Bulk photovoltaic and photorefractive effects in a piezoelectric La3Ga5SiO14: Fe crystal

Batirov, T. M.; Verkhovskaya, K. A.; Dzhalalov, R. K.; Dubovik, E.; Mill, B. V.; Fridkin, V. M.

doi:10.1134/1.171154

Cited by 6 publications

(11 citation statements)

References 4 publications

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“…4 are seen to greatly exceed the typical values for ferroelectric crystals, such as the experimentally determined β xxx ¼ 3.1 × 10 −12 V −1 in La 3 Ga 5 SiO 14 ∶Fe [40]. The obtainedβ zxx is also found to exceed the anomalously high values for bismuth ferrite known to outperform typical ferroelectric materials by about 5 orders of magnitude in the thin-film configuration [β ijj around ð2-3Þ × 10 −4 V −1 according to the recent measurements [53] and first-principles theoretical calculations [39]].…”

Section: Directional Photoemission From Conical Nanoparticlesmentioning

confidence: 81%

“…It is expected that chiral (or planar chiral) nanoparticles would provide the plasmonic analog to the circular bulk photovoltaic effect [30,40], described in analogy with Eq. (9) as…”

Section: Discussionmentioning

confidence: 99%

“…(8) is nonlinear (quadratic) with respect to the field strength E. We can also rewrite Eq. (8) in a modified form [40],…”

Section: Theoretical Backgroundmentioning

confidence: 99%

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Giant Photogalvanic Effect in Noncentrosymmetric Plasmonic Nanoparticles

et al. 2014

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Photoelectric properties of noncentrosymmetric, similarly oriented metallic nanoparticles embedded in a homogeneous semiconductor matrix are theoretically studied. Because of the asymmetric shape of the nanoparticle boundary, photoelectron emission acquires a preferred direction, resulting in a photocurrent flow in that direction when nanoparticles are uniformly illuminated by a homogeneous plane wave. This effect is a direct analogy of the photogalvanic (or bulk photovoltaic) effect known to exist in media with noncentrosymmetric crystal structure, such as doped lithium niobate or bismuth ferrite, but is several orders of magnitude stronger. Termed the giant plasmonic photogalvanic effect, the reported phenomenon is valuable for characterizing photoemission and photoconductive properties of plasmonic nanostructures and can find many uses for photodetection and photovoltaic applications.

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Section: Directional Photoemission From Conical Nanoparticlesmentioning

confidence: 81%

“…It is expected that chiral (or planar chiral) nanoparticles would provide the plasmonic analog to the circular bulk photovoltaic effect [30,40], described in analogy with Eq. (9) as…”

Section: Discussionmentioning

confidence: 99%

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Giant Photogalvanic Effect in Noncentrosymmetric Plasmonic Nanoparticles

et al. 2014

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“…34 The obtainedβ zxx is also found to exceed the anomalously high values for bismuth ferrite known to outperform typical ferroelectric materials by about five orders of magnitude in the thin-film configuration (β i j j around 2 . .…”

Section: Plasmonic Bulk Photovoltaic Effectmentioning

confidence: 93%

“…The components of the tensor β have the dimension of [V] −1 in SI units and are related to the Glass coefficients for the high-voltage BPVE in nonlinear crystals. 34,35 One can then rewrite Eq. (7) in the same manner, introducing the plasmonic equivalent of Eq.…”

Section: Surface Photoelectric Effect In Plasmonic Nanoparticlesmentioning

confidence: 99%

Bulk photovoltaic effect in photoconductive metamaterials based on cone-shaped nanoparticles

Zhukovsky¹,

Babicheva

Uskov

et al. 2014

SPIE Proceedings

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Photoelectric properties of metamaterials comprising asymmetrically shaped, similarly oriented metallic nanoparticles embedded in a homogeneous semiconductor matrix are theoretically and numerically studied. The asymmetric shape of the nanoparticles is found to result in the existence of a preferred direction where "hot" photoelectrons are emitted from the nanoparticle surface under the action of the localized plasmonic resonance excited in the nanoparticles. The resulting directional photocurrent flow occurring when nanoparticles are uniformly illuminated by a homogeneous plane wave is the direct analogy of the photogalvanic effect known to exist in naturally occurring non-centrosymmetric media. This plasmonic bulk photovoltaic effect is intermediate between the inner photoelectric effect in bulk media and the outer photoelectric effect at macroscopic interfaces. The results obtained are valuable for characterizing photoemission and photoconductive properties of plasmonic nanostructures. They can find many uses for photodetection-related and photovoltaic applications.

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Functional Oxides for Photoneuromorphic Engineering: Toward a Solar Brain

Pérez‐Tomás

2019

Adv Materials Inter

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New device concepts and new computing principles are needed to balance our ever-growing appetite for data and information with the realization of the goals of increased energy efficiency, reduction in CO 2 emissions and the circular economy. Neuromorphic or synaptic electronics is an emerging field of research aiming to overcome the current computer's Von-Neumann bottleneck by building artificial neuronal systems to mimic the extremely energy efficient biological synapses. The introduction of photovoltaic and/or photonic aspects into these neuromorphic architectures will produce self-powered adaptive electronics but may also open up new possibilities in artificial neuroscience, artificial neural communications, sensing and machine learning which would enable, in turn, a new era for computational systems owing to the possibility of attaining high bandwidths with much reduced power consumption. This perspective is focused on recent progress in the implementation of functional oxide thinfilms into photovoltaic and neuromorphic applications towards the envisioned goal of selfpowered photovoltaic neuromorphic systems or a solar brain.

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Bulk photovoltaic and photorefractive effects in a piezoelectric La3Ga5SiO14: Fe crystal

Cited by 6 publications

References 4 publications

Giant Photogalvanic Effect in Noncentrosymmetric Plasmonic Nanoparticles

Giant Photogalvanic Effect in Noncentrosymmetric Plasmonic Nanoparticles

Bulk photovoltaic effect in photoconductive metamaterials based on cone-shaped nanoparticles

Functional Oxides for Photoneuromorphic Engineering: Toward a Solar Brain

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