Photovoltaic effect in Bi{sub 2}TeO{sub 5} photorefractive crystal

Journal Article · Mon Oct 12 00:00:00 EDT 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4933097· OSTI ID:22482240

Capovilla, Danilo Augusto ^[1]; Carvalho, Jesiel F.; Montenegro, Renata; Fabris, Zanine V. ^[2]; Frejlich, Jaime ^[3]

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1. GOMNI-Faculdade de Tecnologia/UNICAMP, Limeira (Brazil)
2. Instituto de Física/Universidade Federal de Goiás, Goiânia (Brazil)
3. Instituto de Física “Gleb Wataghin”/UNICAMP, Campinas (Brazil)

We report on the presence of a strong photovoltaic effect on nominally undoped photorefractive Bi{sub 2}TeO{sub 5} crystals and estimated their Glass photovoltaic constant and photovoltaic field for λ = 532 nm illumination. We directly measured the photovoltaic-based photocurrent in this material under λ = 532 nm wavelength laser light illumination and compared its behavior with that of a well known photovoltaic Fe-doped Lithium Niobate crystal. We also show the photovoltaic current to strongly depend on the polarization direction of light. Holographic diffraction efficiency oscillation during recording and the behavior of fringe-locked running holograms in self-stabilized experiments are also demonstrated here as additional indirect proofs of the photovoltaic nature of this material.

• OSTI ID: 22482240
• Journal Information: Applied Physics Letters, Vol. 107, Issue 15; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COMPARATIVE EVALUATIONS
CRYSTALS
CURRENTS
DIFFRACTION
DOPED MATERIALS
EFFICIENCY
HOLOGRAPHY
ILLUMINANCE
LASERS
LITHIUM
NIOBATES
OSCILLATIONS
PHOTOVOLTAIC EFFECT
POLARIZATION
WAVELENGTHS