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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47178

Title: Photovoltaic property of sputtered BiFeO3 thin films
Authors: H. W. Chang
S. U. Jen
Contributors: 國立臺灣海洋大學:光電科學研究所
Keywords: Sputtering method
Photovoltaic effect
Multiferroic BiFeO3 films
Date: 2013-06
Issue Date: 2018-07-04T05:56:44Z
Publisher: Journal of Alloys and Compounds
Abstract: Abstract: Photovoltaic (PV) property of sputter-deposited BiFeO3 (BFO) polycrystalline films on Pt/Ti/SiO2/Si(1 0 0) substrates has been studied. Isotropic single phase perovskite BFO is obtained in the growth temperature (Tg) range of 350–450 °C. The increase of Tg and film thickness promote grain growth resulting in roughened surface. Significant PV effect under laser illumination with wavelength of 405 nm is obtained. Short-circuit photocurrent density (Jsc) increases with the increase of laser intensity (I). The Jsc at I = 220 mW/cm2 (Jmax) are increased with the increase of the growth temperature and BFO thickness. The correlation between Jmax and the size of coherent scattering domain indicates that PV property is highly related to the structural defects. Furthermore, PV effect is reduced at higher Tg = 500 °C or for larger t = 400 nm due to the appearance of the impurity phase and rougher surface.
Relation: 574(15) pp.402-406
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47178
Appears in Collections:[光電科學研究所] 期刊論文

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