High-surface-area, interconnected, nanofibrillar TiO2 structures as photoanodes in dye-sensitized solar cells

Dharani Sabba; Nripan Mathews; Julianto Chua; Stevin S. Pramana; Hemant K. Mulmudi; Qing Wang; Subodh G. Mhaisalkar

doi:10.1016/j.scriptamat.2012.11.027

High-surface-area, interconnected, nanofibrillar TiO₂ structures as photoanodes in dye-sensitized solar cells

Dharani Sabba, Nripan Mathews^*, Julianto Chua, Stevin S. Pramana, Hemant K. Mulmudi, Qing Wang, Subodh G. Mhaisalkar

^*Corresponding author for this work

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

18 Citations (Scopus)

Abstract

The utilization of high-surface-area, nanofibrillar, electrospun TiO ₂ thin films with intact fiber morphology as photoanodes in dye-sensitized solar cells has been demonstrated. Electrochemical impedance spectroscopy measurements indicated that these photoanodes exhibited good charge transport and collection. Devices fabricated from these interconnected nanofibers (3 μm thick) attained efficiencies of 4.2% (N719 dye). For comparison, nanoparticle photoanodes of similar thickness were also prepared. The fabrication steps of the cells which preserve the interconnected morphology of the photoanodes are simple and economical.

Original language	English
Pages (from-to)	487-490
Number of pages	4
Journal	Scripta Materialia
Volume	68
Issue number	7
DOIs	https://doi.org/10.1016/j.scriptamat.2012.11.027
Publication status	Published - Apr 2013
Externally published	Yes

ASJC Scopus Subject Areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

Keywords

Dye-sensitized solar cells
Electrospinning
Impedance spectroscopy
Nanofibrils

Access to Document

10.1016/j.scriptamat.2012.11.027

Cite this

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title = "High-surface-area, interconnected, nanofibrillar TiO2 structures as photoanodes in dye-sensitized solar cells",

abstract = "The utilization of high-surface-area, nanofibrillar, electrospun TiO 2 thin films with intact fiber morphology as photoanodes in dye-sensitized solar cells has been demonstrated. Electrochemical impedance spectroscopy measurements indicated that these photoanodes exhibited good charge transport and collection. Devices fabricated from these interconnected nanofibers (3 μm thick) attained efficiencies of 4.2\% (N719 dye). For comparison, nanoparticle photoanodes of similar thickness were also prepared. The fabrication steps of the cells which preserve the interconnected morphology of the photoanodes are simple and economical.",

keywords = "Dye-sensitized solar cells, Electrospinning, Impedance spectroscopy, Nanofibrils",

author = "Dharani Sabba and Nripan Mathews and Julianto Chua and Pramana, \{Stevin S.\} and Mulmudi, \{Hemant K.\} and Qing Wang and Mhaisalkar, \{Subodh G.\}",

year = "2013",

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language = "English",

volume = "68",

pages = "487--490",

journal = "Scripta Materialia",

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TY - JOUR

T1 - High-surface-area, interconnected, nanofibrillar TiO2 structures as photoanodes in dye-sensitized solar cells

AU - Sabba, Dharani

AU - Mathews, Nripan

AU - Chua, Julianto

AU - Pramana, Stevin S.

AU - Mulmudi, Hemant K.

AU - Wang, Qing

AU - Mhaisalkar, Subodh G.

PY - 2013/4

Y1 - 2013/4

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AB - The utilization of high-surface-area, nanofibrillar, electrospun TiO 2 thin films with intact fiber morphology as photoanodes in dye-sensitized solar cells has been demonstrated. Electrochemical impedance spectroscopy measurements indicated that these photoanodes exhibited good charge transport and collection. Devices fabricated from these interconnected nanofibers (3 μm thick) attained efficiencies of 4.2% (N719 dye). For comparison, nanoparticle photoanodes of similar thickness were also prepared. The fabrication steps of the cells which preserve the interconnected morphology of the photoanodes are simple and economical.

KW - Dye-sensitized solar cells

KW - Electrospinning

KW - Impedance spectroscopy

KW - Nanofibrils

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