Selective photoelectrochemical deposition of polypyrrole onto hydrogenated a-Si for optoelectronic applications

D. Dosenovicova, J. Maricheva, A. Neumüller, O. Sergeev, O. Volobujeva, A. G. Nasibulin, J. Kois, A. Öpik, S. Bereznev

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    3 Citations (Scopus)

    Abstract

    In this study a number of hybrid (polypyrrole (PPy)/i-a-Si:H/n-a-Si:H/AZO/glass) solar cells have been prepared and characterized. Hydrogenated amorphous silicon n-doped (n-a-Si:H) and intrinsic (i-a-Si:H) layers acted as a charge separation and photoabsorber layers, respectively. Doped PPy was electrodeposited onto the i-a-Si:H/n-a-Si:H/AZO/glass electrodes using the selective photo-assisted technique under various illumination. Electrodeposition was held at room temperature in an aqueous solution containing PPy and 1-naphthalene sulfonate or polystyrene sulfonate doping agents at low potential values ranging from 300 mV to 500 mV vs. saturated calomel electrode. The efficiency of the photo-assisted ED technique for producing of conductive uniform PPy layers onto the i-a-Si:H photoabsorber is confirmed. The overall photoconversion efficiency of the hybrid solar cells was about 2.9% and comparable for different PPy doping agents and illumination conditions of the ED process.

    Original languageEnglish
    Pages (from-to)1-5
    Number of pages5
    JournalMaterials Science in Semiconductor Processing
    Volume68
    DOIs
    Publication statusPublished - Sep 2017

    Keywords

    • a-Si:H
    • Efficiency
    • Hybrid solar cell
    • Photoelectrochemical
    • Polypyrrole

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