Characteristics of SnO2 nanofiber/TiO2 nanoparticle composite for dye-sensitized solar cells

Jiawei Gong, Hui Qiao, Sudhan Sigdel, Hytham Elbohy, Nirmal Adhikari, Zhengping Zhou, K. Sumathy, Qufu Wei, Qiquan Qiao

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25 Scopus citations

Abstract

SnO2 nanofibers and their composites based photoanodes were fabricated and investigated in the application of dye-sensitized solar cells. The photoanode made of SnO2/TiO2 composites yielded an over 2-fold improvement in overall conversion efficiency. The microstructure of SnO2 nanofibers was characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). A compact morphology of composites was observed using scanning electron microscopy (SEM). A long charge diffusion length (62.42 μm) in the composites was derived from time constant in transient photovoltage and photocurrent analysis. These experimental results demonstrate that one-dimensional nanostructured SnO2/TiO2 composites have a great potential for application in solar cells.

Original languageEnglish (US)
Article number067134
JournalAIP Advances
Volume5
Issue number6
DOIs
StatePublished - Jun 1 2015

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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