Influence of mono versus bis-electron-donor ancillary ligands in heteroleptic Ru(ii) bipyridyl complexes on electron injection from the first excited singlet and triplet states in dye-sensitized solar cells

2014 ◽  
Vol 2 (34) ◽  
pp. 14228-14235 ◽  
Author(s):  
Hammad Cheema ◽  
Ashraful Islam ◽  
Liyuan Han ◽  
Bhoj Gautam ◽  
Robert Younts ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Donor ◽  
Dye Sensitized Solar Cells ◽  
Triplet States ◽  
Excited Singlet ◽  
Ancillary Ligands ◽  
Dye Sensitized ◽  
Singlet And Triplet States ◽  
Sensitized Solar Cells ◽  
Bipyridyl Complex

A novel Ru(ii) bipyridyl complex was designed for DSCs.

A comparative study of the influence of N,N′-dialkyl vs. N,N′-diaryl-based electron donor ancillary ligands on photocurrent and photovoltage in dye-sensitized solar cells (DSSCs)

2017 ◽  
Vol 19 (31) ◽  
pp. 20847-20860 ◽  
Author(s):  
Saba Ashraf ◽  
Erol Yildirim ◽  
Javeed Akhtar ◽  
Humaira M. Siddiqi ◽  
Ahmed El-Shafei
Keyword(s):  
Solar Cells ◽  
Comparative Study ◽  
Electron Donor ◽  
Dye Sensitized Solar Cells ◽  
Ancillary Ligands ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

In this study, we report the synthesis of a novel heteroleptic Ru(ii)-sensitizer, denoted as SD-1; moreover, its photophysical, electrochemical, and photovoltaic performances were compared with those of N719 and K77-7.

Effect of electron-donor ancillary ligands on the heteroleptic ruthenium complexes: synthesis, characterization, and application in high-performance dye-sensitized solar cells

2016 ◽  
Vol 18 (16) ◽  
pp. 11213-11219 ◽  
Author(s):  
Wang-Chao Chen ◽  
Fan-Tai Kong ◽  
Xue-Peng Liu ◽  
Fu-Ling Guo ◽  
Li Zhou ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Donor ◽  
High Performance ◽  
Dye Sensitized Solar Cells ◽  
Ruthenium Complexes ◽  
Ancillary Ligands ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

The effect of different electron-donor ancillary ligands on ruthenium sensitizers and their performance in DSSCs has been investigated.

scholarly journals Novel BODIPY dyes with electron donor variety for dye-sensitized solar cells

RSC Advances ◽  
2017 ◽  
Vol 7 (54) ◽  
pp. 33975-33985 ◽  
Author(s):  
Junxu Liao ◽  
Hongbin Zhao ◽  
Yongjun Xu ◽  
Weinan Zhou ◽  
Fei Peng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Donor ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Organic Sensitizers

Four D–π–A organic sensitizers (CB1-4), with donor variety were synthesized. CB4, with the advantages of strong donor and suitable connect position presents the broad and intensive absorption, and the best photovoltaic performance with η of 4.28%.

Insight into Electron-Donating Ancillary Ligands in Ruthenium Terpyridyl Complexes Configuration on Performances of Dye-Sensitized Solar Cells

2017 ◽  
Vol 121 (16) ◽  
pp. 8752-8759 ◽  
Author(s):  
Wang-Chao Chen ◽  
Fan-Tai Kong ◽  
Rahim Ghadari ◽  
Zhao-Qian Li ◽  
Xue-Peng Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Ancillary Ligands ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Insight Into

Influence of Ancillary Ligands in Dye-Sensitized Solar Cells

2016 ◽  
Vol 116 (16) ◽  
pp. 9485-9564 ◽  
Author(s):  
Babak Pashaei ◽  
Hashem Shahroosvand ◽  
Michael Graetzel ◽  
Mohammad Khaja Nazeeruddin
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Ancillary Ligands ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

scholarly journals Theoretical Insight into the Spectral Characteristics of Fe(II)-Based Complexes for Dye-Sensitized Solar Cells—Part I: Polypyridyl Ancillary Ligands

2011 ◽  
Vol 2011 ◽  
pp. 1-11 ◽  
Author(s):  
Xiaoqing Lu ◽  
Shuxian Wei ◽  
Chi-Man Lawrence Wu ◽  
Ning Ding ◽  
Shaoren Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Optical Absorption ◽  
Absorption Spectra ◽  
Dye Sensitized Solar Cells ◽  
Optical Absorption Spectra ◽  
Ancillary Ligands ◽  
Dye Sensitized ◽  
Ligand Charge Transfer ◽  
Sensitized Solar Cells

The design of light-absorbent dyes with cheaper, safer, and more sustainable materials is one of the key issues for the future development of dye-sensitized solar cells (DSSCs). We report herein a theoretical investigation on a series of polypyridyl Fe(II)-based complexes of FeL2(SCN)2, [FeL3]2+, [FeL′(SCN)3]-, [FeL′2]2+, and FeL′′(SCN)2(L = 2,2′-bipyridyl-4,4′-dicarboxylic acid, L′ = 2,2′,2″-terpyridyl-4,4′,4″-tricarboxylic acid, L″= 4,4‴-dimethyl-2,2′ : 6′,2″ :6″,2‴-quaterpyridyl-4′,4″-biscarboxylic acid) by density functional theory (DFT) and time-dependent DFT (TD-DFT). Molecular geometries, electronic structures, and optical absorption spectra are predicted in both the gas phase and methyl cyanide (MeCN) solution. Our results show that polypyridyl Fe(II)-based complexes display multitransition characters of Fe → polypyridine metal-to-ligand charge transfer and ligand-to-ligand charge transfer in the range of 350–800 nm. Structural optimizations by choosing different polypyridyl ancillary ligands lead to alterations of the molecular orbital energies, oscillator strength, and spectral response range. Compared with Ru(II) sensitizers, Fe(II)-based complexes show similar characteristics and improving trend of optical absorption spectra along with the introduction of different polypyridyl ancillary ligands.

Ruthenium(ii) complexes incorporating carbazole–diazafluorene based bipolar ligands for dye sensitized solar cell applications

2017 ◽  
Vol 41 (13) ◽  
pp. 5605-5612 ◽  
Author(s):  
Radhakrishnan Sivakumar ◽  
Rodrigo Recabarren ◽  
Sekar Ramkumar ◽  
Arumugam Manivel ◽  
Jans Alzate-Morales ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized Solar Cell ◽  
Ancillary Ligands ◽  
Dye Sensitized ◽  
New Type ◽  
Sensitized Solar Cells

A new type of ruthenium sensitizers, S3 and S4, consisting of carbazole–diazafluorene based bipolar ancillary ligands have been synthesized and characterized for dye sensitized solar cells.

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