Dye-sensitized solar cells based on multichromophoric supramolecular light-harvesting materials

2014 ◽  
Vol 50 (40) ◽  
pp. 5358-5360 ◽  
Author(s):  
Dillip K. Panda ◽  
Flynt S. Goodson ◽  
Shuvasree Ray ◽  
Sourav Saha

Dye-sensitized solar cells comprised of supramolecular light-harvesting zinc-phthalocyanine⋯peryleneimide dyads on TiO2 films generate photoelectricity throughout the 300–650 nm region with the power conversion efficiency reaching up to 2.3% and the incident-photon-to-current-efficiency up to 40% under one-sun conditions.

2014 ◽  
Vol 2 (14) ◽  
pp. 4945-4953 ◽  
Author(s):  
Kun Cao ◽  
Jianfeng Lu ◽  
Jin Cui ◽  
Yan Shen ◽  
Wei Chen ◽  
...  

Ruthenium complexes featuring triphenylamine donor antennas boost dye-sensitized solar cell devices' power conversion efficiency close to 11%.


2021 ◽  
Vol 11 (3) ◽  
pp. 674-678
Author(s):  
Shibing Zou ◽  
Lingting Song ◽  
Junhong Duan ◽  
Le Huang ◽  
Weiqing Liu ◽  
...  

2015 ◽  
Vol 19 (01-03) ◽  
pp. 175-191 ◽  
Author(s):  
Ganesh D. Sharma ◽  
Galateia E. Zervaki ◽  
Kalliopi Ladomenou ◽  
Emmanuel N. Koukaras ◽  
Panagiotis P. Angaridis ◽  
...  

Two porphyrin dyads with the donor-π-acceptor molecular architecture, namely ( ZnP )-[triazine-gly]-( H 2 PCOOH ) and ( ZnP )-[triazine-Npip]-( H 2 PCOOH ), which consist of a zinc-metalated porphyrin unit and a free-base porphyrin unit covalently linked at their peripheries to a central triazine group, substituted either by a glycine in the former or a N-piperidine group in the latter, have been synthesized via consecutive amination substitution reactions of cyanuric chloride. The UV-vis absorption spectra and cyclic-voltammetry measurements of the two dyads, as well as theoretical calculations based on Density Functional Theory, suggest that they have suitable frontier orbital energy levels for use as sensitizers in dye-sensitized solar cells. Dye-sensitized solar cells based on ( ZnP )-[triazine-gly]-( H 2 PCOOH ) and ( ZnP )-[triazine-Npip]-( H 2 PCOOH ) have been fabricated, and they were found to exhibit power conversion efficiency values of 5.44 and 4.15%, respectively. Photovoltaic measurements (J–V curves) and incident photon to current conversion efficiency spectra of the two solar cells suggest that the higher power conversion efficiency value of the former solar cell is a result of its enhanced short circuit current, open circuit voltage, and fill factor values, as well as higher dye loading. This is ascribed to the existence of two carboxylic acid anchoring groups in ( ZnP )-[triazine-gly]-( H 2 PCOOH ), compared to one carboxylic acid group in ( ZnP )-[triazine-Npip]-( H 2 PCOOH ), which leads to a more effective binding onto the TiO 2 photoanode. Electrochemical impedance spectra show evidence that the ( ZnP )-[triazine-gly]-( H 2 PCOOH ) based solar cell exhibits a longer electron lifetime and more effective suppression of charge recombination reactions between the injected electrons and electrolyte.


Solar Energy ◽  
2018 ◽  
Vol 176 ◽  
pp. 320-324 ◽  
Author(s):  
Junjie Xie ◽  
Huihui Yuan ◽  
Wei Wang ◽  
Di Xu ◽  
Xinyu Chen ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (84) ◽  
pp. 81184-81190 ◽  
Author(s):  
Qingbiao Qi ◽  
Jing Zhang ◽  
Soumyajit Das ◽  
Wangdong Zeng ◽  
Jie Luo ◽  
...  

Three push–pull type, alkoxy-wrapped N-annulated perylene based sensitizers were synthesized and power conversion efficiency up to 8.38% was achieved.


2015 ◽  
Vol 127 (20) ◽  
pp. 6092-6096 ◽  
Author(s):  
Zhaoyang Yao ◽  
Min Zhang ◽  
Renzhi Li ◽  
Lin Yang ◽  
Yongna Qiao ◽  
...  

Solar Energy ◽  
2020 ◽  
Vol 196 ◽  
pp. 99-106 ◽  
Author(s):  
Junhong Duan ◽  
Shibing Zou ◽  
Chunmin Yang ◽  
Weiqing Liu ◽  
Huaming Wu ◽  
...  

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