Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/9202
Title: Enhancement of photovoltaic properties with Nb modified (Bi, Na) TiO 3-BaTiO3 ferroelectric ceramics
Authors: Chen, L
Luo, BC
Chan, NY
Dai, JY 
Hoffman, M
Li, S
Wang, DY
Keywords: BNBT
Doping
Ferroelectrics
Photovoltaic
SPS
Issue Date: 2014
Publisher: Elsevier
Source: Journal of alloys and compounds, 2014, v. 587, p. 339-343 How to cite?
Journal: Journal of alloys and compounds 
Abstract: In this study, the photovoltaic properties of Nb doped (Bi 0.5Na0.5) 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.
URI: http://hdl.handle.net/10397/9202
ISSN: 0925-8388
DOI: 10.1016/j.jallcom.2013.10.207
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