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Photoluminescence Characterization of Phosphorus Diffusion and Hydrogenation in Continuous Wave Diode Laser Crystallized Si Thin-Film on Glass.

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Abstract

In this paper, the effect of phosphorus diffusion and hydrogen passivation on the material properties of laser crystallised silicon on glass is investigated. Photoluminescence imaging, as well as Hall effect and Suns-Voc techniques are applied for the characterisation of laser crystallized silicon thin-film material properties. Hall effect as well as Suns-Voc measurements supports the photoluminescence imaging results; phosphorus diffusion and hydrogen passivation of laser crystallized films improves the overall material quality. Hydrogen passivation is more effective at improving the electronic properties of the laser crystallized films than phosphorus diffusion. Hydrogen passivated samples improved the photoluminescence intensity even further by a factor of 3. In addition, a correlation between photoluminescence intensity and open-circuit voltage is demonstrated: samples with highest photoluminescence intensity (1678 counts/s), gave the highest voltage (530 mV). Hall effect measurement shows a significant improvement in the bulk material, with carrier mobility increasing from 208 cm2/Vs to 488 cm2/Vs.

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Authors and Affiliations

  1. University of New South Wales, 2052, Kensington, NSW, Australia

    Miga Jung, Anthony Teal, Jae Sung Yun, Sergey Varlamov & Martin A. Green

  2. Suntech R&D Australia Pty Ltd, 5 Parkview Drive, 2127, Homebush Bay, NSW, Australia

    Rhett Evans

Authors
  1. Miga Jung
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  2. Anthony Teal
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  3. Rhett Evans
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  4. Jae Sung Yun
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  5. Sergey Varlamov
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  6. Martin A. Green
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Jung, M., Teal, A., Evans, R. et al. Photoluminescence Characterization of Phosphorus Diffusion and Hydrogenation in Continuous Wave Diode Laser Crystallized Si Thin-Film on Glass.. MRS Online Proceedings Library 1638, 604 (2014). https://doi.org/10.1557/opl.2014.382

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  • DOI: https://doi.org/10.1557/opl.2014.382

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