sader J, Wong W, Russo S, Cole J, Jasieniak J, Funston A, Bach U, Cheng Y, Lakhwani G, Widmer-Cooper A, McCamey D, Schmidt T; Australian Research Council (ARC)/ARC Centres of Excellence.

2016

  • Energy Transfer Across Organic-Inorganic Interfaces; McCamey D, Lakhwani G; Australian Research Council (ARC)/Discovery Projects (DP).

2015

  • Bruker Fourier Transform Infrared Circular Dichroism Accessory; Lay P, Lakhwani G, Hawkins C, Bilek M, Matthews J; DVC Research/Equipment Grant.
  • Fabrication Facility for Oxygen-Sensitive Electronic Materials; Lakhwani G, McCamey D, Schmidt T, Gooding J, D'Alessandro D; Australian Research Council (ARC)/Linkage Infrastructure, Equipment and Facilities (LIEF).

Selected publications

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Journals

  • Li, C., Vaynzof, Y., Lakhwani, G., Beirne, G., Wang, J., Greenham, N. (2017). Observation of oxygen vacancy migration in memory devices based on ZnO nanoparticles. Journal of Applied Physics, 121(14), 144503-1-144503-6. [More Information]
  • Meskers, S., Lakhwani, G. (2016). A model for exciton-polaritions in uniaxial molecular crystals describing spatial dispersion, refraction and reflection. arxiv.org, 145, 194703-1-194703-55. [More Information]
  • Kettner, O., Pein, A., Trimmel, G., Christian, P., Rothel, C., Salzmann, I., Resel, R., Lakhwani, G., Lombeck, F., Sommer, M., et al (2016). Mixed side-chain geometries for aggregation control of poly(fluorene-alt-bithiophene) and their effects on photophysics and charge transport. Synthetic Metals, 220, 162-173. [More Information]
  • Meskers, S., Lakhwani, G. (2016). Reflection of light by anisotropic molecular crystals including exciton-polaritons and spatial dispersion. Journal of Chemical Physics, 145(19), 1-10. [More Information]
  • Chow, P., Bayliss, S., Lakhwani, G., Greenham, N., Friend, R. (2015). In situ optical measurement of charge transport dynamics in organic photovoltaics. Nano Letters, 15(2), 931-935. [More Information]
  • Lakhwani, G., Rao, A., Friend, R. (2014). Bimolecular Recombination in Organic Photovoltaics. Annual Review of Physical Chemistry, 65, 557-581. [More Information]
  • Kumar, A., Lakhwani, G., Elmalem, E., Huck, W., Rao, A., Greenham, N., Friend, R. (2014). Interface limited charge extraction and recombination in organic photovoltaics. Energy and Environmental Science, 7(7), 2227-2231. [More Information]
  • Li, C., Beirne, G., Kamita, G., Lakhwani, G., Wang, J., Greenham, N. (2014). Probing the switching mechanism in ZnO nanoparticle memristors. Journal of Applied Physics, 116(11), 114501-1-114501-5. [More Information]
  • Li, Z., Lakhwani, G., Greenham, N., McNeill, C. (2013). Voltage-dependent photocurrent transients of PTB7:PC70BM solar cells: Experiment and numerical simulation. Journal of Applied Physics, 112, 1-9. [More Information]
  • Adachi, T., Lakhwani, G., Traub, M., Ono, R., Bielawski, C., Barbara, P., Vanden Bout, D. (2012). Conformational Effect on Energy Transfer in Single Polythiophene Chains. The Journal of Physical Chemistry B, 116(32), 9866-9872. [More Information]
  • Lakhwani, G., Meskers, S. (2012). Insights from Chiral Polyfluorene on the Unification of Molecular Exciton and Cholesteric Liquid Crystal Theories for Chiroptical Phenomena. The Journal of Physical Chemistry A, 116(4), 1121-1128. [More Information]
  • Lakhwani, G., Meskers, S. (2011). Circular selective reflection of light proving cholesteric ordering in thin layers of chiral fluorene polymers. Journal of Physical Chemistry Letters, 2(13), 1497-1501. [More Information]
  • Traub, M., Lakhwani, G., Bolinger, J., Vanden Bout, D., Barbara, P. (2011). Electronic energy transfer in highly-aligned MEH-PPV single chains. The Journal of Physical Chemistry B, 115(33), 9941-9947. [More Information]
  • Gilot, J., Abbel, R., Lakhwani, G., Meijer, E., Schenning, A., Meskers, S. (2010). Polymer photovoltaic cells sensitive to the circular polarization of light. Advanced Energy Materials, 22(20), E131-E134. [More Information]
  • Lakhwani, G., Roijmans, R., Kronemeijer, A., Gilot, J., Janssen, R., Meskers, S. (2010). Probing charge carrier density in a layer of photodoped ZnO nanoparticles by spectroscopic ellipsometry. The Journal of Physical Chemistry C, 114(35), 14804-14810. [More Information]
  • Lakhwani, G., Janssen, R., Meskers, S. (2009). Anisotropic dielectric tensor for chiral polyfluorene at optical frequencies. The Journal of Physical Chemistry B, 113(43), 14165-14171. [More Information]
  • Lakhwani, G., Meskers, S. (2009). Beta phase in chiral polyfluorene forms via a precursor. Macromolecules, 42(12), 4220-4223. [More Information]
  • Lakhwani, G., Gielen, J., Kemerink, M., Christianen, P., Janssen, R., Meskers, S. (2009). Intensive chiroptical properties of chiral polyfluorenes associated with fibril formation. The Journal of Physical Chemistry B, 113(43), 14047-14051. [More Information]
  • Lakhwani, G., Janssen, R., Meskers, S. (2009). Large photoinduced circular dichroism in chiral polyfluorene. The Journal of Physical Chemistry A, 113(41), 10891-10894. [More Information]
  • Savoini, M., Biagioni, P., Lakhwani, G., Meskers, S., Duo, L., Finazzi, M. (2009). Near-field circular polarization probed by chiral polyfluorene. Optics Letters, 34(22), 3571-3573. [More Information]
  • Lakhwani, G., Meskers, S., Janssen, R. (2007). Circular differential scattering of light in films of chiral polyfluorene. The Journal of Physical Chemistry B, 111(19), 5124-5131. [More Information]
  • Lakhwani, G., Koeckelberghs, G., Meskers, S., Janssen, R. (2007). The chiroptical properties of chiral substituted poly[3-((3S)-3,7-dimethyloctyl)thiophene] as a function of film thickness. Chemical Physics Letters, 437(4-6), 193-197. [More Information]

2017

  • Li, C., Vaynzof, Y., Lakhwani, G., Beirne, G., Wang, J., Greenham, N. (2017). Observation of oxygen vacancy migration in memory devices based on ZnO nanoparticles. Journal of Applied Physics, 121(14), 144503-1-144503-6. [More Information]

2016

  • Meskers, S., Lakhwani, G. (2016). A model for exciton-polaritions in uniaxial molecular crystals describing spatial dispersion, refraction and reflection. arxiv.org, 145, 194703-1-194703-55. [More Information]
  • Kettner, O., Pein, A., Trimmel, G., Christian, P., Rothel, C., Salzmann, I., Resel, R., Lakhwani, G., Lombeck, F., Sommer, M., et al (2016). Mixed side-chain geometries for aggregation control of poly(fluorene-alt-bithiophene) and their effects on photophysics and charge transport. Synthetic Metals, 220, 162-173. [More Information]
  • Meskers, S., Lakhwani, G. (2016). Reflection of light by anisotropic molecular crystals including exciton-polaritons and spatial dispersion. Journal of Chemical Physics, 145(19), 1-10. [More Information]

2015

  • Chow, P., Bayliss, S., Lakhwani, G., Greenham, N., Friend, R. (2015). In situ optical measurement of charge transport dynamics in organic photovoltaics. Nano Letters, 15(2), 931-935. [More Information]

2014

  • Lakhwani, G., Rao, A., Friend, R. (2014). Bimolecular Recombination in Organic Photovoltaics. Annual Review of Physical Chemistry, 65, 557-581. [More Information]
  • Kumar, A., Lakhwani, G., Elmalem, E., Huck, W., Rao, A., Greenham, N., Friend, R. (2014). Interface limited charge extraction and recombination in organic photovoltaics. Energy and Environmental Science, 7(7), 2227-2231. [More Information]
  • Li, C., Beirne, G., Kamita, G., Lakhwani, G., Wang, J., Greenham, N. (2014). Probing the switching mechanism in ZnO nanoparticle memristors. Journal of Applied Physics, 116(11), 114501-1-114501-5. [More Information]

2013

  • Li, Z., Lakhwani, G., Greenham, N., McNeill, C. (2013). Voltage-dependent photocurrent transients of PTB7:PC70BM solar cells: Experiment and numerical simulation. Journal of Applied Physics, 112, 1-9. [More Information]

2012

  • Adachi, T., Lakhwani, G., Traub, M., Ono, R., Bielawski, C., Barbara, P., Vanden Bout, D. (2012). Conformational Effect on Energy Transfer in Single Polythiophene Chains. The Journal of Physical Chemistry B, 116(32), 9866-9872. [More Information]
  • Lakhwani, G., Meskers, S. (2012). Insights from Chiral Polyfluorene on the Unification of Molecular Exciton and Cholesteric Liquid Crystal Theories for Chiroptical Phenomena. The Journal of Physical Chemistry A, 116(4), 1121-1128. [More Information]

2011

  • Lakhwani, G., Meskers, S. (2011). Circular selective reflection of light proving cholesteric ordering in thin layers of chiral fluorene polymers. Journal of Physical Chemistry Letters, 2(13), 1497-1501. [More Information]
  • Traub, M., Lakhwani, G., Bolinger, J., Vanden Bout, D., Barbara, P. (2011). Electronic energy transfer in highly-aligned MEH-PPV single chains. The Journal of Physical Chemistry B, 115(33), 9941-9947. [More Information]

2010

  • Gilot, J., Abbel, R., Lakhwani, G., Meijer, E., Schenning, A., Meskers, S. (2010). Polymer photovoltaic cells sensitive to the circular polarization of light. Advanced Energy Materials, 22(20), E131-E134. [More Information]
  • Lakhwani, G., Roijmans, R., Kronemeijer, A., Gilot, J., Janssen, R., Meskers, S. (2010). Probing charge carrier density in a layer of photodoped ZnO nanoparticles by spectroscopic ellipsometry. The Journal of Physical Chemistry C, 114(35), 14804-14810. [More Information]

2009

  • Lakhwani, G., Janssen, R., Meskers, S. (2009). Anisotropic dielectric tensor for chiral polyfluorene at optical frequencies. The Journal of Physical Chemistry B, 113(43), 14165-14171. [More Information]
  • Lakhwani, G., Meskers, S. (2009). Beta phase in chiral polyfluorene forms via a precursor. Macromolecules, 42(12), 4220-4223. [More Information]
  • Lakhwani, G., Gielen, J., Kemerink, M., Christianen, P., Janssen, R., Meskers, S. (2009). Intensive chiroptical properties of chiral polyfluorenes associated with fibril formation. The Journal of Physical Chemistry B, 113(43), 14047-14051. [More Information]
  • Lakhwani, G., Janssen, R., Meskers, S. (2009). Large photoinduced circular dichroism in chiral polyfluorene. The Journal of Physical Chemistry A, 113(41), 10891-10894. [More Information]
  • Savoini, M., Biagioni, P., Lakhwani, G., Meskers, S., Duo, L., Finazzi, M. (2009). Near-field circular polarization probed by chiral polyfluorene. Optics Letters, 34(22), 3571-3573. [More Information]

2007

  • Lakhwani, G., Meskers, S., Janssen, R. (2007). Circular differential scattering of light in films of chiral polyfluorene. The Journal of Physical Chemistry B, 111(19), 5124-5131. [More Information]
  • Lakhwani, G., Koeckelberghs, G., Meskers, S., Janssen, R. (2007). The chiroptical properties of chiral substituted poly[3-((3S)-3,7-dimethyloctyl)thiophene] as a function of film thickness. Chemical Physics Letters, 437(4-6), 193-197. [More Information]

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