Pb_0.95 La_0.05 Zr_0.54 Ti_0.46 O_3 thin films for photovoltaic applications

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dc.contributor Li, Dawen
dc.contributor Kung, Patrick
dc.contributor Abu Qahouq, Jaber A.
dc.contributor Pan, Shanlin
dc.contributor.advisor Kotru, Sushma
dc.contributor.author Vasudevan Nampoori, Harshan
dc.date.accessioned 2017-03-01T16:34:11Z
dc.date.available 2017-03-01T16:34:11Z
dc.date.issued 2012
dc.identifier.other u0015_0000001_0000993
dc.identifier.other VasudevanNampoori_alatus_0004D_11173
dc.identifier.uri https://ir.ua.edu/handle/123456789/1480
dc.description Electronic Thesis or Dissertation
dc.description.abstract Ferroelectrics have shown potential as a promising alternative material for future photovoltaic applications. Observance of high open circuit voltages in ferroelectric thin films, have generated considerable interest in the field of ferroelectric photovoltaic in recent years. The field of ferroelectric photovoltaic is evolving and not yet completely understood compared to the semiconductor based photovoltaic technology. This dissertation presents photovoltaic properties of ferroelectric Pb_0.95 La_0.05 Zr_0.54 Ti_0.46 O_3 thin films. The films were fabricated by solution based methods and spin coating technique. The post annealing process on these films was optimized to achieve the desired ferroelectric and dielectric properties. A measurement setup was established to study the PV characteristic of the devices. Dependence of current-voltage (I-V) behavior of the cells on parameters such as electrical poling, annealing temperature, nature of top electrodes, and intensity of illumination, was investigated. The photovoltaic response was shown to improve by using electrodes with low work functions. An electric circuit model was developed to simulate the behavior of a single ferroelectric photovoltaic cell and the dependence of open circuit voltage (Voc) and short circuit current (Isc) on light intensity.
dc.format.extent 116 p.
dc.format.medium electronic
dc.format.mimetype application/pdf
dc.language English
dc.language.iso en_US
dc.publisher University of Alabama Libraries
dc.relation.ispartof The University of Alabama Electronic Theses and Dissertations
dc.relation.ispartof The University of Alabama Libraries Digital Collections
dc.relation.hasversion born digital
dc.rights All rights reserved by the author unless otherwise indicated.
dc.subject.other Electrical engineering
dc.subject.other Materials Science
dc.subject.other Engineering
dc.title Pb_0.95 La_0.05 Zr_0.54 Ti_0.46 O_3 thin films for photovoltaic applications
dc.type thesis
dc.type text
etdms.degree.department University of Alabama. Dept. of Electrical and Computer Engineering
etdms.degree.discipline Electrical and Computer Engineering
etdms.degree.grantor The University of Alabama
etdms.degree.level doctoral
etdms.degree.name Ph.D.

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