Properties of perovskite ferroelectrics deposited on F doped SnO 2 electrodes and the prospect of their integration into perovskite solar cells

Pintilie, I.; Stancu, V.; Tomulescu, Andrei Gabriel; Radu, Roxana; Stan, C. Besleaga; Balescu, Liliana Marinela; Pintilie, L.

doi:10.1016/j.matdes.2017.09.013

Cited by 13 publications

(9 citation statements)

References 56 publications

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Section: Introductionmentioning

confidence: 99%

“…It has the best contact with Si and forms a highly stable nanocrystal electron transport layer (ETL) in devices such as organic light-emitting diodes (OLEDs) and perovskite solar cells. 8,9 The United States Geological Survey (USGS) reports that 31,000 tons of tin were produced in 2019, with China accounting for 27% of the total. 10 Tin-based materials, especially SnO 2 , have attracted a lot of attention in the field of sensors because they have the most chemically and thermally stable oxidation states and are amazingly sensitive to various gas species.…”

Section: Introductionmentioning

confidence: 99%

“…F-doped SnO 2 has the highest work function compared to other transparent conductive oxide materials. It has the best contact with Si and forms a highly stable nanocrystal electron transport layer (ETL) in devices such as organic light-emitting diodes (OLEDs) and perovskite solar cells. , …”

Section: Introductionmentioning

confidence: 99%

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First-Principles Exploration into the Physical and Chemical Properties of Certain Newly Identified SnO₂ Polymorphs

et al. 2022

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Tin dioxide (SnO 2 ) is one of the transparent conductive oxides that has aroused the interest of researchers due to its wide range of applications. SnO 2 exists in a variety of polymorphs with different atomic structures and Sn–O connectivity. However, there are no comprehensive studies on the physical and chemical properties of SnO 2 polymorphs. For the first time, we investigated the structural stability and ground-state properties of 20 polymorphs in the sequence of experimental structures determined by density functional theory. We used a systematic analytical method to determine the viability of polymorphs for practical applications. Among the structurally stable polymorphs, Fm 3̅ m , I 4 1 / amd , and Pnma-II are dynamically unstable. As far as we know, no previous research has investigated the electronic properties of SnO 2 polymorphs from the hybrid functional of Heyd, Scuseria, and Erhzerhof (HSE06) except P 4 2 / mnm , with calculated band gap values ranging from 2.15 to 3.35 eV. The dielectric properties of the polymorphs have been reported, suggesting that SnO 2 polymorphs are also suitable for energy storage applications. The bonding nature of the global minimum rutile structure is analyzed from charge density, charge transfer, and electron localization function. The Imma -SnO 2 polymorph is mechanically unstable, while the remaining polymorphs met all stability criteria. Further, we calculated Raman and IR spectra, elastic moduli, anisotropic factors, and the direction-dependent elastic moduli of stable polymorphs. Although there are many polymorphic forms of SnO 2 , rutile is a promising candidate for many applications; however, we investigated the feasibility of the remaining polymorphs for practical applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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First-Principles Exploration into the Physical and Chemical Properties of Certain Newly Identified SnO₂ Polymorphs

et al. 2022

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“…Though similar kind of behavior has been noticed in several works with FTO bottom electrode based capacitor devices, the probable mechanism behind this is still undefined. [21][22][23][24] As it has been noticed in ln I versus ln V analysis that the slope increases sharply with increasing field at both sides and thus indicates the contribution of space charge limited current. The capacitance versus electric field loops exhibit a drastic increase in capacitance after the ferroelectric switching occurs.…”

Section: Polarization-electric Field Studymentioning

confidence: 82%

“…With increasing thickness, the surface roughness also enhances and needs a systematic evaluation of its effect upon the ferroelectric characteristics. Though FTO has been excessively used in inorganic FeRAM devices 21–23 and in solar cells 24 because of their mechanical stability, very few reports exist in organic FeRAM 25 devices. Literature reveals that a rough electrode can also cause excess leakage current in the device and as well a sharp enhancement in electrical capacitance 26,27 .…”

Section: Introductionmentioning

confidence: 99%

Rough FTO electrode interface effect upon ferroelectric switching dynamics in Ag/P(VDF‐HFP)/FTO capacitor structures

Roy

Joseph

Gangineni

2023

J of Applied Polymer Sci

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Rough FTO electrode interface effect upon the characteristic ferroelectric polarization parameters and switching dynamics in Ag/P(VDF‐HFP)/FTO junctions is systematically evaluated by varying electric field amplitude and frequency. Structural and microstructural studies confirm the ferroelectric phase formation of P(VDF‐HFP) on FTO surface. Tilted rectangular P‐E loops have been recorded in the applied fields ranging over 156.25–468.75 MV/m measured between 250 mHz and 5 Hz frequency ranges. Giant saturation of 21.7 μC/cm2 and remnant polarization of 34.9 μC/cm2 has been noted at low frequencies due to the influence of high electric field induced leakage currents. The coercive field, saturation and remnant polarization response with increase in electric field amplitude and frequency of the applied signal are well fitted with classic domain growth model proposed by Kolmogorov‐Avrami‐Ishibashi. A switching time scales of 32.2–693 ms has been observed for forward switching while for backward switching it is noted as 22.1–618.8 ms, when measured at frequencies from 5 Hz to 250 mHz. Furthermore, the tilted P‐E loops are attributed to the excessive leakage currents due to the high surface roughness of FTO bottom electrode.

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Reticulated Mesoporous TiO₂ Scaffold, Fabricated by Spray Coating, for Large‐Area Perovskite Solar Cells

et al. 2019

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Development of reproducible, low‐cost fabrication technologies that are readily adaptable to large‐scale production, is one of the main challenges in the field of perovskite solar cells (PSCs). So far, for all the other layers in a solar cell, large‐area deposition methods have been adapted, except for mesoporous fabrication. Herein, the fabrication of mesoporous TiO2 scaffolds using a large‐area deposition technique, such as spray coating, is shown. Moreover, this technique induces the formation of a very specific reticulated structure with well‐delimited, oval‐shaped cavities. The cavities have irregular dimensions, with diameters in the range of 3–7 μm, ≈350 nm height, resulting in an overall increase in roughness of one order of magnitude, compared with the spin‐coated mesoporous scaffold. Using this rough structured mesoporous TiO2 in PSCs not only does not affect the efficiency of solar cells but actually improves it from an average of 10% to 12% in comparison with the devices containing a spin‐coated mesoporous scaffold.

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Properties of perovskite ferroelectrics deposited on F doped SnO 2 electrodes and the prospect of their integration into perovskite solar cells

Cited by 13 publications

References 56 publications

First-Principles Exploration into the Physical and Chemical Properties of Certain Newly Identified SnO₂ Polymorphs

First-Principles Exploration into the Physical and Chemical Properties of Certain Newly Identified SnO₂ Polymorphs

Rough FTO electrode interface effect upon ferroelectric switching dynamics in Ag/P(VDF‐HFP)/FTO capacitor structures

Reticulated Mesoporous TiO₂ Scaffold, Fabricated by Spray Coating, for Large‐Area Perovskite Solar Cells

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Properties of perovskite ferroelectrics deposited on F doped SnO 2 electrodes and the prospect of their integration into perovskite solar cells

Cited by 13 publications

References 56 publications

First-Principles Exploration into the Physical and Chemical Properties of Certain Newly Identified SnO2 Polymorphs

First-Principles Exploration into the Physical and Chemical Properties of Certain Newly Identified SnO2 Polymorphs

Rough FTO electrode interface effect upon ferroelectric switching dynamics in Ag/P(VDF‐HFP)/FTO capacitor structures

Reticulated Mesoporous TiO2 Scaffold, Fabricated by Spray Coating, for Large‐Area Perovskite Solar Cells

Contact Info

Product

Resources

About

First-Principles Exploration into the Physical and Chemical Properties of Certain Newly Identified SnO₂ Polymorphs

First-Principles Exploration into the Physical and Chemical Properties of Certain Newly Identified SnO₂ Polymorphs

Reticulated Mesoporous TiO₂ Scaffold, Fabricated by Spray Coating, for Large‐Area Perovskite Solar Cells