Effect of Pb/(Zr+Ti) molar ratio on the photovoltaic properties of lead zirconate-titanate ceramics

Nonaka, Kazuhiro; Akiyama, Morito; Hagio, Tsuyoshi; Takase, Akira

doi:10.1016/s0955-2219(98)00392-6

Cited by 29 publications

(30 citation statements)

References 12 publications

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“…Thus an enormous amount of effort has been focused on the design and optimization of FE materials in order to reach a lower band gap [4,[10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25]. Among them, the study and improvement of ferroelectric oxides are important, as these materials can be integrated into conventional electronics [26][27][28][29][30][31][32][33][34]. In particular, recently a ferroelectric perovskite (K,Ba)(Ni,Nb)O 3−δ (KBNNO) has been successfully synthesized and demonstrated to have a near-optimal band gap (1.39 eV), exhibiting good photovoltaic (PV) performance [35].…”

Section: Introductionmentioning

confidence: 99%

First-principles calculation of the bulk photovoltaic effect inKNbO3and (K,Ba)(Ni,Nb)O3−δ

Wang

Rappe

2015

Phys. Rev. B

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The connection between noncentrosymmetric materials' structure, electronic structure, and bulk photovoltaic performance remains not well understood. In particular, it is still unclear which photovoltaic (PV) mechanisms are relevant for the recently demonstrated visible-light ferroelectric photovoltaic (K,Ba)(Ni,Nb)O 3−δ . In this paper, we study the bulk photovoltaic effect (BPVE) of (K,Ba)(Ni,Nb)O 3−δ and KNbO 3 by calculating the shift current from first principles. The effects of structural phase, lattice distortion, oxygen vacancies, cation arrangement, composition, and strain on BPVE are systematically studied. We find that (K,Ba)(Ni,Nb)O 3−δ has a comparable shift current with that of the broadly explored BiFeO 3 , but for a much lower photon energy. In particular, the Glass coefficient of (K,Ba)(Ni,Nb)O 5 in a simple layered structure can be as large as 12 times that of BiFeO 3 . Furthermore, the nature of the wavefunctions dictates the eventual shift current yield, which can be significantly affected and engineered by changing the O vacancy location, cation arrangement, and strain. This is not only helpful for understanding other PV mechanisms that relate to the motion of the photocurrent carriers, but also provides guidelines for the design and optimization of PV materials.

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Section: Introductionmentioning

confidence: 99%

First-principles calculation of the bulk photovoltaic effect inKNbO3and (K,Ba)(Ni,Nb)O3−δ

Wang

Rappe

2015

Phys. Rev. B

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“…Eventually, serial connection of several junctions was assumed to explain the large photovoltages obtained in bulk ferroelectric ceramics. [18][19][20] Moreover, the effect of the UV radiation on the polarization hysteresis and fatigue was also studied. It was found that UV light illumination helps the polarization restoration after severe fatigue in polycrystalline PZT films.…”

Section: Introductionmentioning

confidence: 99%

Short-circuit photocurrent in epitaxial lead zirconate-titanate thin films

Pintilie

Vrejoiu

Rhun

et al. 2007

Journal of Applied Physics

154

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“…Some reports have been appeared from the point of view of the material aspect; e.g. the impurity doping effect (Nonaka et al 1995a,b), firing atmosphere effect (Nonaka et al 1995a,b), and molar ratio dependence (Nonaka et al 1999). But there have been very few reports seeking to clarify the mechanisms of the photovoltaic effect.…”

Section: Introductionmentioning

confidence: 99%

Preparation of ferroelectric ceramics in a film structure and their photovoltaic properties

et al. 2005

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This paper reports the formation of a newlayered film structure and the highly improved photovoltaic output of the lead lanthanum zirconate titanate (PLZT) employed. The new structural design is described using an upper top transparent indium tin oxide (ITO) electrode. The PLZT film structure exhibited V and lA output. The photovoltaic current of the PLZT film per unit width was more than 10 2 times larger than that of bulk PLZT, while the photovoltaic voltage per unit thickness in the layered film structure was almost the same as that in bulk ceramics and single crystals. These differences are due to the characteristics of the film structure and configuration of the electrode. The PLZT film also has the advantage of easily controllable parameters: film thickness, illuminated area, and illumination intensity. A simple model is used for the phenomenological explanation of the improved photovoltaic effect of the PLZT film.

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Effect of Pb/(Zr+Ti) molar ratio on the photovoltaic properties of lead zirconate-titanate ceramics

Cited by 29 publications

References 12 publications

First-principles calculation of the bulk photovoltaic effect inKNbO3and (K,Ba)(Ni,Nb)O3−δ

First-principles calculation of the bulk photovoltaic effect inKNbO3and (K,Ba)(Ni,Nb)O3−δ

Short-circuit photocurrent in epitaxial lead zirconate-titanate thin films

Preparation of ferroelectric ceramics in a film structure and their photovoltaic properties

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