A novel ruthenium sensitizer with –OMe substituted phenyl-terpyridine ligand for dye sensitized solar cells

Mongal, Binitendra Naath; Bhattacharya, Sayantani; Sengupta, Swaraj; Mandal, Tarun K.; Datta, Jayati; Naskar, Subhendu

doi:10.1016/j.solener.2016.04.035

Cited by 21 publications

(7 citation statements)

References 58 publications

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“…4′‐(3,4,5‐Trimethoxyphenyl)‐2,2′:6′.2′′‐terpyridine, 4′‐(Methoxyphenyl)‐2,2′:6′.2′′‐terpyridine, 4′‐(Methylphenyl)‐2,2′:6′.2′′‐terpyridine, Methyl 4‐([2, 2′: 6′, 2′′‐terpyridin]‐4′‐yl) benzoate, 4′‐(furan‐2‐yl)‐ 2, 2′: 6′, 2′′‐terpyridine and cis‐ [Ru(DMSO) 4 (Cl) 2 ] were synthesized according to the literature methods [9a,10–11,29] . For the synthesis of cis ‐[Ru(tpy) 4′‐Ph−COOMe (DMSO)(Cl) 2 ] and cis ‐[Ru(tpy) furyl (DMSO)(Cl) 2 ], a similar protocol reported for the synthesis of cis ‐[Ru(tpy)(DMSO)(Cl) 2 ] was followed [10] .…”

Section: Methodsmentioning

confidence: 99%

Ruthenium (II) Complexes Bearing Heteroleptic Terpyridine Ligands: Synthesis, Photophysics and Solar Energy Conversion

et al. 2021

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Heteroleptic ruthenium (II) complexes featuring donor functionalized phenyl‐terpyridine (ph‐tpy) and a monocarboxylic‐(ph‐tpy)/(tpy) are synthesized and characterized. Reactions of ruthenium (II) precursors at 80 °C favored heteroleptic complexes formation over the homoleptic side products. Visible light excitation of these complexes resulted in the metal‐to‐ligand charge transfer (MLCT) transitions. The inter‐planar torsional angle between the atoms of donor functionalized phenyl ring and the central pyridine (py) of the tpy core strongly influences visible light absorption and photovoltaic properties. The lower inter‐ring py‐ph torsion in the acceptor end of the MLCT structures and its increase in the oxidized doublets could prevent the back electron transfer. The ruthenium atom and the acceptor functionalized tpy host the triplet‐MLCT spin density. Ambient temperature excited‐state decay followed the energy gap law and occurred in the order of a few nanoseconds. Herein, we evaluate the photosensitizing ability of these complexes via a combined experimental and computational approach.

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Section: Methodsmentioning

confidence: 99%

Ruthenium (II) Complexes Bearing Heteroleptic Terpyridine Ligands: Synthesis, Photophysics and Solar Energy Conversion

et al. 2021

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“…There is an initial fall of current which is followed by more or less steady current throughout the polarization period. The decay (δ) coefficient is evaluated in terms of δ (%) using …”

Section: Results and Discussionmentioning

confidence: 99%

Iron Doped CdSe Films with Improved Photosensitivity and Stability for Use in a Liquid Junction Solar Cell

Jana

Hazra

Datta

2018

ACS Appl. Energy Mater.

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In the present investigation, transition metal Fe has been introduced in low levels in the CdSe matrix to formulate CdFeSe films for application in photoelectrochemical solar cells. Periodic voltammetry was employed to deposit the ternary films on FTO glass. Spectral characteristics, morphology, and composition of the matrices were determined by the respective physiochemical methods. The band gap energies of CdFeSe thin films were increased with the increase of Fe content. Electrochemical impedance spectroscopy, chronoamperometry, and photosensitivity of the film matrices were studied. In order to derive the functional parameters at the anode–electrolyte interface, the cell configuration, FTO/CdFeSe/S2––S x 2–/Pt, coupled with calomel reference electrode was used. Anodic stripping voltammetry was employed to investigate the inherent stability of the film matrices. The performance screening of the films ultimately indicates the best output in terms of photoconversion efficiency (η, %), fill factor (FF, %), and durability, at an optimal Fe content in the matrix.

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“…7,8 The main role of the sensitizers is generating photoelectrons upon illumination which is then injected into the conduction band of the semiconductor. 9,10 Mostly, high efficiency is obtained in DSSCs while using liquid electrolytes (LEs) consisting of ionic conductors. However, the LEs are related to the main problems, that is, the solvents cannot be consistent thermal stability, 11 easy oxidation/ evaporation in the air, electrode corrosion, and dye limiting to stability.…”

Section: Introductionmentioning

confidence: 99%

“…The alkyl‐functionalized carbazole‐based organic dye (MK‐2) has also proved to be highly efficient and has good long‐term stability upon fabrication of DSSCs 7,8 . The main role of the sensitizers is generating photo‐electrons upon illumination which is then injected into the conduction band of the semiconductor 9,10 . Mostly, high efficiency is obtained in DSSCs while using liquid electrolytes (LEs) consisting of ionic conductors.…”

Section: Introductionmentioning

confidence: 99%

Preparation of poly (ε‐caprolactone) as a gel electrolyte fordye‐sensitizedsolar cells

Gunasekaran

Ponnusamy

et al. 2022

Polymers for Advanced Techs

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Substantially to increase the efficiency of dye‐sensitized solar cells (DSSCs), it has been fabricated with the polymer gel electrolytes (PGEs) by replacing the liquid electrolytes (LEs). Poly (ε‐caprolactone) (PCL) has been synthesized as a crystalline solid biopolymer of about 74% yield using different 6‐membered ring phenolate Al complexes. As prepared PCL was blended with LE used in dye‐sensitized solar cells (DSSCs) to prepare high polydispersity index (PDI) PGE. The prepared PGE shows cross‐linking between carboxyl and hydroxyl groups and interacts with iodide ions to form a chelate complex structure. The PGE was well‐characterized using various analytical tools to demonstrate its structural and surface morphology. The fabricated DSSCs using PGE showed high ionic conductivity (7.76 × 10−4 S cm−1), good tri‐iodide diffusion (2.052 × 10−6 Cm2 S−1), and a highly stable incident photon‐to‐current conversion efficiency (PCE; 5.92%) under solar light illumination (85 mW cm−2). Besides found PGE has improved long‐term stability up to 15 days, and these results proved that the prepared PGE is superior compared to other reported PGEs.

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A novel ruthenium sensitizer with –OMe substituted phenyl-terpyridine ligand for dye sensitized solar cells

Cited by 21 publications

References 58 publications

Ruthenium (II) Complexes Bearing Heteroleptic Terpyridine Ligands: Synthesis, Photophysics and Solar Energy Conversion

Ruthenium (II) Complexes Bearing Heteroleptic Terpyridine Ligands: Synthesis, Photophysics and Solar Energy Conversion

Iron Doped CdSe Films with Improved Photosensitivity and Stability for Use in a Liquid Junction Solar Cell

Preparation of poly (ε‐caprolactone) as a gel electrolyte fordye‐sensitizedsolar cells

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