Molecular Engineering of Ruthenium-based Photosensitizers with Superior Photovoltaic Performance in DSSC: Novel N-Alkyl 2-Phenylindole-based Ancillary Ligands

2022 ◽  
Author(s):  
Saba Ashraf ◽  
Rui Su ◽  
Javeed Akhtar ◽  
Ahmed Shuja ◽  
Humaira Masood Siddiqi ◽  
...  
Keyword(s):  
Photovoltaic Performance ◽  
Molecular Engineering ◽  
Ancillary Ligand ◽  
Ancillary Ligands

In this work, we report the design and successful synthesis of two new heteroleptic polypyridyl Ru(II) complexes (SD-5 and SD-6), by incorporating hetero-aromatic electron-donating N-alkyl-2-phenylindole moieties into the ancillary ligand....

Imine–carbene-based ruthenium complexes for dye-sensitized solar cells: the effect of isomeric mixture on the photovoltaic performance

2020 ◽  
Vol 44 (47) ◽  
pp. 20568-20573
Author(s):  
Yogesh S. Tingare ◽  
Chaochin Su ◽  
Ming-Tai Shen ◽  
Sheng-Han Tsai ◽  
Shih-Yu Ho ◽  
...  
Keyword(s):  
Solar Cells ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Ruthenium Complexes ◽  
Ancillary Ligand ◽  
Isomeric Mixture ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

New isomeric sensitizers containing an imine–carbene (IC)-based ancillary ligand, isomers IC101 and IC102, were designed for application in dye-sensitized solar cells (DSSCs).

Fine tuning through valence bond tautomerization of ancillary ligands in ruthenium(ii) arene complexes for better anticancer activity and enzyme inhibition properties

2016 ◽  
Vol 45 (48) ◽  
pp. 19277-19289 ◽  
Author(s):  
Poulami Mandal ◽  
Novina Malviya ◽  
M. Fátima C. Guedes da Silva ◽  
Sandeep Singh Dhankhar ◽  
C. M. Nagaraja ◽  
...  
Keyword(s):  
Anticancer Activity ◽  
Enzyme Inhibition ◽  
Antiproliferative Activity ◽  
Ruthenium Complex ◽  
Valence Bond ◽  
Fine Tuning ◽  
Ancillary Ligand ◽  
Arene Complexes ◽  
Ancillary Ligands

Novel valence tautomerized ancillary ligand induce antiproliferative activity in ruthenium complex.

scholarly journals Theoretical investigation on the effect of ancillary ligand modification for highly efficient phosphorescent platinum(ii) complex design

RSC Advances ◽  
2017 ◽  
Vol 7 (28) ◽  
pp. 17368-17376 ◽  
Author(s):  
Hong-Wei Fan ◽  
Fu-Quan Bai ◽  
Zhi-Xiang Zhang ◽  
Yu Wang ◽  
Ze-Xing Qu ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
Theoretical Investigation ◽  
Organic Light Emitting Diodes ◽  
Luminescent Materials ◽  
Ancillary Ligand ◽  
Ancillary Ligands ◽  
Light Emitting ◽  
Ligand Modification ◽  
Organic Light ◽  
Complex Design

Reasonable modification of ancillary ligands for Pt(ii) complexes can effectively improve the quantum efficiency and strengthen the rigidity of luminescent materials in organic light-emitting diodes.

scholarly journals Improved Deep-Red Phosphorescence in Cyclometalated Iridium Complexes via Ancillary Ligand Modification

2019 ◽  
Author(s):  
Evanta Kabir ◽  
Steven Sittel ◽  
Boi-Lien Nguyen ◽  
Thomas Teets
Keyword(s):  
Rate Constant ◽  
Quantum Yields ◽  
Iridium Complexes ◽  
Ancillary Ligand ◽  
Ancillary Ligands ◽  
X Ray ◽  
X Ray Crystallography ◽  
Ligand Modification ◽  
Radiative Rate ◽  
Red Luminescence

In this work, we describe bis-cyclometalated iridium complexes with efficient deep-red luminescence. Two different cyclometalating (C^N) ligands‒1-phenylisoquinoline (piq) and 2-(2- pyridyl)benzothiophene (btp)‒are used with six strong π-donating ancillary ligands (L^X) to furnish a suite of 10 new complexes with the general formula Ir(C^N)2(L^X). Improvements in deep-red photoluminescence quantum yields were accomplished by the incorporation of sterically encumbering substituents onto the ancillary ligand, which can enhance the radiative rate constant (kr) and/or reduce the non-radiative rate constant (knr). Five of the complexes were characterized by X-ray crystallography, and all of them were investigated by in-depth spectroscopic and electrochemical measurements.<br>

scholarly journals Improved Deep-Red Phosphorescence in Cyclometalated Iridium Complexes via Ancillary Ligand Modification

2019 ◽  
Author(s):  
Evanta Kabir ◽  
Steven Sittel ◽  
Boi-Lien Nguyen ◽  
Thomas Teets
Keyword(s):  
Rate Constant ◽  
Quantum Yields ◽  
Iridium Complexes ◽  
Ancillary Ligand ◽  
Ancillary Ligands ◽  
X Ray ◽  
X Ray Crystallography ◽  
Ligand Modification ◽  
Radiative Rate ◽  
Red Luminescence

In this work, we describe bis-cyclometalated iridium complexes with efficient deep-red luminescence. Two different cyclometalating (C^N) ligands‒1-phenylisoquinoline (piq) and 2-(2- pyridyl)benzothiophene (btp)‒are used with six strong π-donating ancillary ligands (L^X) to furnish a suite of 10 new complexes with the general formula Ir(C^N)2(L^X). Improvements in deep-red photoluminescence quantum yields were accomplished by the incorporation of sterically encumbering substituents onto the ancillary ligand, which can enhance the radiative rate constant (kr) and/or reduce the non-radiative rate constant (knr). Five of the complexes were characterized by X-ray crystallography, and all of them were investigated by in-depth spectroscopic and electrochemical measurements.<br>

Key role of ancillary ligands in imparting blue shift in electroluminescence wavelength in ruthenium polypyridyl light-emitting diodes

2014 ◽  
Vol 38 (11) ◽  
pp. 5312-5323 ◽  
Author(s):  
Hashem Shahroosvand ◽  
Shiva Rezaei ◽  
Ezeddin Mohajerani ◽  
Malek Mahmoudi ◽  
Mohammad Ali Kamyabi ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Blue Shift ◽  
Ligand Substitution ◽  
Ancillary Ligand ◽  
Peak Wavelength ◽  
Ruthenium Polypyridyl ◽  
Ancillary Ligands ◽  
Light Emitting

Ancillary ligand substitution proves to be an effective way to produce the blue shift of electroluminescence peak wavelength.

Important role of ancillary ligand in the emission behaviours of blue-emitting heteroleptic Ir(iii) complexes

2017 ◽  
Vol 5 (18) ◽  
pp. 4480-4487 ◽  
Author(s):  
Yang-Jin Cho ◽  
So-Yoen Kim ◽  
Jin-Hyoung Kim ◽  
Douglas W. Crandell ◽  
Mu-Hyun Baik ◽  
...  
Keyword(s):  
Ancillary Ligand ◽  
Ancillary Ligands

A series of heteroleptic Ir(iii) complexes were prepared, and their emission behaviors depending on the ancillary ligands were systematically investigated.

Ancillary ligand-assisted robust deep-red emission in iridium(iii) complexes for solution-processable phosphorescent OLEDs

2019 ◽  
Vol 7 (14) ◽  
pp. 4143-4154 ◽  
Author(s):  
Hae Un Kim ◽  
Ho Jin Jang ◽  
Wanuk Choi ◽  
Minjun Kim ◽  
Sungjin Park ◽  
...  
Keyword(s):  
Excited State ◽  
Ancillary Ligand ◽  
Red Emission ◽  
Ancillary Ligands ◽  
Solution Processable

Two different kinds of ancillary ligands such as picolinate and thenoyltrifluoroacetylacetonate have profound effects on the excited state properties of deep red emissive iridium(iii) complexes

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