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

Research output: Contribution to journalArticlepeer-review

59 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 languageEnglish
Pages (from-to)273-279
Number of pages7
JournalJournal of Solid State Chemistry
Volume184
Issue number2
DOIs
Publication statusPublished - 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

Fingerprint Dive into the research topics of 'Improved conversion efficiency in dye-sensitized solar cells based on electrospun Al-doped ZnO nanofiber electrodes prepared by seed layer treatment'. Together they form a unique fingerprint.

Cite this