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Chinese Journal of Materials Research  2013, Vol. 27 Issue (5): 544-548    DOI:
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Photovoltaic Properties of ITO/PZT-Ag2O/Pt  Ferroelectric Diodes
DAI Zhihua, BAO Yuwen, ZHANG Jingjiao, SU Xiaodong** , ZHANG Lingjun
(Photovoltaic Research Institute of Soochow University & Canadian Solar Inc., Jiangsu Key Laboratory of Thin Films, Department of Physics of Soochow University, Suzhou 215006)
Cite this article: 

DAI Zhihua, BAO Yuwen, ZHANG Jingjiao, SU Xiaodong, ZHANG Lingjun. Photovoltaic Properties of ITO/PZT-Ag2O/Pt  Ferroelectric Diodes. Chinese Journal of Materials Research, 2013, 27(5): 544-548.

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Abstract  

PZT-Ag2O ferroelectric films were prepared successfully on the transparent ITO conductive glass substrate. The phase structure and surface morphology of the thin films prepared on different substrate temperatures were investigated. The PZT-Ag2O films showed good ferroelectric properties, and the ITO/PZT-Ag2O/Pt diodes indicated excellent photoelectric response at the visible spectrum. More interestingly, its photo-generated short-circuit photocurrent and open-circuit voltage varied with the poling voltages, and it mainly attributed to the ferroelectric depolarization field in the poled PZT-Ag2O films. A possible mechanism concerning the photovoltaic effect in the ITO/PZT-Ag2O/Pt diode characteristics was discussed. The magnitude of depolarization fields is varied with the applied voltages, resulting in hysteresis loop between the photo-generated short-circuit photocurrent or open-circuit voltage and applied voltages.

Key words:  inorganic non-metallic materials      PZT-Ag2O films      ITO glass substrate      hysteresis loop      ferroelectric photovoltaic property     
ZTFLH:  O484  

URL: 

https://www.cjmr.org/EN/     OR     https://www.cjmr.org/EN/Y2013/V27/I5/544

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