Diffraction efficiency growth of nano-scale holographic recording produced in a corona discharge

Bodurov, I; Yovcheva, T.; Vlaeva, I.; Viraneva, A.; Todorov, R.; Spassov, George; Sainov, S.

doi:10.1088/1742-6596/398/1/012053

Cited by 7 publications

(12 citation statements)

References 12 publications

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“…Additional information on the influence of the height of the moth eye texture of a perovskite solar cell is provided in the supporting information (Figure S5, Supporting Information). The average period and refractive index of the moth eye textured solar cell is 150 nm and 2.0, while period and refractive index of the biological structure is 200 nm and 1.5 . The effective period of the solar cells texture (p ZnO × n ZnO ) is therefore equal to the biological counterpart (p moth × n moth ).…”

Section: Solar Cell Device Structurementioning

confidence: 99%

“…The moth eye texture is realized by a hexagonal arrangement of parabolically shaped domes or nipples. [45][46][47][48] The effective period of the solar cells texture (p ZnO × n ZnO ) is therefore equal to the biological counterpart (p moth × n moth ). The height of the moth eye texture should be λ/(n 1 + n 2 ) to allow for an efficient coupling of the light in the structure and n 1 and n 2 are the two materials forming the model moth eye texture.…”

Section: Solar Cell Device Structurementioning

confidence: 99%

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Approaching Perfect Light Incoupling in Perovskite and Silicon Thin Film Solar Cells by Moth Eye Surface Textures

Qarony

Hossain

Dewan

et al. 2018

Advcd Theory and Sims

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Solar cells with increased short-circuit current density and energy conversion efficiency can be realized by integrating moth eye textures in the design of perovskite and amorphous silicon thin film solar cells. Broadband light incoupling in solar cells can be achieved by using hexagonally arranged arrays of nipples or domes with parabolically shaped surface profiles. The moth eye surface texture represents a refractive index grating that allows for an efficient incoupling of light in the solar cell while minimizing reflection losses. The light incoupling is studied for perovskite and amorphous silicon solar cells. Perovskite has a rather low refractive index of 2.5, while amorphous silicon exhibits a refractive index of 4.5 comparable to that of crystalline silicon. Due to largely different refractive indices, different device designs must be selected to allow for an efficient light incoupling in the solar cell. 3D finite-difference time-domain simulations are used for the optical modeling. Design guidelines are provided on how to realize perovskite and silicon thin film solar cells with high quantum efficiency and short-circuit current by using moth eye textures.

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Section: Solar Cell Device Structurementioning

confidence: 99%

Section: Solar Cell Device Structurementioning

confidence: 99%

Approaching Perfect Light Incoupling in Perovskite and Silicon Thin Film Solar Cells by Moth Eye Surface Textures

Qarony

Hossain

Dewan

et al. 2018

Advcd Theory and Sims

View full text Add to dashboard Cite

show abstract

“…To the best of our knowledge, the most reported metal‐oxide NPs incorporated into THPN are ZrO 2 , ZnO, TiO 2 , Ta 2 O 5 , GeO 2 , PbO, CeO 2 , Al 2 O 3 , SiO 2 , and BaTiO 3 . Among them, ZrO 2 NPs have a high refractive index of 2.2 ( λ = 633 nm) with a high and narrow optical bandgap energy of 5.3 eV 22–24 . ZrO 2 NPs are biologically and photochemically stable, making them more suitable for THPN 25 .…”

Section: Introductionmentioning

confidence: 99%

“…Among high‐refractive‐index metal‐oxide NPs, including ZrO 2 , ZnO, and TiO 2 , ZrO 2 have been introduced as essential nanomaterials for those optical applications due to their large optical bandgap and high chemical stability. ZrO 2 NPs have a high refractive index ( n = 2.2 at λ = 633 nm) 22 . The refractive indices of synthesized ZrO 2 NPs are different, depending on the synthetic method of NPs.…”

Section: Introductionmentioning

confidence: 99%

Zirconia nanocomposites and their applications as transparent advanced optical materials with high refractive index

Lee

Cho

Yoon

2023

Bulletin Korean Chem Soc

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Polymer nanocomposites, prepared by incorporating functional nanoparticles (NPs) into a polymer matrix, have advantages of utilizing functionalities of polymers and NPs. Among them, transparent high-refractive-index polymer nanocomposites (THPNs), prepared by incorporating highly refractive NPs into polymer matrices, are advantageous for effectively manipulating light. This review focuses on the introduction of fabrication of THPN prepared by incorporating inorganic-oxide NPs, especially zirconia (ZrO 2 ), and its characteristics as an optical material. ZrO 2 NPs have a high refractive index and high transmittance in visible light regions with high and narrow optical bandgap energy. Since ZrO 2 NPs are harmless to humans and physically and chemically stable, they are suitable for applications of advanced optical materials for display and energy devices. Various fabrication methods of THPN with ZrO 2 NPs and surface modifications of ZrO 2 NPs to prevent agglomeration are introduced. Principles and specific applications, which THPN could work with and for, are introduced as well.

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“…We note that the effect of corona discharge is more emphasized in thin SCG layers. For instance, for SCG films with thicknesses of 29 and 56 nm, the use of corona dis-charge-unlike conventional methods for hologram recording (i.e., without corona discharge)-resulted in a 30-and 10-fold increase in the maximum diffraction efficiency, respectively, due to the LIST effect [12].…”

Section: Introductionmentioning

confidence: 99%

Effect of Corona Discharge on the Optical Properties of Thin-Film Cu–As2Se3 Structures

2020

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The effect that corona discharge has on holographic recording of diffraction gratings in a thin-film Cu−As 2 Se 3 structure deposited on glass by thermal vacuum evaporation is studied. The use of negative corona discharge during holographic recording enhances the holographic sensitivity of the Cu−As 2 Se 3 structure and the diffraction efficiency of inscribed gratings. Irradiation of the Cu−As 2 Se 3 structure with actinic light results in photodarkening in the spectral region in which the structure exhibits a strongly absorption, while the region characterized by a weaker absorption becomes more transparent. The effect of photoinduced transparency is enhanced if samples are treated using positive corona discharge and with negative corona discharge the effect is weakened. The experimental results are explained qualitatively, assuming the diffusion of Cu + ions into the As 2 Se 3 layer.

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Diffraction efficiency growth of nano-scale holographic recording produced in a corona discharge

Cited by 7 publications

References 12 publications

Approaching Perfect Light Incoupling in Perovskite and Silicon Thin Film Solar Cells by Moth Eye Surface Textures

Approaching Perfect Light Incoupling in Perovskite and Silicon Thin Film Solar Cells by Moth Eye Surface Textures

Zirconia nanocomposites and their applications as transparent advanced optical materials with high refractive index

Effect of Corona Discharge on the Optical Properties of Thin-Film Cu–As2Se3 Structures

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