Enhanced performance of planar perovskite solar cells using dip-coated TiO2 as electron transporting layer

Haimeur, A. El; Makha, Mohamed; Bakkali, Hicham; González-Leal, J.M.; Blanco, E.; Domí­nguez, Manuel; Voitenko, Zoia

doi:10.1016/j.solener.2019.11.094

Cited by 26 publications

(12 citation statements)

References 67 publications

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“…Regarding other aspects, when the light is irradiated, the reactions below are generated with the TiO 2 catalyst [54][55][56][57][58][59]. First, hole h + and an electron are created from TiO 2 as shown in Equation ( 29) [60].…”

Section: Case Of Photovoltaic Mechanism After Electrolytic Polymerizamentioning

confidence: 99%

Clarification of Catalytic Effect on Large Stretchable and Compressible Rubber Dye-Sensitized Solar Cells

et al. 2020

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Rubber involving magnetic compound fluid (MCF) and TiO2 is effective in dye-sensitized solar cells (DSSCs) to create large efficacy. Wearable and portable solar cells made of MCF rubber are the most desirable as soft materials in robots or flexible devices, and they are further desirable because they have self-generated power and power supply with sensing. Therefore, we investigated the effect of TiO2 catalysts on the photovoltaic effect of MCF rubber DSSCs under large tension and compression. The characteristics of the built-in electricity and photoelectricity were clarified experimentally. The experimental results were explained by a chemical–photovoltaic mechanism involving the behavior of dye, electrolytes, water, and rubber molecules, as well as a catalytic effect of the metal component of the MCF on Ni, Fe3O4, and TiO2. Once we are able to produce solar cells that have large tension and compression, the present experimental results and the model of the chemical–photovoltaic mechanism will be of great interest.

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Section: Case Of Photovoltaic Mechanism After Electrolytic Polymerizamentioning

confidence: 99%

Clarification of Catalytic Effect on Large Stretchable and Compressible Rubber Dye-Sensitized Solar Cells

et al. 2020

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“…As an emerging third-generation photovoltaic device, perovskite solar cells (PSCs) have attracted tremendous attention due to their remarkable photovoltaic performance, low cost, ease of fabrication and excellent flexibility. [1][2][3][4] The record power conversion efficiency (PCE) of PSCs has been pushed up to 25.5%. 5 The sharp increase of the device efficiency can be attributed to the excellent inherent properties of perovskite materials, including bipolar charge transport, tunable band gap, high absorption coefficient (∼10 4 cm −1 ), long carrier diffusion length, small exciton binding energy (2-55 meV), etc.…”

Section: Introductionmentioning

confidence: 99%

“…[15][16][17] At present, a number of n-type metal oxide semiconductors have been explored as ETL candidates, such as TiO 2 , ZnO, SnO 2 , etc. 1,2,[18][19][20][21] Of these ETLs, the conventional TiO 2 has been extensively used for PSCs, delivering impressive device efficiencies; however, the processing of TiO 2 ETLs often involves high-temperature sintering processes. 22,23 ZnO is a promising ETL material which enables low-temperature processing, coupled with other excellent photoelectric properties, including good optical transparency, high electron mobility, and favorable band structure matching with perovskite materials.…”

Section: Introductionmentioning

confidence: 99%

Magnetron sputtered ZnO electron transporting layers for high performance perovskite solar cells

et al. 2021

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“…Titanium dioxide, also known as titania, belongs to the class of transitions metal oxides [26]. TiO 2 has attracted a wide range of interests in the research community owing to its proven ability for many applications in the medical field [27,28], environmental protection [29][30][31], renewable energy [32], etc. TiO 2 is widely employed in solar energy devices, typically used as electron transporting material in nanostructured TiO 2 perovskite-sensitized solar cells and semiconductor in dye sensitized solar cell architecture [18,19,33,34].…”

Section: Introductionmentioning

confidence: 99%

Density Functional Theory Study of Optical and Electronic Properties of (TiO2)n=5,8,68 Clusters for Application in Solar Cells

2021

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A range of solution-processed organic and hybrid organic−inorganic solar cells, such as dye-sensitized and bulk heterojunction organic solar cells have been intensely developed recently. TiO2 is widely employed as electron transporting material in nanostructured TiO2 perovskite-sensitized solar cells and semiconductor in dye-sensitized solar cells. Understanding the optical and electronic mechanisms that govern charge separation, transport and recombination in these devices will enhance their current conversion efficiencies under illumination to sunlight. In this work, density functional theory with Perdew-Burke Ernzerhof (PBE) functional approach was used to explore the optical and electronic properties of three modeled TiO2 brookite clusters, (TiO2)n=5,8,68. The simulated optical absorption spectra for (TiO2)5 and (TiO2)8 clusters show excitation around 200–400 nm, with (TiO2)8 cluster showing higher absorbance than the corresponding (TiO2)5 cluster. The density of states and the projected density of states of the clusters were computed using Grid-base Projector Augmented Wave (GPAW) and PBE exchange correlation functional in a bid to further understand their electronic structure. The density of states spectra reveal surface valence and conduction bands separated by a band gap of 1.10, 2.31, and 1.37 eV for (TiO2)5, (TiO2)8, and (TiO2)68 clusters, respectively. Adsorption of croconate dyes onto the cluster shifted the absorption peaks to higher wavelengths.

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Enhanced performance of planar perovskite solar cells using dip-coated TiO2 as electron transporting layer

Cited by 26 publications

References 67 publications

Clarification of Catalytic Effect on Large Stretchable and Compressible Rubber Dye-Sensitized Solar Cells

Clarification of Catalytic Effect on Large Stretchable and Compressible Rubber Dye-Sensitized Solar Cells

Magnetron sputtered ZnO electron transporting layers for high performance perovskite solar cells

Density Functional Theory Study of Optical and Electronic Properties of (TiO2)n=5,8,68 Clusters for Application in Solar Cells

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