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 language | Malay |
|---|---|
| Pages (from-to) | 1511-1516 |
| Number of pages | 6 |
| Journal | Sains Malaysiana |
| Volume | 47 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 1 Jul 2018 |
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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 journal › Article
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TY - JOUR
T1 - Kesan resonans plasmon aurum terhadap prestasi fotoelektrokimia fotokatod Cu2O
AU - Ng, Kim Hang
AU - Effery Minggu, Lorna
AU - Jaafar, Nurul Akmal
AU - Kassim, Mohammad
PY - 2018/7/1
Y1 - 2018/7/1
N2 - 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.
AB - 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.
KW - Metal oxide
KW - Photoelectrochemical
KW - Plasmonic
UR - http://www.scopus.com/inward/record.url?scp=85051863117&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85051863117&partnerID=8YFLogxK
U2 - 10.17576/jsm-2018-4707-19
DO - 10.17576/jsm-2018-4707-19
M3 - Article
VL - 47
SP - 1511
EP - 1516
JO - Sains Malaysiana
JF - Sains Malaysiana
SN - 0126-6039
IS - 7
ER -