The core-shell-structured NaYF4:Er3+,Yb3+@NaYF4:Eu3+ nanocrystals as dual-mode and multifunctional luminescent mechanism for high-performance dye-sensitized solar cells

We demonstrated the construction and performance of dye-sensitized solar cells (DSCs) based on nanoparticles of TiO2coated with thin shells of MgO by simple solution growth technique. The XRD patterns confirm the presence of both TiO2and MgO in the core-shell structure. The effect of varied shell thickness on the photovoltaic performance of the core-shell structured electrode is also investigated. We found that MgO shells of all thicknesses perform as barriers that improve open-circuit voltage (Voc) of the DSCs only at the expense of a larger decrease in short-circuit current density (Jsc). The energy conversion efficiency was greatly dependent on the thickness of MgO on TiO2film, and the highest efficiency of 4.1% was achieved at the optimum MgO shell layer.

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Nitrogen doped TiO2–CuxO core–shell mesoporous spherical hybrids for high-performance dye-sensitized solar cells

Physical Chemistry Chemical Physics ◽

10.1039/c4cp03132f ◽

2015 ◽

Vol 17 (1) ◽

pp. 563-574 ◽

Cited By ~ 21

Author(s):

Enyan Guo ◽

Longwei Yin

Keyword(s):

Solar Cells ◽

High Performance ◽

Sol Gel ◽

Hydrothermal Process ◽

Dye Sensitized Solar Cells ◽

Core Shell ◽

Structure Directing Agent ◽

Nitrogen Doped ◽

Dye Sensitized ◽

Sensitized Solar Cells

We report on high-performance dye-sensitized solar cells (DSSCs) based on nitrogen doped anatase TiO2–CuxO core–shell mesoporous hybrids synthesized through a facile and controlled combined sol–gel and hydrothermal process in the presence of hexadecylamine as the structure-directing agent.

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In situ grown hierarchical NiCo2O4@MnMoO4 core–shell nanoarrays on carbon cloth as high-performance counter electrode for dye-sensitized solar cells

Solar Energy ◽

10.1016/j.solener.2021.09.052 ◽

2021 ◽

Vol 227 ◽

pp. 616-624

Author(s):

Xiaobo Chen ◽

Yang Zhang ◽

Jianghao Cai ◽

Jiangyue Zhu

Keyword(s):

Solar Cells ◽

High Performance ◽

Counter Electrode ◽

Dye Sensitized Solar Cells ◽

Core Shell ◽

Carbon Cloth ◽

Performance Counter ◽

Dye Sensitized ◽

Sensitized Solar Cells

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Tin-Doped Indium Oxide-Titania Core-Shell Nanostructures for Dye-Sensitized Solar Cells

Advances in Condensed Matter Physics ◽

10.1155/2014/903294 ◽

2014 ◽

Vol 2014 ◽

pp. 1-6 ◽

Cited By ~ 6

Author(s):

Luping Li ◽

Cheng Xu ◽

Yang Zhao ◽

Kirk J. Ziegler

Keyword(s):

Solar Cells ◽

Indium Oxide ◽

Dye Sensitized Solar Cells ◽

Core Shell ◽

Electron Recombination ◽

Dye Sensitized ◽

Annealing Temperatures ◽

The Core ◽

Shell Nanostructures ◽

Sensitized Solar Cells

Dye-sensitized solar cells (DSSCs) hold great promise in the pursuit of reliable and cheap renewable energy. In this work, tin-doped indium oxide (ITO)-TiO2core-shell nanostructures are used as the photoanode for DSSCs. High-density, vertically aligned ITO nanowires are grown via a thermal evaporation method and TiO2is coated on nanowire surfaces via TiCl4treatment. It is found that high TiO2annealing temperatures increase the crystallinity of TiO2shell and suppress electron recombination in the core-shell nanostructures. High annealing temperatures also decrease dye loading. The highest efficiency of 3.39% is achieved at a TiO2annealing temperature of 500°C. When HfO2blocking layers are inserted between the core and shell of the nanowire, device efficiency is further increased to 5.83%, which is attributed to further suppression of electron recombination from ITO to the electrolyte. Open-circuit voltage decay (OCVD) measurements show that the electron lifetime increases by more than an order of magnitude upon HfO2insertion. ITO-TiO2core-shell nanostructures with HfO2blocking layers are promising photoanodes for DSSCs.

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