Journal
SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume 224, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.solmat.2021.110973
Keywords
Solar; Photovoltaic; Metallization; Effectively transparent contacts; Reactive silver ink
Funding
- Higher Education Commission, Pakistan [NRPU-6046]
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The study successfully prepared ETCs with high conductivity and visible light transparency by mixing reactive silver ink with low temperature sintering conductive silver paste, making them suitable for use in thermally sensitive optoelectronic and photovoltaic devices; this composite material reduces optical and electrical losses, and exhibits better performance compared to bare transparent conductive oxides.
High conductivity silver pastes are usually incompatible for use with thermally sensitive devices due to their higher sintering temperatures while nanoparticle inks are costly and undergo high particle agglomeration. Effectively transparent contacts (ETCs) have been designed to increase the transmittance, reduce reflectance and overcome shadowing losses in solar cells while enhancing the overall conductivity and charge collection through the grid. In this study, reactive silver ink (RSI) is mixed with a low temperature sintering conductive silver paste (150 degrees C) for deposition via a microchannel approach. ETCs deposited using the resulting composite were cured at a lower temperature (100 degrees C) with a conductivity of the order of 10(3) 1/Omega-cm and a transparency >90% in the visible region, promising a reduction in optical and electrical losses when compared to bare transparent conductive oxides. The use of low temperature curing conductive material makes ETCs suitable for use in thermally sensitive optoelectronic and photovoltaic devices, hence they were ultimately deposited on perovskite solar cells and the solar cell parameters were measured.
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