IMPROVED PHOTOVOLTAIC PROPERTIES OF A BACK-CONTACT ELECTRODE PRODUCED BY COPPER DEPOSITIONON CARBON-DOTS/CARBON PAPER
Journal Title: Journal of Machine Construction and Maintenance - Year 2018, Vol 108, Issue 1
Abstract
The implementation of carbon dots in electronic devices are among the hot topics in today’s research. The current work describes the fabrication of a new back contact electrode for solar cells with the modification of carbon paper by the uniform deposition of highly crystalline carbon dots (CD). The ~5nm size CD were synthesized by the sonication of polyethylene glycol (PEG-400), which was further deposited on carbon paper. Copper was successfully electrodeposited onto the modified C-dots carbon-paper (C-paper@CD) through a potentiostatic procedure. The SEM and XRD results show that the electrodeposition of copper on CD-modified carbon paper is denser than pristine carbon-paper. A detailed study of CD@C-paper and Cu/Cu2O-CD@C-paper was performed using the XRD, SEM, Raman, EDS, Elemental mapping, KPFM (Kelvin Probe Force Microscope), etc. The as-prepared electrode comprising of a C-paper modified with CD was tested in solar cells as a back contact, and it demonstrated superior high photo-voltage, significantly useful for photovoltaic implications.
Authors and Affiliations
Vijay Bhooshan KUMAR, Zeev PORAT, Aharon GEDANKEN
Keywords
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