Atmospheric pressure chemical vapor deposition of indium oxide nanostructured films for photoelectrochemical application

被引：9

作者：

Aper, T. M. ^{[1
,3
]}

Yam, F. K. ^{[1
]}

Saw, K. G. ^{[2
]}

Beh, Khi Poay ^{[1
]}

Chahrour, Khaled M. ^{[1
]}

机构：

[1] Univ Sains Malaysia, Sch Phys, George Town 11800, Malaysia

[2] Univ Sains Malaysia, Sch Distance Educ, George Town 11800, Malaysia

[3] Benue State Univ, Dept Phys, PMB 102119, Makurdi, Nigeria

来源：

RESULTS IN PHYSICS | 2021年 / 24卷

关键词：

Indium oxide nanostructures; Photoelectrochemical performance; Chemical vapor deposition; PHOTOCATALYTIC ACTIVITY; THIN-FILMS; SOL-GEL; WATER; GROWTH; ARRAYS;

D O I：

10.1016/j.rinp.2021.104187

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, indium oxide nanostructured films were synthesized by hydrogen assisted atmospheric pressure chemical vapor deposition technique at various deposition temperatures. The surface morphology, crystallinity, and optical properties of the synthesized films were investigated by field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), and UV-vis-NIR measurement, respectively. Photoelectrochemical (PEC) activity of the fabricated films was investigated in a 0.5 M aqueous solution of KOH under simulated solar illumination (150 W Xenon arc lamp). The result of the indium oxide photoanodes' PEC performance shows that the sample grown at 950 degrees C exhibited optimal performance. It generates an overall photocurrent density of 2.56 mA/cm(2), with an incident photon to current conversion efficiency (IPCE) of 37% around lambda = 390 nm of the incident spectrum. The sample also recorded a significant applied bias to photon conversion efficiency (ABPE) of 0.60%. The superiority of the PEC performance of the sample could be attributed to the film composition, crystallinity and bandgap reduction, as well as low flat band potential and enhanced charge carrier density.

引用

页数：8

共 51 条

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