scholarly journals Synthesis, Characterization, Photoluminescence Property of Al(III) Schiff Base Complexes and Their Applications in Forensic Fingerprint and Dye Sensitized Solar Cells

2020 ◽  
Vol 32 (6) ◽  
pp. 1427-1432
Author(s):  
M. Srinivas ◽  
N. Sulochana ◽  
G. Ramesh
Keyword(s):  
Schiff Base ◽  
Solar Cells ◽  
Condensation Reaction ◽  
Dye Sensitized Solar Cells ◽  
Organic Ligand ◽  
Schiff Base Complexes ◽  
Yellow Light ◽  
Pale Yellow ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Aluminium(III)-Schiff base complexes of bis(salicylidene)phenyl-1,2-diamino organic ligand derivatives were synthesized by condensation reaction with salicylaldehyde, substituted phenyl-1,2-diamine with aluminum trichloride and characterized by 1H NMR, FTIR, EDS and ICP-AAS. Photophysical properties like photoluminescence (PL) and IV characteristics were studied for the dye-sensitized solar cells (DSSCs) performance. The latent forensic finger print developments have also been demonstrated from the synthesized complexes. Photoluminescence studies revealed that emission peaks of the complexes in solution state appeared at 418- 572 nm and emitted blue and pale-yellow light. Latent fingerprint detection study indicated that the powder compounds show a good adhesion and finger ridge details without back ground staining. Based on these results, these Al(III) complexes can serve as a suitable non-dopant blue light as well as pale yellow light emitting compound for flat panel display applications and applied to detect latent fingerprints on variable substrates.

Multi‐Dentate Carbazole Based Schiff Base Dyes with Chlorovinylene Group in Spacer for Dye‐Sensitized Solar Cells: A Combined Theoretical and Experimental Study.

2019 ◽  
Vol 4 (14) ◽  
pp. 4044-4056 ◽  
Author(s):  
Prerana K M. Lokhande ◽  
Keval K. Sonigara ◽  
Manoj M. Jadhav ◽  
Dinesh S. Patil ◽  
Saurabh S. Soni ◽  
...  
Keyword(s):  
Experimental Study ◽  
Schiff Base ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

scholarly journals Fabrication of a counter electrode for dye-sensitized solar cells (DSSCs) using a carbon material produced with the organic ligand 2-methyl-8-hydroxyquinolinol (Mq)

2019 ◽  
Vol 1 (8) ◽  
pp. 3192-3199 ◽  
Author(s):  
Rahul Kumar ◽  
Veena Sahajwalla ◽  
Parag Bhargava
Keyword(s):  
Solar Cells ◽  
Carbon Material ◽  
Counter Electrode ◽  
Dye Sensitized Solar Cells ◽  
Organic Ligand ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

DSSCs fabricated using a carbon material showed a Jsc, Voc, and η of 11.00 mA cm−2, 0.75 V, and 4.25% respectively.

scholarly journals New Zn(II) Complexes of Substituted bis(Salicylidene)phenyl-1,2-diamino Based Organic Ligands: Synthesis, Photoluminescence, Applications in Forensic Fingerprint and Dye Sensitized Solar Cells

2020 ◽  
Vol 32 (4) ◽  
pp. 945-951
Author(s):  
M. Srinivas ◽  
N. Sulochana ◽  
G.R.Yogesh Kumar ◽  
K.M. Mahadevan ◽  
H.S. Bhojya Naik
Keyword(s):  
Solar Cells ◽  
Blue Light ◽  
Dye Sensitized Solar Cells ◽  
Organic Ligand ◽  
Flat Panel Display ◽  
Light Emitting ◽  
Dye Sensitized ◽  
Back Ground ◽  
Photoluminescence Studies ◽  
Sensitized Solar Cells

New azomethine-Zn(II) complexes of bis(salicylidene)phenyl-1,2-diamino organic ligand derivatives were synthesized by the reaction of salicylaldehyde, substituted phenyl-1,2-diamine with zinc acetate. The synthesized complexes were characterized by FTIR, 1H NMR and EDS. Their photophysical and electrochemical properties were studied and their applicability for dye-sensitized solar cells (DSSCs) and forensic finger print developments have been demonstrated. Photoluminescence studies revealed that the emission peaks of the complexes in solution state appeared at 372-406 nm and emitted blue light. Latent fingerprint detection study indicated that the powder compounds show good adhesion and finger ridge details without back ground staining. Based on these results, it was ascertained that these Zn(II) complexes can serve as a suitable non-dopant blue light emitting compound for flat panel display applications and applied to detect fingerprints on all types of smooth surfaces.

scholarly journals Schiff Base Ancillary Ligands in Bis(diimine) Copper(I) Dye-Sensitized Solar Cells

2020 ◽  
Vol 21 (5) ◽  
pp. 1735
Author(s):  
Elias Lüthi ◽  
Paola Andrea Forero Cortés ◽  
Alessandro Prescimone ◽  
Edwin C. Constable ◽  
Catherine E. Housecroft
Keyword(s):  
Schiff Base ◽  
Solar Cells ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Significant Loss ◽  
Aryl Group ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Five 6,6′-dimethyl-2,2′-bipyridine ligands bearing N-arylmethaniminyl substituents in the 4- and 4′-positions were prepared by Schiff base condensation in which the aryl group is Ph (1), 4-tolyl (2), 4-tBuC6H4 (3), 4-MeOC6H4 (4), and 4-Me2NC6H4 (5). The homoleptic copper(I) complexes [CuL2][PF6] (L = 1–5) were synthesized and characterized, and the single crystal structure of [Cu(1)2][PF6]·Et2O was determined. By using the “surfaces-as-ligands, surfaces-as-complexes” (SALSAC) approach, the heteroleptic complexes [Cu(6)(Lancillary)]+ in which 6 is the anchoring ligand ((6,6′-dimethyl-[2,2′-bipyridine]-4,4′-diyl)bis(4,1-phenylene))bis(phosphonic acid)) and Lancillary = 1–5 were assembled on FTO-TiO2 electrodes and incorporated as dyes into n-type dye-sensitized solar cells (DSCs). Data from triplicate, fully-masked DSCs for each dye revealed that the best-performing sensitizer is [Cu(6)(1)]+, which exhibits photoconversion efficiencies (η) of up to 1.51% compared to 5.74% for the standard reference dye N719. The introduction of the electron-donating MeO and Me2N groups (Lancillary = 4 and 5) is detrimental, leading to a decrease in the short-circuit current densities and external quantum efficiencies of the solar cells. In addition, a significant loss in open-circuit voltage is observed for DSCs sensitized with [Cu(6)(5)]+, which contributes to low values of η for this dye. Comparisons between performances of DSCs containing [Cu(6)(1)]+ and [Cu(6)(4)]+ with those sensitized by analogous dyes lacking the imine bond indicate that the latter prevents efficient electron transfer across the dye.

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