Kesan resonans plasmon aurum terhadap prestasi fotoelektrokimia fotokatod Cu2O

Translated title of the contribution: Plasmonic resonance effect of aurum on photoelectrochemical performance of Cu2O photocathode

Kim Hang Ng, Lorna Effery Minggu, Nurul Akmal Jaafar, Mohammad Kassim

Research output: Contribution to journalArticle

Abstract

In this work, the effect of Au layer on cuprous oxide (Cu2O) photocathode on photoelectrochemical reaction was studied. The Cu2O and Au layer were prepared on a fluorine-doped tin oxide (FTO) glass substrate in different configurations, via electrodeposition method. Then, the photocathodes were characterized by field-emission scanning electron microscopy (FESEM), UV-Vis spectroscopy and photoelectrochemical analysis. From the FESEM images, the Au layer was successfully deposited onto the FTO substrate and the surface of Cu2O. The plasmonic absorption of Au at visible light region was proven and it improved the utilization of visible light for photoelectrochemical reaction. As a result, the photoelectrochemical performance of the plasmonized Cu2O photocathode improved significantly. Under simulated AM 1.5 solar illumination, the Au sandwiched Cu2O photocathode generated the highest photocurrent density, which is ~4 folds enhancement compared to that obtained by bare Cu2O photocathode.

Original languageMalay
Pages (from-to)1511-1516
Number of pages6
JournalSains Malaysiana
Volume47
Issue number7
DOIs
Publication statusPublished - 1 Jul 2018

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Photocathodes
Fluorine
Field emission
Scanning electron microscopy
Substrates
Ultraviolet spectroscopy
Photocurrents
Electrodeposition
Lighting
Glass

ASJC Scopus subject areas

  • General

Cite this

Kesan resonans plasmon aurum terhadap prestasi fotoelektrokimia fotokatod Cu2O. / Ng, Kim Hang; Effery Minggu, Lorna; Jaafar, Nurul Akmal; Kassim, Mohammad.

In: Sains Malaysiana, Vol. 47, No. 7, 01.07.2018, p. 1511-1516.

Research output: Contribution to journalArticle

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abstract = "In this work, the effect of Au layer on cuprous oxide (Cu2O) photocathode on photoelectrochemical reaction was studied. The Cu2O and Au layer were prepared on a fluorine-doped tin oxide (FTO) glass substrate in different configurations, via electrodeposition method. Then, the photocathodes were characterized by field-emission scanning electron microscopy (FESEM), UV-Vis spectroscopy and photoelectrochemical analysis. From the FESEM images, the Au layer was successfully deposited onto the FTO substrate and the surface of Cu2O. The plasmonic absorption of Au at visible light region was proven and it improved the utilization of visible light for photoelectrochemical reaction. As a result, the photoelectrochemical performance of the plasmonized Cu2O photocathode improved significantly. Under simulated AM 1.5 solar illumination, the Au sandwiched Cu2O photocathode generated the highest photocurrent density, which is ~4 folds enhancement compared to that obtained by bare Cu2O photocathode.",
keywords = "Metal oxide, Photoelectrochemical, Plasmonic",
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AU - Kassim, Mohammad

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