Nanoparticle layers transformed from ordered TiO2 nanotube arrays and dye-sensitized solar cells

Yahya Alivov; Xuan Pan; Mahesh Pandikunta; Vladimir Kuryatkov; Sergey Nikishin; Mark Holtz; Zhaoyang Fan

Nanoparticle layers transformed from ordered TiO₂ nanotube arrays and dye-sensitized solar cells

Yahya Alivov, Xuan Pan, Mahesh Pandikunta, Vladimir Kuryatkov, Sergey Nikishin, Mark Holtz, Zhaoyang Fan

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Transformation of titanium dioxide (TiO₂) nanotubes (NTs) to truncated bipyramidal shape nanoparticles (NPs) with a large fraction of photo-catalytically active {001} facet surface was observed after thermal annealing TiO₂ ordered nanotube arrays in fluorine ambient. Size of the formed nanoparticles depended on fluorine concentration and can be controlled from 20 nm to 350 nm. The crystal and optical properties of nanoparticle layers are superior to those of nanotube arrays, which are also annealed but without geometrical transformation. Using nanoparticle layers formed by this method we have fabricated dye-sensitized solar cells (DSSCs) with different size NPs in the range 35-350 nm. The dependence of solar cell performance on NP size is discussed.

Original language	English
Title of host publication	Advanced Nanostructured Solar Cells
Pages	69-73
Number of pages	5
State	Published - 2010
Event	2009 MRS Fall Meeting - Boston, MA, United States Duration: Nov 30 2009 → Dec 4 2009

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	1211
ISSN (Print)	0272-9172

Conference

Conference	2009 MRS Fall Meeting
Country/Territory	United States
City	Boston, MA
Period	11/30/09 → 12/4/09

Cite this

@inproceedings{0c8e5fb881dd4be5b12b0edeeb126d74,

title = "Nanoparticle layers transformed from ordered TiO2 nanotube arrays and dye-sensitized solar cells",

abstract = "Transformation of titanium dioxide (TiO2) nanotubes (NTs) to truncated bipyramidal shape nanoparticles (NPs) with a large fraction of photo-catalytically active {001} facet surface was observed after thermal annealing TiO2 ordered nanotube arrays in fluorine ambient. Size of the formed nanoparticles depended on fluorine concentration and can be controlled from 20 nm to 350 nm. The crystal and optical properties of nanoparticle layers are superior to those of nanotube arrays, which are also annealed but without geometrical transformation. Using nanoparticle layers formed by this method we have fabricated dye-sensitized solar cells (DSSCs) with different size NPs in the range 35-350 nm. The dependence of solar cell performance on NP size is discussed.",

author = "Yahya Alivov and Xuan Pan and Mahesh Pandikunta and Vladimir Kuryatkov and Sergey Nikishin and Mark Holtz and Zhaoyang Fan",

year = "2010",

language = "English",

isbn = "9781617822032",

series = "Materials Research Society Symposium Proceedings",

pages = "69--73",

booktitle = "Advanced Nanostructured Solar Cells",

note = "2009 MRS Fall Meeting ; Conference date: 30-11-2009 Through 04-12-2009",

}

Nanoparticle layers transformed from ordered TiO₂ nanotube arrays and dye-sensitized solar cells. / Alivov, Yahya; Pan, Xuan; Pandikunta, Mahesh et al.
Advanced Nanostructured Solar Cells. 2010. p. 69-73 (Materials Research Society Symposium Proceedings; Vol. 1211).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Nanoparticle layers transformed from ordered TiO2 nanotube arrays and dye-sensitized solar cells

AU - Alivov, Yahya

AU - Pan, Xuan

AU - Pandikunta, Mahesh

AU - Kuryatkov, Vladimir

AU - Nikishin, Sergey

AU - Holtz, Mark

AU - Fan, Zhaoyang

PY - 2010

Y1 - 2010

N2 - Transformation of titanium dioxide (TiO2) nanotubes (NTs) to truncated bipyramidal shape nanoparticles (NPs) with a large fraction of photo-catalytically active {001} facet surface was observed after thermal annealing TiO2 ordered nanotube arrays in fluorine ambient. Size of the formed nanoparticles depended on fluorine concentration and can be controlled from 20 nm to 350 nm. The crystal and optical properties of nanoparticle layers are superior to those of nanotube arrays, which are also annealed but without geometrical transformation. Using nanoparticle layers formed by this method we have fabricated dye-sensitized solar cells (DSSCs) with different size NPs in the range 35-350 nm. The dependence of solar cell performance on NP size is discussed.

AB - Transformation of titanium dioxide (TiO2) nanotubes (NTs) to truncated bipyramidal shape nanoparticles (NPs) with a large fraction of photo-catalytically active {001} facet surface was observed after thermal annealing TiO2 ordered nanotube arrays in fluorine ambient. Size of the formed nanoparticles depended on fluorine concentration and can be controlled from 20 nm to 350 nm. The crystal and optical properties of nanoparticle layers are superior to those of nanotube arrays, which are also annealed but without geometrical transformation. Using nanoparticle layers formed by this method we have fabricated dye-sensitized solar cells (DSSCs) with different size NPs in the range 35-350 nm. The dependence of solar cell performance on NP size is discussed.

UR - http://www.scopus.com/inward/record.url?scp=79952064051&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:79952064051

SN - 9781617822032

T3 - Materials Research Society Symposium Proceedings

SP - 69

EP - 73

BT - Advanced Nanostructured Solar Cells

T2 - 2009 MRS Fall Meeting

Y2 - 30 November 2009 through 4 December 2009

ER -

Nanoparticle layers transformed from ordered TiO₂ nanotube arrays and dye-sensitized solar cells

Abstract

Publication series

Conference

Other files and links

Fingerprint

Cite this