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Thin highly transparent visible/near-infrared Ta-doped TiO2 electrode

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Abstract

The study focuses on the development of novel transparent electrode for maximizing energy harvesting and performance of an optoelectronic device. Along with the high visible transparency (of 82%), this electrode has also ensured high near-infrared transparency of 88% that is substantially higher than the conventionally used Sn-doped In2O3 (ITO), F-doped SnO2 (FTO) and Al-doped ZnO (AZO). The film shows an electrical resistivity of 24.54 × 10–3 Ω cm and a high electron concentration of 1.14 × 1021 cm−3. Moreover, this highly transparent visible/near-infrared Ta-doped TiO2 electrode is realized on a glass substrate that has inferior quality as compared to its crystalline counterparts and hence cost-effective. Here, magnetron sputtering, one of the commercially viable deposition techniques, is used to synthesize this electrode, thus enabling huge commercialization possibilities.

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Acknowledgements

We gratefully acknowledge financial support from Science and Engineering Research Board (SERB) and Department of Science and Technology (DST), Government of India (Project No. EMR/2016/001182 and SR/FST/ET-I/2017/18). We are also thankful to ACMS, IIT Kanpur, India, for XPS characterization.

Funding

This work is financially supported by Science and Engineering Research Board (SERB) and Department of Science and Technology (DST), Government of India (Project No. EMR/2016/001182 and SR/FST/ET-I/2017/18).

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  1. Shivam Shukla and Krishna Manwani have contributed equally to this work.

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  1. Materials Engineering Discipline, Indian Institute of Technology Gandhinagar, Palaj, Gujarat, 382355, India

    Shivam Shukla, Krishna Manwani & Emila Panda

  2. Department of Biotechnology and Bioengineering, Institute of Advanced Research, Gandhinagar, Gujarat, 382426, India

    Tvarit A. Patel

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KM and EP involved in conceptualization, KM, SS and TAP took part in methodology, SS, KM and TAP involved in formal analysis and investigation, SS took part in writing—original draft preparation, EP involved in writing—review and editing, EP took part in funding acquisition, EP involved in resources, and EP involved in supervision.

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Shukla, S., Manwani, K., Patel, T.A. et al. Thin highly transparent visible/near-infrared Ta-doped TiO2 electrode. J Mater Sci: Mater Electron 34, 234 (2023). https://doi.org/10.1007/s10854-022-09672-x

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