Improved photovoltaic properties of a back-contact electrode produced by copper deposition on carbon-dots/carbon paper

• Autorzy: Kumar V. B. , Porat Z. , Gedanken A.

Warianty tytułu

PL

Ulepszone właściwości fotowoltaiczne dolnej warstwy kontaktowej wytwarzanej metodą depozycji miedzi na skojarzeniu kropki węglowe/papier węglowy

• Języki publikacji: EN

Abstrakty

EN

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/Cu2OCD@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.

PL

Implementacja kropek węglowych w zastosowaniach elektronicznych to obecnie jeden z najszybciej rozwijających się kierunków współczesnej nauki. W artykule opisano nową metodę wytwarzania dolnej warstwy kontaktowej (elektrody dolnej) w ogniwach fotowoltaicznych techniką równomiernej depozycji wysoce krystalicznych kropek węglowych (CD). CD wielkości ~5 nm generowano poprzez sonikację glikolu polietylenowego (PEG-400), który deponowano na papierze węglowym. Na tak zmodyfikowanym papierze (C-paper@CD) miedź osadzano metodą potencjostatycznej elektrodepozycji. Wyniki analiz SEM oraz XRD wskazują, że zastosowana technologia sprzyja powstawaniu bardziej zwartych warstw przewodzących w porównaniu z niemodyfikowanym papierem węglowym. Szczegółowe badania CD@C-paper oraz skojarzenia Cu/Cu2O-CD@C-paper przeprowadzono z wykorzystaniem technik XRD, SEM, spektroskopii Ramana, EDS, mapowania elementarnego, KPFM (mikroskopia sił z sondą Kelvina) i innych. Wytworzone elektrody były także testowane w ogniwach słonecznych w roli dolnej warstwy kontaktowej i wykazały wybitne właściwości szczególnie pożądane w zastosowaniach fotowoltaicznych.

Słowa kluczowe

EN

back contact; carbon-dots; carbon-paper; electrodeposition of copper

PL

elektroda dolna; kropki węglowe; papier węglowy; elektrodepozycja miedzi

• Wydawca: Wydawnictwo Naukowe Instytutu Technologii Eksploatacji - Państwowego Instytutu Badawczego
• Czasopismo: Journal of Machine Construction and Maintenance - Problemy Eksploatacji
• Rocznik: 2018
• Tom: no. 1
• Strony: 7--15
• Opis fizyczny: Bibliogr. 39 poz., rys.

Twórcy

autor

Kumar V. B.

• Institute of Nanotechnology and Advanced Materials, Department of Chemistry, Bar-Ilan University, Ramat-Gan, Israel

autor

Porat Z.

• Division of Chemistry, Nuclear Research Center-Negev, Be’er-Sheva, Israel

autor

Gedanken A.

• Institute of Nanotechnology and Advanced Materials, Department of Chemistry, Bar-Ilan University, Ramat-Gan, Israel

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).