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George Koutsourakis

George Koutsourakis

Senior scientist

George Koutsourakis obtained his MEng degree in Applied Physics from the National Technical University of Athens (Greece), followed by an MSc in Energy and Environment at the Physics department of University of Patras (Greece). He acquired his PhD (Electronic and Electrical Engineering) in the area of photovoltaic device characterisation and metrology at Loughborough University, through an iCase award project with NPL.

George joined NPL in 2017. His work focuses on improving photovoltaic and optoelectronic device testing standards and the development of novel characterisation techniques for characterisation of solar cells and other optoelectronic devices. George has developed several novel characterisation techniques utilising digital light processing and compressed sensing. George is active in multiple standardisation activities in the area of photovoltaics, from testing and reliability of emerging devices such as perovskites solar cells, up to large scale PV system monitoring and assessment.


Areas of interest

  • Photovoltaic device (PV) testing and standardisation activities
  • Emerging PV device characterisation and ageing
  • Digital Light Processing
  • Compressed Sensing
  • PV system metrics and standards


Selected publications

G. Koutsourakis, A. Thompson, and J. C. Blakesley, “Toward Megapixel Resolution Compressed Sensing Current Mapping of Photovoltaic Devices Using Digital Light Processing,” Sol. RRL, vol. 2100467, p. 2100467, Sep. 2021, doi: 10.1002/solr.202100467.

G. Koutsourakis, T. Eales, I. Kroeger, and J. C. Blakesley, “High-resolution linearity measurements of photovoltaic devices using digital light processing projection,” Meas. Sci. Technol., vol. 32, no. 5, p. 055901, May 2021, doi: 10.1088/1361-6501/abe162.

Y. Cao, G. Koutsourakis, G. J. M. Sutton, J. W. E. Kneller, S. Wood, J. C. Blakesley, F. A. Castro., “In situ contactless thermal characterisation and imaging of encapsulated photovoltaic devices using phosphor thermometry,” Prog. Photovoltaics Res. Appl., no. February, p. pip.3142, Jun. 2019, doi: 10.1002/pip.3142.

G. Koutsourakis, J. C. Blakesley, and F. A. Castro, “Signal Amplification Gains of Compressive Sampling for Photocurrent Response Mapping of Optoelectronic Devices,” Sensors, vol. 19, no. 13, p. 2870, Jun. 2019, doi: 10.3390/s19132870.

G. Koutsourakis, M. Cashmore, S. R. G. Hall, M. Bliss, T. R. Betts, and R. Gottschalg, “Compressed Sensing Current Mapping Spatial Characterization of Photovoltaic Devices,” IEEE J. Photovoltaics, vol. 7, no. 2, pp. 486–492, Mar. 2017, doi: 10.1109/JPHOTOV.2016.2646900.

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