Study on Photoelectric Properties of Dye-Sensitized Solar Cells Based on Thixotropy Electrolyte

Abstract:

A series of experiments have been carried out to study on the efficiencies in solar energy materials and solar cells. Dye-sensitized solar cells (DSSCs) are good examples of where the quality of the nanomaterials and their interfacial properties are important to device performance. In this report, Nanometer TiO₂ sol for coating film was prepared by cooperating hydrothermal colloidal sol with organic polymer dispersing agent (PVA). Nanocrystalline TiO₂ porous films were prepared by using electro-hydrodynamic technique (EHD). The results show the films prepared by EHD technique have multilevel hierarchical structure, therefore, better optical scattering properties. Different constituent quasi-solid electrolytes with blood mimetic thixotropy were prepared by cooperating ionic liquid electrolyte with nanometer TiO₂ colloidal sol synthetized by sol-gel method. The resulting Quasi-Solid-State dye-sensitized solar cells consist of nanoporous TiO₂ Film and the dye N3, show conversion efficiencies up to 3.7 percent (8. 51 percent with a mask).

• Periodical: Applied Mechanics and Materials (Volume 618)
• Pages: 19-23
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.618.19
• Online since: August 2014
• Authors: Li Guo Jin*, Shuo Wang, Hong Jie Wang
• Keywords: DSSC, Nanoporous TiO₂ Film, Quasi-Solid-State Electrolyte, Thixotropy

References

[1] O'Regan, B. & Grätzel, M. A low-cost, high-efficiency solar-cell based on dye-sensitized colloidal TiO2 films, Nature353, 737-740 (1991).

DOI: 10.1038/353737a0

[2] Grätzel, M. Photoelectrochemical cells. Nature414, 338344 (2001).

[3] Yanagida, S. , Yu, Y. H. & Manseki, K. Iodine/iodide-free dye-sensitized solar cells. Acc. Chem. Res. 42, 1827–1838 (2009).

DOI: 10.1021/ar900069p

[4] Jin L，Wu Z，Wei T，et al． Dye-sensitized Solar Cell based on Blood Mimetic Thixotropy Sol-gel Electrolyte J. Chem Commun, 47 (2011), 997 -999.

DOI: 10.1039/c0cc04285d

[5] Karthinkeyan CS, Thelakkat M, Willert-porada M. Different Mesoporous Titania Films for Solid-state Dye Sensitised Solar Cells, J. Thin Solid Films, 511 (2006), 187-194.

DOI: 10.1016/j.tsf.2005.12.152

[6] Zukalova M, Zukal A, Kavan L, et al. Organized Mesoporous TiO2 Films Exhibiting Greatly Enhanced Performance in Dye-sensitized Solar Cells, J. Nano Lett, 5 (2005), 1789-1792.

DOI: 10.1021/nl051401l

[7] Kwak E, Lee W, Park N, et al. Compact Inverse-opal Electrode Using Non-aggregated TiO2 Nanoparticles for Dye-sensitized Solar Cells, J. Adv. Funct. Mater. 19 (2009), 1093-1099.

DOI: 10.1002/adfm.200801540

[8] Hara K, Sato T, Katoh R, et al. Novel Conjugated Organic Dyes for Efficient Dye-Sensitized Solar Cells, J. Adv. Funct. Mater, 15 (2005), 246-252.

DOI: 10.1002/adfm.200400272

[9] Kubo W, Murakoshi K, Kitamura T, et al. Quasi-solid-state Dye-Sensitized TiO2 Solar Cells: Effective Charge Transport in Mesoporous Space Filled with Gel Electrolytes Containing Iodide and Iodine. J. Phys. Chem. B, 105(2001), 12809-12815.

DOI: 10.1021/jp012026y

[10] P. M. Sommeling, B. C. O'Regan, R. R. Haswell, et al, Influence of a TiCl4 Post-Treatment on Nanocrystalline TiO2 Films in Dye-Sensitized Solar Cells, J. Phys. Chem. 110 (2006), 19191-19197.

DOI: 10.1021/jp061346k

[11] Ikada N, Teshima K, Miyasaka T. Conductive Polymer-carbon-Imidazolium Composite: a Simple Means for Constructing Solid-state dye-sensitized Solar Cells, J. Chem. Commun. , 16(2006), 1733-1735.

DOI: 10.1039/b516417f

[12] Zafer C, Karapire C, Sserdar Sariciftci N, et al. Characterization of N, N'-bis-2-(1-hydoxy-4-methylpentyl)-3, 4, 9, 10-Perylene Bis (dicarboximide) Sensitized Nanocrystalline TiO2 Solar Cells with Polythiophene Hole Conductors. , J. Sol. Energy Mater. Sol. Cells. , 88 (2005).

DOI: 10.1016/j.solmat.2004.09.009