scholarly journals Geometrical Isomerism of RuIIDye-Sensitized Solar Cell Sensitizers and Effects on Photophysical Properties and Device Performances

ChemPhysChem ◽  
2014 ◽  
Vol 15 (6) ◽  
pp. 1207-1215 ◽  
Author(s):  
Fa-Chun Hu ◽  
Sheng-Wei Wang ◽  
Yun Chi ◽  
Neil Robertson ◽  
Tracy Hewat ◽  
...  
2015 ◽  
Vol 6 (12) ◽  
pp. 2312-2318 ◽  
Author(s):  
Zeyun Xiao ◽  
Kuan Sun ◽  
Jegadesan Subbiah ◽  
Tianshi Qin ◽  
Shirong Lu ◽  
...  

The effect of molecular weight of a conjugated polymer on its photophysical properties and solar cell device performance was investigated.


2015 ◽  
Vol 17 (3) ◽  
pp. 2094-2103 ◽  
Author(s):  
R. F. Jin ◽  
Y. F. Chang

Theoretical investigations show that star-shaped molecules are expected to be promising candidates for charge transfer and donor materials for OSCs.


2012 ◽  
Vol 53 (9) ◽  
pp. 1139-1143 ◽  
Author(s):  
Perumal Rajakumar ◽  
Ayyavu Thirunarayanan ◽  
Sebastian Raja ◽  
Shanmugam Ganesan ◽  
Pichai Maruthamuthu

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Thomas Geiger ◽  
Iuliia Schoger ◽  
Daniel Rentsch ◽  
Anna Christina Véron ◽  
Frédéric Oswald ◽  
...  

Seven unsymmetrical heptamethine dyes with carboxylic acid functionality were synthesized and characterized. These near-infrared dyes exhibit outstanding photophysical properties depending on their heterocyclic moieties and molecular structure. As proof of principle, the dyes were used as photosensitizers in dye-sensitized solar cells. Using the most promising dye, an overall conversion efficiency of 1.22% and an almost colorless solar cell were achieved.


RSC Advances ◽  
2016 ◽  
Vol 6 (17) ◽  
pp. 13964-13970 ◽  
Author(s):  
Takeshi Mori ◽  
Hitoshi Saomoto ◽  
Koji Machitani ◽  
Kaname Inoue ◽  
Yasunori Aoki ◽  
...  

We report the effect of the non-conjugated 5-position substituent of pyrazoline-based photosensitizers on the photophysical characteristics and performance of dye-sensitized solar cells (DSSCs).


2020 ◽  
Vol 32 (11) ◽  
pp. 2829-2838
Author(s):  
Shashikant Walki ◽  
Hemantkumar M. Savanur ◽  
M.K. Ravindra ◽  
Soniya Naik ◽  
G.H. Malimath ◽  
...  

In present study, a new organic dye 2-(4-chlorophenyl)-1-(4-methoxyphenyl)-4,5-diphenyl-1Himidazole (CMI) containing phenyl donor with imidazole ring as π-linker and chlorophenyl group as acceptor have been synthesized. The photophysical properties like solvato-chromism, optical band gap and fluorescence lifetime are estimated using experimental as well as quantum chemical computational techniques. Further, photosensitization of TiO2 nanoparticles from CMI dye has been investigated using absorption, steady-state and time resolved fluorescence methods. The increase in absorbance and a decrease in fluorescence spectra with different concentrations of TiO2 nanoparticles confirmed the possibility of interactions between dye and TiO2 nanoparticles. Rehm-Weller relation suggests that a decrease in fluorescence of CMI dye was due to photo-induced electron transfer process and the Stern-Volmer studies suggest that the fluorescence quenching mechanism was due to combined dynamic and static quenching process. Further, dye-sensitized solar cell using this newly synthesized CMI dye has been fabricated and characterized for their photovoltaic performance under illumination. Photovoltaic energy conversion efficiency and fill factor of the CMI dye were found to be 1.76% and 0.56, respectively.


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