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Highly durable and flexible dye-sensitized solar cells fabricated on plastic substrates: PVDF-nanofiber-reinforced TiO2 photoelectrodes

Title
Highly durable and flexible dye-sensitized solar cells fabricated on plastic substrates: PVDF-nanofiber-reinforced TiO2 photoelectrodes
Authors
Li Y.Lee D.-K.Kim J.Y.Kim B.Park N.-G.Kim K.Shin J.-H.Choi I.-S.Ko M.J.
Ewha Authors
김경곤
SCOPUS Author ID
김경곤scopus
Issue Date
2012
Journal Title
Energy and Environmental Science
ISSN
1754-5692JCR Link
Citation
vol. 5, no. 10, pp. 8950 - 8957
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
In this study, we developed a novel nanostructured polymer nanofiber/TiO2 nanoparticle composite photoelectrode with high bendability by a spray-assisted electrospinning method. The composite film is used as the photoelectrode in plastic dye-sensitized solar cells (DSCs). The polymer/TiO2 composite photoelectrode has a structure similar to that of a fiber-reinforced composite; the matrix of the composite photoelectrode contains TiO2 nanoparticles, and PVDF nanofibers are embedded in this matrix. Compared to conventional DSCs, composite-based DSCs show outstanding bending stability because the polymer nanofibers prevent delamination of the electrode by relieving the external stress and effectively retarding crack generation and propagation. Moreover, the efficiency of the cell containing composite electrodes is comparable to that of a cell containing only TiO 2, suggesting that the proposed PVDF-nanofiber-reinforced photoelectrode is a promising candidate for a bendable photoelectrode in high-efficiency flexible plastic DSCs. © 2012 The Royal Society of Chemistry.
DOI
10.1039/c2ee21674d
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자연과학대학 > 화학·나노과학전공 > Journal papers
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