scholarly journals Synthesis, characterization, and theoretical studies of the photovoltaic properties of novel reactive azonitrobenzaldehyde derivatives

RSC Advances ◽  
2021 ◽  
Vol 11 (45) ◽  
pp. 28433-28446
Author(s):  
Hitler Louis ◽  
Izubundu B. Onyebuenyi ◽  
Joseph O. Odey ◽  
Azuaga T. Igbalagh ◽  
MaryJane T. Mbonu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Azo Dyes ◽  
Dye Sensitized Solar Cells ◽  
Theoretical Studies ◽  
Coupling Reactions ◽  
Photovoltaic Properties ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Reactive Azo Dyes

Four novel reactive azo-dyes were experimentally synthesized from p-aminobenzaldehyde, 4-amino-3-nitrobenzaldehyde, and aniline through series of condensation and coupling reactions, and their properties were assessed for possible application in dye-sensitized solar cells.

scholarly journals [1,2,5]Thiadiazolo[3,4-d]Pyridazine as an Internal Acceptor in the D-A-π-A Organic Sensitizers for Dye-Sensitized Solar Cells

Molecules ◽  
2019 ◽  
Vol 24 (8) ◽  
pp. 1588 ◽  
Author(s):  
Chmovzh ◽  
Knyazeva ◽  
[email protected] Tanaka ◽  
Popov ◽  
Mikhalchenko ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Nucleophilic Aromatic Substitution ◽  
High Electron ◽  
Coupling Reactions ◽  
Aromatic Substitution ◽  
Photovoltaic Properties ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Organic Sensitizers

Four new D-A-π-A metal-free organic sensitizers for dye-sensitized solar cells (DSSCs), with [1,2,5]thiadiazolo[3 ,4-d]pyridazine as internal acceptor, thiophene unit as π-spacer and cyanoacrylate as anchoring electron acceptor, have been synthesized. The donor moiety was introduced into [1,2,5]thiadiazolo[3,4-d]pyridazine by nucleophilic aromatic substitution and Suzuki cross-coupling reactions, allowing design of D-A-π-A sensitizers with the donor attached to the internal heterocyclic acceptor not only by the carbon atom, as it is in a majority of DSSCs, but by the nitrogen atom also. Although low values of power conversion efficiency (PCE) were found, a few important consequences were identified: (i) poor PCE data can be attributed to high electron deficiency of the internal [1,2,5]thiadiazolo[3,4-d]pyridazine acceptor due to lower light harvesting by the dye; (ii) the manner in which the donor was attached to the internal acceptor (by carbon or nitrogen) did not play an essential role in the photovoltaic properties of the dyes; (iii) dyes based on the novel donor 2,3,4,4a,9,9a-hexahydro-1H-1,4-methanocarbazolyl and 9-(p-tolyl)-2,3,4,4a,9,9a-hexahydro-1H- carbazole moieties showed similar photovoltaic properties to dyes based on the well-known 4-(p-tolyl)-1,2,3,3a,4,8b-hexahydrocyclopenta[b]indolyl building block, which opens the door for further optimization potential of new dye families.

scholarly journals Structure and photovoltaic properties of ZnO nanowire for dye-sensitized solar cells

2012 ◽  
Vol 7 (1) ◽  
Author(s):  
Ming-Cheng Kao ◽  
Hone-Zern Chen ◽  
San-Lin Young ◽  
Chen-Cheng Lin ◽  
Chung-Yuan Kung
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Zno Nanowire ◽  
Photovoltaic Properties ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Novel Zinc Porphyrin Sensitizers for Dye-Sensitized Solar Cells: Synthesis and Spectral, Electrochemical, and Photovoltaic Properties

2009 ◽  
Vol 15 (6) ◽  
pp. 1403-1412 ◽  
Author(s):  
Cheng-Wei Lee ◽  
Hsueh-Pei Lu ◽  
Chi-Ming Lan ◽  
Yi-Lin Huang ◽  
You-Ren Liang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Photovoltaic Properties ◽  
Zinc Porphyrin ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

scholarly journals Incorporation of Kojic Acid-Azo Dyes on TiO2 Thin Films for Dye Sensitized Solar Cells Applications

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Carolynne Zie Wei Sie ◽  
Zainab Ngaini
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Azo Dyes ◽  
Kojic Acid ◽  
Organic Dyes ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Tio2 Thin Films ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Sensitization of heavy metal free organic dyes onto TiO2 thin films has gained much attention in dye sensitized solar cells (DSSCs). A series of new kojic acid based organic dyes KA1–4 were synthesized via nucleophilic substitution of azobenzene bearing different vinyl chains A1–4 with kojyl chloride 4. Azo dyes KA1–4 were characterized for photophysical properties employing absorption spectrometry and photovoltaic characteristic in TiO2 thin film. The presence of vinyl chain in A1–4 improved the photovoltaic performance from 0.20 to 0.60%. The introduction of kojic acid obtained from sago waste further increases the efficiency to 0.82–1.54%. Based on photovoltaic performance, KA4 achieved the highest solar to electrical energy conversion efficiency (η = 1.54%) in the series.

scholarly journals Synthesis of Novel 3,6-Dithienyl Diketopyrrolopyrrole Dyes by Direct C-H Arylation

Molecules ◽  
2020 ◽  
Vol 25 (10) ◽  
pp. 2349
Author(s):  
Amsalu Efrem Yemene ◽  
Vishwesh Venkatraman ◽  
David Moe Almenningen ◽  
Bård Helge Hoff ◽  
Odd Reidar Gautun
Keyword(s):  
Solar Cells ◽  
Organic Dyes ◽  
Dye Sensitized Solar Cells ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
Dye Sensitized ◽  
Cross Coupling Reactions ◽  
Palladium Catalyzed ◽  
Limited Application ◽  
Sensitized Solar Cells

Direct C-H arylation coupling is potentially a more economical and sustainable process than conventional cross-coupling. However, this method has found limited application in the synthesis of organic dyes for dye-sensitized solar cells. Although direct C-H arylation is not an universal solution to any cross-coupling reactions, it efficiently complements conventional sp2−sp2 bond formation and can provide shorter and more efficient routes to diketopyrrolopyrrole dyes. Here, we have applied palladium catalyzed direct C-H arylation in the synthesis of five new 3,6-dithienyl diketopyrrolopyrrole dyes. All prepared sensitizers display broad absorption from 350 nm up to 800 nm with high molar extinction coefficients. The dye-sensitized solar cells based on these dyes exhibit a power conversion efficiency in the range of 2.9 to 3.4%.

Effect of Layer-by-Layer Assembled SnO2 Interfacial Layers in Photovoltaic Properties of Dye-Sensitized Solar Cells

Langmuir ◽  
2012 ◽  
Vol 28 (28) ◽  
pp. 10620-10626 ◽  
Author(s):  
Yong Joo Kim ◽  
Kyeong Ha Kim ◽  
Paul Kang ◽  
Hark Jin Kim ◽  
Young Sik Choi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Layer By Layer ◽  
Photovoltaic Properties ◽  
Interfacial Layers ◽  
Dye Sensitized ◽  
Sensitized Solar Cells
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