Eu3+ doped down shifting TiO2 layer for efficient dye-sensitized solar cells

Vinod Kumar; Sanjay Kumar Swami; Anuj Kumar; O. M. Ntwaeaborwa; Viresh Dutta; H. C. Swart

doi:10.1016/j.jcis.2016.08.060

Eu³⁺ doped down shifting TiO₂ layer for efficient dye-sensitized solar cells

Vinod Kumar, Sanjay Kumar Swami, Anuj Kumar, O. M. Ntwaeaborwa, Viresh Dutta, H. C. Swart

Research output: Contribution to journal › Article › peer-review

47 Citations (Scopus)

Abstract

Europium doped TiO₂ (TiO₂:Eu³⁺) down-shifting (DS) nanophosphors (NPrs) were synthesized by the solution-combustion method with different concentrations of Eu³⁺. The X-ray diffraction results confirmed the formation of a polycrystalline tetragonal structure of the TiO₂. The emission of colour of the TiO₂:Eu³⁺ DS NPr was tuned by varying the doping concentration of Eu³⁺. The photoluminescence results confirmed that the TiO₂:Eu³⁺ DS NPrs converted the UV light into visible light by energy down-conversion process, i.e. down-shifting of high energy UV photons to low energy visible photons. These TiO₂:Eu³⁺ DS NPrs were used to enhance the efficiency of the Dye sensitized solar cell from 8.32% to 8.80%.

Original language	English
Pages (from-to)	24-32
Number of pages	9
Journal	Journal of Colloid and Interface Science
Volume	484
DOIs	https://doi.org/10.1016/j.jcis.2016.08.060
Publication status	Published - 15 Dec 2016
Externally published	Yes

Keywords

DSSC
Defects
Down-shifting
XPS

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biomaterials
Surfaces, Coatings and Films
Colloid and Surface Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.jcis.2016.08.060

Cite this

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title = "Eu3+ doped down shifting TiO2 layer for efficient dye-sensitized solar cells",

abstract = "Europium doped TiO2 (TiO2:Eu3+) down-shifting (DS) nanophosphors (NPrs) were synthesized by the solution-combustion method with different concentrations of Eu3+. The X-ray diffraction results confirmed the formation of a polycrystalline tetragonal structure of the TiO2. The emission of colour of the TiO2:Eu3+ DS NPr was tuned by varying the doping concentration of Eu3+. The photoluminescence results confirmed that the TiO2:Eu3+ DS NPrs converted the UV light into visible light by energy down-conversion process, i.e. down-shifting of high energy UV photons to low energy visible photons. These TiO2:Eu3+ DS NPrs were used to enhance the efficiency of the Dye sensitized solar cell from 8.32% to 8.80%.",

keywords = "DSSC, Defects, Down-shifting, XPS",

author = "Vinod Kumar and Swami, {Sanjay Kumar} and Anuj Kumar and Ntwaeaborwa, {O. M.} and Viresh Dutta and Swart, {H. C.}",

note = "Publisher Copyright: {\textcopyright} 2016",

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doi = "10.1016/j.jcis.2016.08.060",

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T1 - Eu3+ doped down shifting TiO2 layer for efficient dye-sensitized solar cells

AU - Kumar, Vinod

AU - Swami, Sanjay Kumar

AU - Kumar, Anuj

AU - Ntwaeaborwa, O. M.

AU - Dutta, Viresh

AU - Swart, H. C.

PY - 2016/12/15

Y1 - 2016/12/15

N2 - Europium doped TiO2 (TiO2:Eu3+) down-shifting (DS) nanophosphors (NPrs) were synthesized by the solution-combustion method with different concentrations of Eu3+. The X-ray diffraction results confirmed the formation of a polycrystalline tetragonal structure of the TiO2. The emission of colour of the TiO2:Eu3+ DS NPr was tuned by varying the doping concentration of Eu3+. The photoluminescence results confirmed that the TiO2:Eu3+ DS NPrs converted the UV light into visible light by energy down-conversion process, i.e. down-shifting of high energy UV photons to low energy visible photons. These TiO2:Eu3+ DS NPrs were used to enhance the efficiency of the Dye sensitized solar cell from 8.32% to 8.80%.

AB - Europium doped TiO2 (TiO2:Eu3+) down-shifting (DS) nanophosphors (NPrs) were synthesized by the solution-combustion method with different concentrations of Eu3+. The X-ray diffraction results confirmed the formation of a polycrystalline tetragonal structure of the TiO2. The emission of colour of the TiO2:Eu3+ DS NPr was tuned by varying the doping concentration of Eu3+. The photoluminescence results confirmed that the TiO2:Eu3+ DS NPrs converted the UV light into visible light by energy down-conversion process, i.e. down-shifting of high energy UV photons to low energy visible photons. These TiO2:Eu3+ DS NPrs were used to enhance the efficiency of the Dye sensitized solar cell from 8.32% to 8.80%.

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