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Advanced Materials

Inkjet-Printed Nanocrystal Photodetectors Operating up to 3 μm Wavelengths

Authors

  • M. Böberl,

    1. Institute for Semiconductor and Solid State Physics, University Linz, Altenbergerstr. 69, 4040 Linz (Austria)
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  • M. V. Kovalenko,

    1. Institute for Semiconductor and Solid State Physics, University Linz, Altenbergerstr. 69, 4040 Linz (Austria)
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  • S. Gamerith,

    1. Christian Doppler Laboratory Advanced Functional Materials, Institute of Solid State Physics, Graz University of Technology, 8010 Graz (Austria)
    2. Institute of Nanostructured Materials and Photonics, Joanneum Research, 8160 Weiz (Austria)
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  • E. J. W. List,

    1. Christian Doppler Laboratory Advanced Functional Materials, Institute of Solid State Physics, Graz University of Technology, 8010 Graz (Austria)
    2. Institute of Nanostructured Materials and Photonics, Joanneum Research, 8160 Weiz (Austria)
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  • W. Heiss

    1. Institute for Semiconductor and Solid State Physics, University Linz, Altenbergerstr. 69, 4040 Linz (Austria)
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  • The authors are grateful to S. Andreeva, J. Jägermüller, O. Fuchs, E. Nusko, A. Prauss and A. Halilovic for technical assistance. Financial support from the Austrian Science Foundation FWF Project START Y179 and SFB IR-ON and NSI project of the Austrian Nanoinitiative and GME of Austria is gratefully acknowledged. The CDL-AFM gratefully acknowledges the continuous support of AT&S AG. Supporting Information is available online from Wiley InterScience or from the authors.

Abstract

Solution processable photodetectors operating up to 3 μm cut-off wavelength based on HgTe nanocrystals are demonstrated. Ink-jet printing is employed for the accurate deposition of the nanocrystals on the electrodes. The highly reproducible photodetectors exhibit high sensitivities for small illumination powers, making the devices ideal candidates for night vision applications.

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