Copper Electrode on Flexible Substrate by Intense Pulsed Light Sintering of Microsized Copper Particles

Ren, Keming; Druffel, Thad

doi:10.1109/pvsc43889.2021.9519105

Copper Electrode on Flexible Substrate by Intense Pulsed Light Sintering of Microsized Copper Particles

Journal Article · Sun Jun 20 00:00:00 EDT 2021 · Conference Record of the IEEE Photovoltaic Specialists Conference

DOI:https://doi.org/10.1109/pvsc43889.2021.9519105· OSTI ID:1829040

Ren, Keming ^[1]; Druffel, Thad ^[1]

Univ. of Louisville, KY (United States)

Metal electrodes deposited in a grid pattern onto flexible polymer substrates have been shown to be a viable alternative to replace indium tin oxide (ITO) as the transparent anode for organic photovoltaics. copper may be a better alternative in terms of cost and stability for large area low-cost solar modules, specifically on roll-to-roll platforms. These customized electrode patterns can be fabricated from copper nanoparticles through various printing techniques applicable to solution phase processing. The Intense Pulsed Light (IPL) technique has been used to sinter copper nanoparticles (~100nm) to fabricate conductive copper electrodes on flexible polymer substrates. However, compared to nanosized (~100 nm) copper particles, microsized (~2 um) copper is much cheaper. In this work, microsized (~2 um) copper is used to produce high conductive copper inks. The conductivity of the print can be adjusted through the use of surfactant. IPL sintering was optimized to obtain high conductivity copper films. In conclusion, several microscopic and electrical spectroscopic characterization techniques such as scanning electron microscopy (SEM), x-ray diffraction (XRD), 4-point probe resistivity measurements were employed to characterize the copper electrodes.

View Accepted Manuscript (DOE)

Research Organization:: Univ. of Louisville, KY (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office

Grant/Contract Number:: EE0008972

OSTI ID:: 1829040

Journal Information:: Conference Record of the IEEE Photovoltaic Specialists Conference, Journal Name: Conference Record of the IEEE Photovoltaic Specialists Conference; ISSN 0160-8371

Publisher:: IEEECopyright Statement

Country of Publication:: United States

Language:: English

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