Improved conversion efficiency in dye-sensitized solar cells based on electrospun Al-doped ZnO nanofiber electrodes prepared by seed layer treatment

Sining Yun; Sangwoo Lim

doi:10.1016/j.jssc.2010.11.024

Improved conversion efficiency in dye-sensitized solar cells based on electrospun Al-doped ZnO nanofiber electrodes prepared by seed layer treatment

Sining Yun, Sangwoo Lim

Department of Chemical and Biomolecular Engineering

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

77 Citations (Scopus)

Abstract

The application of electrospun nanofibers in electronic devices is limited due to their poor adhesion to conductive substrates. To improve this, a seed layer (SD) is introduced on the FTO substrate before the deposition of the electrospun composite nanofibers. This facilitates the release of interfacial tensile stress during calcination and enhances the interfacial adhesion of the AZO nanofiber films with the FTO substrate. Dye-sensitized solar cells (DSSC) based on these AZO nanofiber photoelectrodes have been fabricated and investigated. An energy conversion efficiency (η) of 0.540.55% has been obtained under irradiation of AM 1.5 simulated sunlight (100 mW/cm²), indicating a massive improvement of η in the AZO nanofiber film DSSCs after SD-treatment of the FTO substrate as compared to those with no treatment. The SD-treatment has been demonstrated to be a simple and facile method to solve the problem of poor adhesion between electrospun nanofibers and the conductive substrate.

Original language	English
Pages (from-to)	273-279
Number of pages	7
Journal	Journal of Solid State Chemistry
Volume	184
Issue number	2
DOIs	https://doi.org/10.1016/j.jssc.2010.11.024
Publication status	Published - 2011 Feb

Bibliographical note

Funding Information:
The authors acknowledge the financial support of the Foundation of the Education Ministry of Shaanxi Province under Grant No. 2010JK655. This work was also supported by the Project of Science and Technology for Returned Overseas Research Fellow through Shaanxi Administration of Foreign Expert Affairs . The Project-sponsored by SRF for ROCS, SEM. The authors are grateful to Jing Shi for the contribution to TEM measurement.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/j.jssc.2010.11.024

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title = "Improved conversion efficiency in dye-sensitized solar cells based on electrospun Al-doped ZnO nanofiber electrodes prepared by seed layer treatment",

abstract = "The application of electrospun nanofibers in electronic devices is limited due to their poor adhesion to conductive substrates. To improve this, a seed layer (SD) is introduced on the FTO substrate before the deposition of the electrospun composite nanofibers. This facilitates the release of interfacial tensile stress during calcination and enhances the interfacial adhesion of the AZO nanofiber films with the FTO substrate. Dye-sensitized solar cells (DSSC) based on these AZO nanofiber photoelectrodes have been fabricated and investigated. An energy conversion efficiency (η) of 0.540.55% has been obtained under irradiation of AM 1.5 simulated sunlight (100 mW/cm2), indicating a massive improvement of η in the AZO nanofiber film DSSCs after SD-treatment of the FTO substrate as compared to those with no treatment. The SD-treatment has been demonstrated to be a simple and facile method to solve the problem of poor adhesion between electrospun nanofibers and the conductive substrate.",

author = "Sining Yun and Sangwoo Lim",

note = "Funding Information: The authors acknowledge the financial support of the Foundation of the Education Ministry of Shaanxi Province under Grant No. 2010JK655. This work was also supported by the Project of Science and Technology for Returned Overseas Research Fellow through Shaanxi Administration of Foreign Expert Affairs . The Project-sponsored by SRF for ROCS, SEM. The authors are grateful to Jing Shi for the contribution to TEM measurement.",

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doi = "10.1016/j.jssc.2010.11.024",

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PY - 2011/2

Y1 - 2011/2

N2 - The application of electrospun nanofibers in electronic devices is limited due to their poor adhesion to conductive substrates. To improve this, a seed layer (SD) is introduced on the FTO substrate before the deposition of the electrospun composite nanofibers. This facilitates the release of interfacial tensile stress during calcination and enhances the interfacial adhesion of the AZO nanofiber films with the FTO substrate. Dye-sensitized solar cells (DSSC) based on these AZO nanofiber photoelectrodes have been fabricated and investigated. An energy conversion efficiency (η) of 0.540.55% has been obtained under irradiation of AM 1.5 simulated sunlight (100 mW/cm2), indicating a massive improvement of η in the AZO nanofiber film DSSCs after SD-treatment of the FTO substrate as compared to those with no treatment. The SD-treatment has been demonstrated to be a simple and facile method to solve the problem of poor adhesion between electrospun nanofibers and the conductive substrate.

AB - The application of electrospun nanofibers in electronic devices is limited due to their poor adhesion to conductive substrates. To improve this, a seed layer (SD) is introduced on the FTO substrate before the deposition of the electrospun composite nanofibers. This facilitates the release of interfacial tensile stress during calcination and enhances the interfacial adhesion of the AZO nanofiber films with the FTO substrate. Dye-sensitized solar cells (DSSC) based on these AZO nanofiber photoelectrodes have been fabricated and investigated. An energy conversion efficiency (η) of 0.540.55% has been obtained under irradiation of AM 1.5 simulated sunlight (100 mW/cm2), indicating a massive improvement of η in the AZO nanofiber film DSSCs after SD-treatment of the FTO substrate as compared to those with no treatment. The SD-treatment has been demonstrated to be a simple and facile method to solve the problem of poor adhesion between electrospun nanofibers and the conductive substrate.

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Improved conversion efficiency in dye-sensitized solar cells based on electrospun Al-doped ZnO nanofiber electrodes prepared by seed layer treatment

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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