Enhancement of photovoltaic properties with Nb modified (Bi, Na) TiO3-BaTiO3ferroelectric ceramics

L. Chen; B. C. Luo; N. Y. Chan; Jiyan Dai; M. Hoffman; S. Li; D. Y. Wang

doi:10.1016/j.jallcom.2013.10.207

Enhancement of photovoltaic properties with Nb modified (Bi, Na) TiO₃-BaTiO₃ferroelectric ceramics

L. Chen, B. C. Luo, N. Y. Chan, Jiyan Dai, M. Hoffman, S. Li, D. Y. Wang

Research output: Journal article publication › Journal article › Academic research › peer-review

29 Citations (Scopus)

Abstract

In this study, the photovoltaic properties of Nb doped (Bi0.5Na0.5) TiO3-xBaTiO3(BNBT) ferroelectric ceramics prepared by spark plasma sintering (SPS) were investigated and compared with the conventionally sintered (CS) samples. Much higher photocurrent and photovoltage were observed in SPS samples due to their more compact and homogenous microstructures with smaller grain size. Nb doping increases the photovoltaic response of SPS BNBT ceramics significantly. Optimal photovoltaic response is obtained for 1 at.% Nb doped SPS BNBT ceramics with a large above-bandgap photovoltage, showing the potential in future photovoltaic application.

Original language	English
Pages (from-to)	339-343
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	587
DOIs	https://doi.org/10.1016/j.jallcom.2013.10.207
Publication status	Published - 1 Jan 2014

Keywords

BNBT
Doping
Ferroelectrics
Photovoltaic
SPS

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

More information

10.1016/j.jallcom.2013.10.207

Cite this

@article{546d18daf5194897b6bfbedaa25d7fe5,

title = "Enhancement of photovoltaic properties with Nb modified (Bi, Na) TiO3-BaTiO3ferroelectric ceramics",

abstract = "In this study, the photovoltaic properties of Nb doped (Bi0.5Na0.5) TiO3-xBaTiO3(BNBT) ferroelectric ceramics prepared by spark plasma sintering (SPS) were investigated and compared with the conventionally sintered (CS) samples. Much higher photocurrent and photovoltage were observed in SPS samples due to their more compact and homogenous microstructures with smaller grain size. Nb doping increases the photovoltaic response of SPS BNBT ceramics significantly. Optimal photovoltaic response is obtained for 1 at.% Nb doped SPS BNBT ceramics with a large above-bandgap photovoltage, showing the potential in future photovoltaic application.",

keywords = "BNBT, Doping, Ferroelectrics, Photovoltaic, SPS",

author = "L. Chen and Luo, {B. C.} and Chan, {N. Y.} and Jiyan Dai and M. Hoffman and S. Li and Wang, {D. Y.}",

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T1 - Enhancement of photovoltaic properties with Nb modified (Bi, Na) TiO3-BaTiO3ferroelectric ceramics

AU - Chen, L.

AU - Luo, B. C.

AU - Chan, N. Y.

AU - Dai, Jiyan

AU - Hoffman, M.

AU - Li, S.

AU - Wang, D. Y.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - In this study, the photovoltaic properties of Nb doped (Bi0.5Na0.5) TiO3-xBaTiO3(BNBT) ferroelectric ceramics prepared by spark plasma sintering (SPS) were investigated and compared with the conventionally sintered (CS) samples. Much higher photocurrent and photovoltage were observed in SPS samples due to their more compact and homogenous microstructures with smaller grain size. Nb doping increases the photovoltaic response of SPS BNBT ceramics significantly. Optimal photovoltaic response is obtained for 1 at.% Nb doped SPS BNBT ceramics with a large above-bandgap photovoltage, showing the potential in future photovoltaic application.

AB - In this study, the photovoltaic properties of Nb doped (Bi0.5Na0.5) TiO3-xBaTiO3(BNBT) ferroelectric ceramics prepared by spark plasma sintering (SPS) were investigated and compared with the conventionally sintered (CS) samples. Much higher photocurrent and photovoltage were observed in SPS samples due to their more compact and homogenous microstructures with smaller grain size. Nb doping increases the photovoltaic response of SPS BNBT ceramics significantly. Optimal photovoltaic response is obtained for 1 at.% Nb doped SPS BNBT ceramics with a large above-bandgap photovoltage, showing the potential in future photovoltaic application.

KW - BNBT

KW - Doping

KW - Ferroelectrics

KW - Photovoltaic

KW - SPS

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JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

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