Photovoltaic effect and photopolarization in Pb [(Mg1/3 Nb2/3)0.68 Ti0.32] O3 crystal

A. S. Makhort; F. Chevrier; Dmytro Kundys; B. Doudin; B. Kundys

doi:10.1103/PhysRevMaterials.2.012401

Photovoltaic effect and photopolarization in Pb [(Mg_1/3 Nb_2/3)_0.68 Ti_0.32] O₃ crystal

A. S. Makhort, F. Chevrier, Dmytro Kundys, B. Doudin, B. Kundys

Research output: Contribution to journal › Article › peer-review

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Abstract

Ferroelectric photovoltaic materials offer an alternative to modern photovoltaic development by overcoming the bandgap limitations. However, the number of known compounds and photovoltaic efficiencies remain low. Here, we report the discovery of a photovoltaic effect in the undoped lead magnesium niobate – lead titanate crystal and a significant improvement in the photovoltaic response under properly chosen electric fields and temperatures. The photovoltaic (PV) effect is maximal near the electric-field-driven ferroelectric (FE) dipole reorientation and also increases by over 3 fold near FE Tc. Moreover, at FE saturation, the photovoltaic response clearly exhibits remanent and transient effects. The combination of such tuning possibility together with transient-remanent variations establishes photoferroelectric crystals as emerging elements for photovoltaicity and optoelectronics, with particular relevance to the all-optical storage and information processing.

Original language	English
Article number	012401
Journal	Physical Review Materials
Volume	2
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevMaterials.2.012401
Publication status	Published - 12 Jan 2018

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title = "Photovoltaic effect and photopolarization in Pb [(Mg1/3 Nb2/3)0.68 Ti0.32] O3 crystal",

abstract = "Ferroelectric photovoltaic materials offer an alternative to modern photovoltaic development by overcoming the bandgap limitations. However, the number of known compounds and photovoltaic efficiencies remain low. Here, we report the discovery of a photovoltaic effect in the undoped lead magnesium niobate – lead titanate crystal and a significant improvement in the photovoltaic response under properly chosen electric fields and temperatures. The photovoltaic (PV) effect is maximal near the electric-field-driven ferroelectric (FE) dipole reorientation and also increases by over 3 fold near FE Tc. Moreover, at FE saturation, the photovoltaic response clearly exhibits remanent and transient effects. The combination of such tuning possibility together with transient-remanent variations establishes photoferroelectric crystals as emerging elements for photovoltaicity and optoelectronics, with particular relevance to the all-optical storage and information processing. ",

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AU - Doudin, B.

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AB - Ferroelectric photovoltaic materials offer an alternative to modern photovoltaic development by overcoming the bandgap limitations. However, the number of known compounds and photovoltaic efficiencies remain low. Here, we report the discovery of a photovoltaic effect in the undoped lead magnesium niobate – lead titanate crystal and a significant improvement in the photovoltaic response under properly chosen electric fields and temperatures. The photovoltaic (PV) effect is maximal near the electric-field-driven ferroelectric (FE) dipole reorientation and also increases by over 3 fold near FE Tc. Moreover, at FE saturation, the photovoltaic response clearly exhibits remanent and transient effects. The combination of such tuning possibility together with transient-remanent variations establishes photoferroelectric crystals as emerging elements for photovoltaicity and optoelectronics, with particular relevance to the all-optical storage and information processing.

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