Ag@SiO2 Core-shell Nanoparticles Embedded in a TiO2 Mesoporous Layer Substantially Improve the Performance of Perovskite Solar Cells

Bao, Wan-Su; Zhu, Xiangyu; Li, Shuhan; Chen, Mengwei; Lu, Haifei; Yang, Yingping

doi:10.3390/nano8090701

Cited by 38 publications

(24 citation statements)

References 74 publications

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“…Recently, Wang et al successfully synthesized Ag@SiO 2 NPs with a modified Stöber method and developed PSCs with different contents of Ag@SiO2 NPs. The results revealed that by using an optimal content of NPs, a 19.46% improvement of the power conversion efficiency was obtained [16]. In addition, the successful integration of plasmonic gold nanostars into mesoporous TiO 2 photoelectrodes for PSCs has been reported.…”

Section: Introductionmentioning

confidence: 93%

The Influence of Embedded Plasmonic Nanostructures on the Optical Absorption of Perovskite Solar Cells

2019

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The interaction of light with plasmonic nanostructures can induce electric field intensity either around or at the surface of the nanostructures. The enhanced intensity of the electric field can increase the probability of light absorption in the active layer of solar cells. The absorption edge of perovskite solar cells (PSCs), which is almost 800 nm, can be raised to higher wavelengths with the help of plasmonic nanostructures due to their perfect photovoltaic characteristics. We placed plasmonic nanoparticles (NPs) with different radii (20–60 nm) within the bulk of the perovskite solar cell and found that the Au nanoparticles with a radius of 60 nm increased the absorption of the cell by 20% compared to the bare one without Au nanoparticles. By increasing the radius of the nanoparticles, the total absorption of the cell will increase because of the scattering enhancement. The results reveal that the best case is the PSC with the NP radius of 60 nm.

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Section: Introductionmentioning

confidence: 93%

The Influence of Embedded Plasmonic Nanostructures on the Optical Absorption of Perovskite Solar Cells

2019

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“…Typically, the thickness of this layer is about 10 μm, and the size of the nanoparticles is between 10 and 30 nm in diameter. The porosity is 50 to 60% [ 9 ]. This mesoporous layer is deposited on a conductive and transparent oxide called TCO (transparent conducting oxide), which in turn is on a glass or plastic substrate.…”

Section: Introductionmentioning

confidence: 99%

Biomimetic ZnO for Dye-Sensitized Solar Cells

Orozco-Messana

2020

Nanomaterials

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A research study on the application of biomimetic ZnO (from eggshell membranes) as photoanodes in dye-sensitized solar cells (DSSCs) is presented. Biomimetic ZnO powder was produced and characterized. Its surface area, crystallinity, and morphology were analyzed and compared to commercial ZnO. Then, solar cells with and without dye were assembled using both the biomimetic and commercial oxides. On the dye-less cell, the oxide assumes the role of the photon absorber, while in the dye-sensitized cells, the oxide’s major function is the separation of the electron-hole pair and conduction of the electric charges formed. The characterization of the oxides showed that the biomimetic synthesis produced ZnO with a larger surface area, smaller crystallite size, and larger light absorption, possibly due to crystalline defects. SEM analysis on biomimetic ZnO revealed a tubular microstructure formed by nanocrystals, instead of the commercial powder showing spherical particles.

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“…These materials can be used in many fields, including catalysis [1][2][3][4][5][6][7], bio-nanotechnology [8][9][10][11], materials chemistry [12,13], optical devices [14][15][16][17][18], electronics [19][20][21][22] and magnetic devices [23][24][25][26][27]. Among the number of core-shell composite materials [28][29][30][31][32], coating desirable compounds onto a core to form luminescence materials have emerged as one of the research hot spots in recent years. Compared with unary substance, these core-shell composite materials often exhibit improved physical and chemical properties [33][34][35][36], such as good stability, multi-functionality, luminous intensity, fluorescence quantum efficiency, and fluorescence lifetime.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Luminescence Properties of Core-Shell-Shell Composites: SiO2@PMDA-Si-Tb@SiO2 and SiO2@PMDA-Si-Tb-phen@SiO2

Feng¹,

Li²,

Bao³

et al. 2019

Preprint

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Two novel core-shell composites SiO2@PMDA-Si-Tb, SiO2@PMDA-Si-Tb-phen with SiO2 as the core and terbium organic complex as the shell, were successfully synthesized. The terbium ion was coordinated with organic ligand forming terbium organic complex in the shell layer. The bi-functional organosilane ((HOOC)2C6H2(CONH(CH2)3Si(OCH2CH3)3)2 (abbreviated as PMDA-Si) was used as the first ligand and phen as the second ligand. Furthermore, the silica-modified SiO2@PMDA-Si-Tb@SiO2, SiO2@PMDA-Si-Tb-phen@SiO2 core-shell-shell composites were also synthesized by sol–gel chemical route. An amorphous silica shell was coated around the SiO2@PMDA-Si-Tb and SiO2@PMDA-Si-Tb-phen core-shell composites. The core-shell and core-shell-shell composites both exhibited excellent luminescence in solid state. The luminescence of core-shell-shell composites was stronger than that of core-shell composites. Meanwhile, an improved luminescence stability property for the core-shell-shell composites was found in the aqueous solution. The core-shell-shell composites exhibited bright luminescence, high stability, long lifetime, and good solubility, which may present potential applications in the field of bio-medical.

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Ag@SiO2 Core-shell Nanoparticles Embedded in a TiO2 Mesoporous Layer Substantially Improve the Performance of Perovskite Solar Cells

Cited by 38 publications

References 74 publications

The Influence of Embedded Plasmonic Nanostructures on the Optical Absorption of Perovskite Solar Cells

The Influence of Embedded Plasmonic Nanostructures on the Optical Absorption of Perovskite Solar Cells

Biomimetic ZnO for Dye-Sensitized Solar Cells

Synthesis and Luminescence Properties of Core-Shell-Shell Composites: SiO2@PMDA-Si-Tb@SiO2 and SiO2@PMDA-Si-Tb-phen@SiO2

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