Synthesis and characterization of TiO2 nanowires with controlled porosity and microstructure using electrospinning method

Jong Sik Lee; Young In Lee; Hanbok Song; Dae Hwan Jang; Yong Ho Choa

doi:10.1016/j.cap.2010.11.115

Synthesis and characterization of TiO₂ nanowires with controlled porosity and microstructure using electrospinning method

Jong Sik Lee
, Young In Lee
, Hanbok Song
, Dae Hwan Jang
, Yong Ho Choa

Dept. of Materials Science & Engineering

Hanyang University

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

44 Scopus citations

Abstract

We have fabricated dye-sensitized solar cells consisting of TiO₂ thin film as an electrode material. The porous anatase TiO₂ nanowires were fabricated by a simple electrospinning process using a solution of dissolved poly(vinyl pyrrolidone) (PVP) and titanium (IV) isopropoxide (TTIP) in ethanol. The relationship of solution viscosity, diameter and beads of the PVP/TiO₂ composite nanowires was confirmed by FE-SEM. The TiO ₂ nanowires were obtained to removal PVP by calcination, and decided on calcination temperature by TG-DTA. The crystalline phases of calcined TiO₂ nanowires were characterized by XRD. The anatase to rutile transformation and grain growth occurred during calcination of TiO₂ nanowires confirmed by TEM. The surface area and porosity were calculated from isotherm data by the BET and BJH method. The TiO₂ nanowires had higher surface area than a commercial powder (P25).

Original language	English
Pages (from-to)	S210-S214
Journal	Current Applied Physics
Volume	11
Issue number	1 SUPPL.
DOIs	https://doi.org/10.1016/j.cap.2010.11.115
State	Published - Jan 2011

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Dye-sensitized solar cells
Electrospinning
Semiconducting metal oxide electrode
Titanium dioxide

Access to Document

10.1016/j.cap.2010.11.115

Cite this

@article{1c7908654b7544c8ba48852f9056e6f3,

title = "Synthesis and characterization of TiO2 nanowires with controlled porosity and microstructure using electrospinning method",

abstract = "We have fabricated dye-sensitized solar cells consisting of TiO2 thin film as an electrode material. The porous anatase TiO2 nanowires were fabricated by a simple electrospinning process using a solution of dissolved poly(vinyl pyrrolidone) (PVP) and titanium (IV) isopropoxide (TTIP) in ethanol. The relationship of solution viscosity, diameter and beads of the PVP/TiO2 composite nanowires was confirmed by FE-SEM. The TiO 2 nanowires were obtained to removal PVP by calcination, and decided on calcination temperature by TG-DTA. The crystalline phases of calcined TiO2 nanowires were characterized by XRD. The anatase to rutile transformation and grain growth occurred during calcination of TiO2 nanowires confirmed by TEM. The surface area and porosity were calculated from isotherm data by the BET and BJH method. The TiO2 nanowires had higher surface area than a commercial powder (P25).",

keywords = "Dye-sensitized solar cells, Electrospinning, Semiconducting metal oxide electrode, Titanium dioxide",

author = "Lee, \{Jong Sik\} and Lee, \{Young In\} and Hanbok Song and Jang, \{Dae Hwan\} and Choa, \{Yong Ho\}",

year = "2011",

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doi = "10.1016/j.cap.2010.11.115",

language = "English",

volume = "11",

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journal = "Current Applied Physics",

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TY - JOUR

T1 - Synthesis and characterization of TiO2 nanowires with controlled porosity and microstructure using electrospinning method

AU - Lee, Jong Sik

AU - Lee, Young In

AU - Song, Hanbok

AU - Jang, Dae Hwan

AU - Choa, Yong Ho

PY - 2011/1

Y1 - 2011/1

N2 - We have fabricated dye-sensitized solar cells consisting of TiO2 thin film as an electrode material. The porous anatase TiO2 nanowires were fabricated by a simple electrospinning process using a solution of dissolved poly(vinyl pyrrolidone) (PVP) and titanium (IV) isopropoxide (TTIP) in ethanol. The relationship of solution viscosity, diameter and beads of the PVP/TiO2 composite nanowires was confirmed by FE-SEM. The TiO 2 nanowires were obtained to removal PVP by calcination, and decided on calcination temperature by TG-DTA. The crystalline phases of calcined TiO2 nanowires were characterized by XRD. The anatase to rutile transformation and grain growth occurred during calcination of TiO2 nanowires confirmed by TEM. The surface area and porosity were calculated from isotherm data by the BET and BJH method. The TiO2 nanowires had higher surface area than a commercial powder (P25).

AB - We have fabricated dye-sensitized solar cells consisting of TiO2 thin film as an electrode material. The porous anatase TiO2 nanowires were fabricated by a simple electrospinning process using a solution of dissolved poly(vinyl pyrrolidone) (PVP) and titanium (IV) isopropoxide (TTIP) in ethanol. The relationship of solution viscosity, diameter and beads of the PVP/TiO2 composite nanowires was confirmed by FE-SEM. The TiO 2 nanowires were obtained to removal PVP by calcination, and decided on calcination temperature by TG-DTA. The crystalline phases of calcined TiO2 nanowires were characterized by XRD. The anatase to rutile transformation and grain growth occurred during calcination of TiO2 nanowires confirmed by TEM. The surface area and porosity were calculated from isotherm data by the BET and BJH method. The TiO2 nanowires had higher surface area than a commercial powder (P25).

KW - Dye-sensitized solar cells

KW - Electrospinning

KW - Semiconducting metal oxide electrode

KW - Titanium dioxide

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DO - 10.1016/j.cap.2010.11.115

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