Tunable photoelectrochemical performance of Au/BiFeO3 heterostructure

Yen Lin Huang, Wei Sea Chang, Chien Van Nguyen, Heng Jui Liu, Kai An Tsai, Jhih Wei Chen, Ho Hung Kuo, Wen Yen Tzeng, Yi Chun Chen, Chung Lin Wu, Chih Wei Luo, Yung Jung Hsu, Ying Hao Chu

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Ferroelectric photoelectrodes, other than conventional semiconductors, are alternative photo-absorbers in the process of water splitting. However, the capture of photons and efficient transfer of photo-excited carriers remain as two critical issues in ferroelectric photoelectrodes. In this work, we overcome the aforementioned issues by decorating the ferroelectric BiFeO3 (BFO) surface with Au nanocrystals, and thus improving the photoelectrochemical (PEC) performance of BFO film. We demonstrate that the internal field induced by the spontaneous polarization of BFO can (1) tune the efficiency of the photo-excited carriers' separation and charge transfer characteristics in bare BFO photoelectrodes, and (2) modulate an extra optical absorption within the visible light region, created by the surface plasmon resonance excitation of Au nanocrystals to capture more photons in the Au/BFO heterostructure. This study provides key insights for understanding the tunable features of PEC performance, composed of the heterostructure of noble metals and ferroelectric materials.

Original languageEnglish
Pages (from-to)15795-15801
Number of pages7
JournalNanoscale
Volume8
Issue number34
DOIs
Publication statusPublished - 2016 Sep 14

Fingerprint

Ferroelectric materials
Heterojunctions
Nanocrystals
Photons
Surface plasmon resonance
Precious metals
Light absorption
Charge transfer
Polarization
Semiconductor materials
Water

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Huang, Y. L., Chang, W. S., Van Nguyen, C., Liu, H. J., Tsai, K. A., Chen, J. W., ... Chu, Y. H. (2016). Tunable photoelectrochemical performance of Au/BiFeO3 heterostructure. Nanoscale, 8(34), 15795-15801. https://doi.org/10.1039/c6nr04997d
Huang, Yen Lin ; Chang, Wei Sea ; Van Nguyen, Chien ; Liu, Heng Jui ; Tsai, Kai An ; Chen, Jhih Wei ; Kuo, Ho Hung ; Tzeng, Wen Yen ; Chen, Yi Chun ; Wu, Chung Lin ; Luo, Chih Wei ; Hsu, Yung Jung ; Chu, Ying Hao. / Tunable photoelectrochemical performance of Au/BiFeO3 heterostructure. In: Nanoscale. 2016 ; Vol. 8, No. 34. pp. 15795-15801.
@article{e2b932d2480f494f894abc1a4fde23df,
title = "Tunable photoelectrochemical performance of Au/BiFeO3 heterostructure",
abstract = "Ferroelectric photoelectrodes, other than conventional semiconductors, are alternative photo-absorbers in the process of water splitting. However, the capture of photons and efficient transfer of photo-excited carriers remain as two critical issues in ferroelectric photoelectrodes. In this work, we overcome the aforementioned issues by decorating the ferroelectric BiFeO3 (BFO) surface with Au nanocrystals, and thus improving the photoelectrochemical (PEC) performance of BFO film. We demonstrate that the internal field induced by the spontaneous polarization of BFO can (1) tune the efficiency of the photo-excited carriers' separation and charge transfer characteristics in bare BFO photoelectrodes, and (2) modulate an extra optical absorption within the visible light region, created by the surface plasmon resonance excitation of Au nanocrystals to capture more photons in the Au/BFO heterostructure. This study provides key insights for understanding the tunable features of PEC performance, composed of the heterostructure of noble metals and ferroelectric materials.",
author = "Huang, {Yen Lin} and Chang, {Wei Sea} and {Van Nguyen}, Chien and Liu, {Heng Jui} and Tsai, {Kai An} and Chen, {Jhih Wei} and Kuo, {Ho Hung} and Tzeng, {Wen Yen} and Chen, {Yi Chun} and Wu, {Chung Lin} and Luo, {Chih Wei} and Hsu, {Yung Jung} and Chu, {Ying Hao}",
year = "2016",
month = "9",
day = "14",
doi = "10.1039/c6nr04997d",
language = "English",
volume = "8",
pages = "15795--15801",
journal = "Nanoscale",
issn = "2040-3364",
publisher = "Royal Society of Chemistry",
number = "34",

}

Huang, YL, Chang, WS, Van Nguyen, C, Liu, HJ, Tsai, KA, Chen, JW, Kuo, HH, Tzeng, WY, Chen, YC, Wu, CL, Luo, CW, Hsu, YJ & Chu, YH 2016, 'Tunable photoelectrochemical performance of Au/BiFeO3 heterostructure', Nanoscale, vol. 8, no. 34, pp. 15795-15801. https://doi.org/10.1039/c6nr04997d

Tunable photoelectrochemical performance of Au/BiFeO3 heterostructure. / Huang, Yen Lin; Chang, Wei Sea; Van Nguyen, Chien; Liu, Heng Jui; Tsai, Kai An; Chen, Jhih Wei; Kuo, Ho Hung; Tzeng, Wen Yen; Chen, Yi Chun; Wu, Chung Lin; Luo, Chih Wei; Hsu, Yung Jung; Chu, Ying Hao.

In: Nanoscale, Vol. 8, No. 34, 14.09.2016, p. 15795-15801.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Tunable photoelectrochemical performance of Au/BiFeO3 heterostructure

AU - Huang, Yen Lin

AU - Chang, Wei Sea

AU - Van Nguyen, Chien

AU - Liu, Heng Jui

AU - Tsai, Kai An

AU - Chen, Jhih Wei

AU - Kuo, Ho Hung

AU - Tzeng, Wen Yen

AU - Chen, Yi Chun

AU - Wu, Chung Lin

AU - Luo, Chih Wei

AU - Hsu, Yung Jung

AU - Chu, Ying Hao

PY - 2016/9/14

Y1 - 2016/9/14

N2 - Ferroelectric photoelectrodes, other than conventional semiconductors, are alternative photo-absorbers in the process of water splitting. However, the capture of photons and efficient transfer of photo-excited carriers remain as two critical issues in ferroelectric photoelectrodes. In this work, we overcome the aforementioned issues by decorating the ferroelectric BiFeO3 (BFO) surface with Au nanocrystals, and thus improving the photoelectrochemical (PEC) performance of BFO film. We demonstrate that the internal field induced by the spontaneous polarization of BFO can (1) tune the efficiency of the photo-excited carriers' separation and charge transfer characteristics in bare BFO photoelectrodes, and (2) modulate an extra optical absorption within the visible light region, created by the surface plasmon resonance excitation of Au nanocrystals to capture more photons in the Au/BFO heterostructure. This study provides key insights for understanding the tunable features of PEC performance, composed of the heterostructure of noble metals and ferroelectric materials.

AB - Ferroelectric photoelectrodes, other than conventional semiconductors, are alternative photo-absorbers in the process of water splitting. However, the capture of photons and efficient transfer of photo-excited carriers remain as two critical issues in ferroelectric photoelectrodes. In this work, we overcome the aforementioned issues by decorating the ferroelectric BiFeO3 (BFO) surface with Au nanocrystals, and thus improving the photoelectrochemical (PEC) performance of BFO film. We demonstrate that the internal field induced by the spontaneous polarization of BFO can (1) tune the efficiency of the photo-excited carriers' separation and charge transfer characteristics in bare BFO photoelectrodes, and (2) modulate an extra optical absorption within the visible light region, created by the surface plasmon resonance excitation of Au nanocrystals to capture more photons in the Au/BFO heterostructure. This study provides key insights for understanding the tunable features of PEC performance, composed of the heterostructure of noble metals and ferroelectric materials.

UR - http://www.scopus.com/inward/record.url?scp=84984645854&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84984645854&partnerID=8YFLogxK

U2 - 10.1039/c6nr04997d

DO - 10.1039/c6nr04997d

M3 - Article

AN - SCOPUS:84984645854

VL - 8

SP - 15795

EP - 15801

JO - Nanoscale

JF - Nanoscale

SN - 2040-3364

IS - 34

ER -

Huang YL, Chang WS, Van Nguyen C, Liu HJ, Tsai KA, Chen JW et al. Tunable photoelectrochemical performance of Au/BiFeO3 heterostructure. Nanoscale. 2016 Sep 14;8(34):15795-15801. https://doi.org/10.1039/c6nr04997d