TY - JOUR
T1 - Catalyst-assisted growth of InGaN NWs for photoelectrochemical water-splitting applications
AU - Venkatesh, P. Sundara
AU - Paulraj, G.
AU - Dharmaraj, P.
AU - Purushothaman, V.
AU - Jeganathan, K.
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: PSV would like to express his sincere gratitude to the College management for their financial support to develop a nanomaterials laboratory.
PY - 2020/2/13
Y1 - 2020/2/13
N2 - In this work, we have successfully grown InGaN nanowires by catalyst-assisted chemical vapour deposition technique with high aspect ratio for solar-driven water splitting applications. The band gap of the InGaN nanowires has been tuned to absorb a wide range of visible parts of electromagnetic spectrum by optimizing the composition of In:Ga. The photoelectrochemical analysis has been carried out for InGaN nanowires and that evidences the significant solar oxygen evolution reaction with a small onset potential of 0.234 V vs. reversible hydrogen electrode. From the analysis, it has been witnessed the maximum applied bias to photo-conversion efficiency of ~ 1% at the applied bias of 0.63 V vs. reversible hydrogen electrode. Moreover, the ultra-long stability of InGaN nanowires has been evidenced by 3000 s with a flat current density of 0.43 mA/cm2 in chronoamperometry analysis.
AB - In this work, we have successfully grown InGaN nanowires by catalyst-assisted chemical vapour deposition technique with high aspect ratio for solar-driven water splitting applications. The band gap of the InGaN nanowires has been tuned to absorb a wide range of visible parts of electromagnetic spectrum by optimizing the composition of In:Ga. The photoelectrochemical analysis has been carried out for InGaN nanowires and that evidences the significant solar oxygen evolution reaction with a small onset potential of 0.234 V vs. reversible hydrogen electrode. From the analysis, it has been witnessed the maximum applied bias to photo-conversion efficiency of ~ 1% at the applied bias of 0.63 V vs. reversible hydrogen electrode. Moreover, the ultra-long stability of InGaN nanowires has been evidenced by 3000 s with a flat current density of 0.43 mA/cm2 in chronoamperometry analysis.
UR - http://hdl.handle.net/10754/661662
UR - http://link.springer.com/10.1007/s11581-020-03488-7
UR - http://www.scopus.com/inward/record.url?scp=85079416510&partnerID=8YFLogxK
U2 - 10.1007/s11581-020-03488-7
DO - 10.1007/s11581-020-03488-7
M3 - Article
SN - 0947-7047
JO - Ionics
JF - Ionics
ER -
