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Organic dyes containing 2-(1,1-dicyanomethylene)rhodanine as an efficient electron acceptor and anchoring unit for dye-sensitized solar cells
| Content Provider | Semantic Scholar |
|---|---|
| Author | Echeverry, Carlos Alberto Cardona Insuasty, Alberto Herranz, María Ángeles Ortiz, Alejandro Cotta, Renato M. Dhas, Vivek Echegoyen, Luis A. Insuasty, Braulio Martín, Nazario |
| Copyright Year | 2014 |
| Abstract | Abstract Here we report the synthesis and characterization of five new organic dyes based on 2-(1,1-dicyanomethylene)rhodanine, which simultaneously serves as an efficient electron-acceptor moiety and anchoring unit to the TiO 2 . Triphenylamine was used as the electron donor and a vinylthiophene unit was introduced to increase the pi-conjugation of the system and to widen the absorption region. The dye containing two 2-(1,1-dicyanomethylene)rhodanine units and no thiophene units showed the best photovoltaic performance with a short-circuit photocurrent density of 7.76 mA/cm², an open circuit photovoltage of 0.62 V, and a fill factor of 0.68, corresponding to an overall conversion efficiency of 3.78% under AM 1.5 irradiation (100 mW/cm²). |
| Starting Page | 9 |
| Ending Page | 14 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.dyepig.2014.03.010 |
| Alternate Webpage(s) | http://science.utep.edu/nsf-prem/images/files/PREM_Publications/Publication_-_Echegoyen_13.pdf |
| Alternate Webpage(s) | https://doi.org/10.1016/j.dyepig.2014.03.010 |
| Volume Number | 107 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
