Elaboration and characterization of nanoplate structured [alpha]-Fe^sub 2^O^sub 3^ films by Ag^sub 3^PO^sub 4

Elaboration and characterization of nanoplate structured [alpha]-Fe^sub 2^O^sub 3^ films by Ag^sub 3^PO^sub 4

A new strategy for surface treatment of hematite nanoplates for efficient photoelectrochemical (PEC) performances is proposed. Silver orthophosphate (Ag^sub 3^PO^sub 4^) has been adopted to mediate the formation of α-Fe^sub 2^O^sub 3^ films. Phosphate ions in Ag^sub 3^PO^sub 4^ is found to cause a s...

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Veröffentlicht in:Solar energy 2016-10, Vol.135, p.274
Hauptverfasser: Zhang, Chuangli, Wu, Quanping, Ke, Xuebin, Ren, Yajun, Xue, Song, Wang, Hongyan
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Sprache:eng
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Annealing
Energy efficiency
Ions
Morphology
Solar energy
Thin films
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creator Zhang, Chuangli
Wu, Quanping
Ke, Xuebin
Ren, Yajun
Xue, Song
Wang, Hongyan
description A new strategy for surface treatment of hematite nanoplates for efficient photoelectrochemical (PEC) performances is proposed. Silver orthophosphate (Ag^sub 3^PO^sub 4^) has been adopted to mediate the formation of α-Fe^sub 2^O^sub 3^ films. Phosphate ions in Ag^sub 3^PO^sub 4^ is found to cause a significant morphology change during annealing process, from β-FeOOH nanorod arrays to hematite nanoplates. Meanwhile, Ag ions is doped into α-Fe^sub 2^O^sub 3^ film. The obtained nanoplate structured Fe^sub 2^O^sub 3^-Ag-P films demonstrate much higher photoelectrochemical performance as photoanodes than the bare Fe^sub 2^O^sub 3^ nanorod thin films. The effects of phosphate and silver ions on the morphology, surface characteristics and the PEC properties of the photoanodes are investigated.
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subjects Annealing
Energy efficiency
Ions
Morphology
Solar energy
Thin films
title Elaboration and characterization of nanoplate structured [alpha]-Fe^sub 2^O^sub 3^ films by Ag^sub 3^PO^sub 4
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