https://scholars.lib.ntu.edu.tw/handle/123456789/370480
Title: | A novel 2,7-diaminofluorene-based organic dye for a dye-sensitized solar cell | Authors: | Lin, L.-Y. Lee, C.-P. Yeh, M.-H. Baheti, A. Vittal, R. Thomas, K.R.J. Ho, K.-C. KUO-CHUAN HO |
Keywords: | Coadsorbate; Dye-sensitized solar cell; JD2 dye; Laser-induced photo-voltage transients; Organic dye | Issue Date: | 2012 | Journal Volume: | 215 | Start page/Pages: | 122-129 | Source: | Journal of Power Sources | Abstract: | A novel 2,7-diaminofluorene-based organic dye (coded as JD2) with the diarylaminofluorene unit as the electron donor and the cyanoacrylic acid as the acceptor as well as anchoring group in a donor-π-donor-π-acceptor architecture is used in a dye-sensitized solar cell (DSSC). The TiO 2 film thickness and the dye soaking time are optimized, and a coadsorbate of bis-(3,3-dimethyl-butyl)-phosphinic acid (DINHOP) is added to the dye solution to reform the cell performance. Effects of the additives, N-methylbenzimidazole (NMBI), guanidinium thiocyanate (GuSCN) or 4-tert-butylpyridine (TBP) in the electrolyte on the photovoltaic performance of the DSSC are studied. Effects of change of DINHOP concentration in JD2 dye solution, change of ratio of LiI to 1,2-dimethyl-3-propylimidazolium iodide (DMPII), and change of concentration of I 2 in the electrolyte on the photovoltaic performance of the DSSC are studied. A light-to-electricity conversion efficiency (η) of 6.31% is achieved for the JD2 dye-based DSSC, which is one of the best efficiencies for a cell with an organic dye. Explanations are made with electrochemical impedance spectra (EIS), laser-induced photo-voltage transients, and incident photo-to-current conversion efficiency (IPCE) curves. © 2012 Elsevier B.V. All rights reserved. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84861565363&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/370480 |
DOI: | 10.1016/j.jpowsour.2012.04.084 | SDG/Keyword: | 4-tert-Butylpyridine; Anchoring groups; Cell performance; Coadsorbate; Dye solutions; Dye-Sensitized solar cell; Dye-sensitized solar cells; Electrochemical impedance spectra; Electron donors; Guanidinium; Incident photo-to-current conversion efficiencies; Laser induced; Organic dye; Phosphinic acid; Photo-voltage; Photovoltaic performance; Soaking time; TiO; Conversion efficiency; Dies; Dyes; Electrolytes; Organic lasers; Photoelectrochemical cells; Photovoltaic effects; Power quality; Titanium dioxide; Transients; Solar cells |
Appears in Collections: | 化學工程學系 |
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