TY - JOUR
T1 - A novel 2,7-diaminofluorene-based organic dye for a dye-sensitized solar cell
AU - Lin, Lu Yin
AU - Lee, Chuan Pei
AU - Yeh, Min Hsin
AU - Baheti, Abhishek
AU - Vittal, R.
AU - Thomas, K. R.Justin
AU - Ho, Kuo Chuan
N1 - Funding Information:
This work was supported in part by the National Research Council of Taiwan under grant numbers NSC 98-3114-E-008-002 and NSC 100-3113-E-008-003 . Some of the instruments used in this study were made available through the financial support of the Academia Sinica , Taipei, Taiwan, under grant AS-100-TP-A05 .
PY - 2012/10/1
Y1 - 2012/10/1
N2 - 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.
AB - 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.
KW - Coadsorbate
KW - Dye-sensitized solar cell
KW - JD2 dye
KW - Laser-induced photo-voltage transients
KW - Organic dye
UR - http://www.scopus.com/inward/record.url?scp=84861565363&partnerID=8YFLogxK
U2 - 10.1016/j.jpowsour.2012.04.084
DO - 10.1016/j.jpowsour.2012.04.084
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AN - SCOPUS:84861565363
SN - 0378-7753
VL - 215
SP - 122
EP - 129
JO - Journal of Power Sources
JF - Journal of Power Sources
ER -
