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Enhanced photoconductance in ZnS–RGO-based nanocomposite under UV irradiation

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Abstract

Zinc Sulfide (ZnS) has the potential to act as UV detectors in various optoelectronic device applications. However average photoresponse and slow current decay in ZnS have limited its usage. Hence, an attempt has been made to redeem zinc sulfide’s (ZnS) potential as an efficient UV detector through ZnS–RGO nanocomposite formation using a facile technique. It was found that due to the incorporation of reduced graphene oxide (RGO) in tandem with ZnS led to significant improvement in the off-time current decay and photoconductance with light to dark ON–Off ratio increasing up to ~ 1.96 × 102.

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Acknowledgements

One of the authors (RR) would like to thank and acknowledge the Council of Scientific and Industrial Research (CSIR), the Govt. of India for awarding him a Senior Research Fellowship (SRF) during the tenure of this research work. The authors are also grateful to the UGC for granting UPE-II and the DST, the Govt. of India for financial support.

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Author notes

  1. Nirmalya Sankar Das

    Present address: Department of Basic Sc. and Humanities, Techno India, Batanagar, Kolkata, 700141, India

Authors and Affiliations

  1. Thin Film and Nanoscience Laboratory, Department of Physics, Kolkata, 700032, India

    Rajarshi Roy, Dipayan Sen & Kalyan Kumar Chattopadhyay

  2. School of Materials Science and Nanotechnology, Jadavpur University, Kolkata, 700032, India

    Rajarshi Roy, Nirmalya Sankar Das, Subhajit Saha & Kalyan Kumar Chattopadhyay

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  1. Rajarshi Roy
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  2. Nirmalya Sankar Das
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Correspondence to Kalyan Kumar Chattopadhyay.

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Roy, R., Das, N.S., Sen, D. et al. Enhanced photoconductance in ZnS–RGO-based nanocomposite under UV irradiation. Appl. Phys. A 124, 45 (2018). https://doi.org/10.1007/s00339-017-1439-7

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  • DOI: https://doi.org/10.1007/s00339-017-1439-7

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