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  4. Photovoltaic properties of dye-sensitized solar cells associated with amphiphilic structure of ruthenium complex dyes
 
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Photovoltaic properties of dye-sensitized solar cells associated with amphiphilic structure of ruthenium complex dyes

Journal
Journal of Colloid and Interface Science
Journal Volume
372
Journal Issue
1
Pages
73-79
Date Issued
2012
Author(s)
Liu, K.-Y.
Hsu, C.-L.
Ni, J.-S.
Ho, K.-C.
Lin, K.-F.
Liu, Ken-Yen
Hsu, Chiao-Ling
Ni, Jen-Shyang
Ho, Kuo-Chuan
Lin, King-Fu
KUO-CHUAN HO  
DOI
10.1016/j.jcis.2012.01.004
URI
http://www.scopus.com/inward/record.url?eid=2-s2.0-84857441213&partnerID=MN8TOARS
http://scholars.lib.ntu.edu.tw/handle/123456789/370446
Abstract
Photovoltaic properties of Ru(2,2'-bipyridine-4,4'-bicarboxylic acid)(4,4'-bis(11-dodecenyl)-2,2'-bipyridine)(NCS) 2 (denoted as Ru-C) related to its adsorption behavior onto the mesoporous titanium oxide (TiO 2) were investigated in association with its amphiphilic structure compared with those of Ru(4,4'-dicarboxy-2,2'-bipyridine) 2(NCS) 2 (commonly known as N3 dye). Both dyes tended to aggregate and form vesicles in their acetonitrile/tert-butanol solutions. As the vesicles were adsorbed to TiO 2, the dyes which did not participate in bonding to TiO 2 would re-dissolve into the solution and create the voids on the surface of TiO 2. The voids for N3 dyes would be filled in time, whereas a great deal of voids for Ru-C dye remained, presumably due to its aliphatic side chains retarding further adsorption. The dye sensitized solar cell (DSSC) using Ru-C dye has lower power conversion efficiency compared with N3 dye, which is partly due to the remaining voids that increase the charge recombination. Besides, the N3 dye that is capable of injecting the excited electrons from both ligands to TiO 2 also enhances the photocurrent. Therefore, although using amphiphilic dye for DSSC may have a merit of long term stability, its tendency of void formation on TiO 2 mesoporous layer needs to be concerned. © 2012 Elsevier Inc..
Subjects
Adsorption; Amphiphilic; DSSC; Photovoltaic; Ruthenium dye; TiO 2
SDGs

[SDGs]SDG7

Other Subjects
Amphiphilic; DSSC; Photovoltaic; Ruthenium dye; TiO; Adsorption; Conversion efficiency; Photovoltaic effects; Ruthenium; Ruthenium compounds; Titanium; Titanium dioxide; Solar cells; amphophile; bipyridine; dye; N3 dye; nitrogen; ruthenium complex; ruthenium dye; titanium; titanium dioxide; unclassified drug; adsorption; article; atomic force microscopy; desorption; dye sensitized solar cell; electric current; electric potential; electrode; electron; light scattering; priority journal; sensitization; synthesis
Type
journal article

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