Tailoring of energy levels in (2Z)-2-cyano-2-[2-[(E)-2-[2-[(E)-2-(p-tolyl)vinyl]thieno[3,2-b]thiophen-5-yl]vinyl]pyran-4-ylidene]acetic acid derivatives via conjugate bridge and fluorination of acceptor units for effective D–π–A dye-sensitized solar cells: DFT–TDDFT approach

2016 ◽  
Vol 43 (3) ◽  
pp. 1863-1879 ◽  
Author(s):  
Banjo Semire ◽  
Abel Kolawole Oyebamiji ◽  
Olusegun Ayobami Odunola
Keyword(s):  
Acetic Acid ◽  
Solar Cells ◽  
Energy Levels ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Sensitizers containing donor cascade and rhodanine-3-acetic acid moieties for dye-sensitized solar cells

Solar Energy ◽  
2011 ◽  
Vol 85 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Quan-Ping Wu ◽  
Lu Zhang ◽  
Mao Liang ◽  
Zhe Sun ◽  
Song Xue
Keyword(s):  
Acetic Acid ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

scholarly journals Energy levels of natural sensitizers extracted from rengas (Gluta spp.) and mengkulang (Heritiera elata) wood for dye-sensitized solar cells

2017 ◽  
Vol 6 (2) ◽  
Author(s):  
Nur ezyanie Safie ◽  
Norasikin Ahmad ludin ◽  
Norul Hisham Hamid ◽  
Suhaila Sepeai ◽  
Mohd Asri Mat Teridi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Levels ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

D-D-π-A organic dye containing rhodanine-3-acetic acid moiety for dye-sensitized solar cells

2016 ◽  
Vol 26 (4) ◽  
pp. 288-290 ◽  
Author(s):  
Ming-Dao Zhang ◽  
Cheng-Yan Huang ◽  
Ming-Xia Song ◽  
Dan-Xia Zhao ◽  
Hui Cao ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Organic Dye ◽  
Acid Moiety ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Synthesis and Mechanistic Studies of Organic Chromophores with Different Energy Levels for p-Type Dye-Sensitized Solar Cells

2010 ◽  
Vol 114 (10) ◽  
pp. 4738-4748 ◽  
Author(s):  
Peng Qin ◽  
Joanna Wiberg ◽  
Elizabeth A. Gibson ◽  
Mats Linder ◽  
Lin Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Levels ◽  
Dye Sensitized Solar Cells ◽  
Mechanistic Studies ◽  
Organic Chromophores ◽  
Dye Sensitized ◽  
P Type ◽  
Sensitized Solar Cells

scholarly journals Guest-Host Interactions in Symmetrical Carboxy Heptamethine Cyanine Dyes-Titanium Dioxide Systems: Synthesis, Theoretical Calculations, Aggregation Properties, and Application in Dye-Sensitized Solar Cells

2021 ◽  
Vol 2021 ◽  
pp. 1-17
Author(s):  
Rodrigo da Costa Duarte ◽  
Matheus Costa de Oliveira ◽  
Josene Maria Toldo ◽  
Paulo Fernando Bruno Gonçalves ◽  
Marcos José Leite Santos ◽  
...  
Keyword(s):  
Solar Cells ◽  
Active Sites ◽  
Theoretical Calculations ◽  
Energy Levels ◽  
Dye Sensitized Solar Cells ◽  
Fluorescence Emission ◽  
Cyanine Dyes ◽  
Cell Efficiency ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

In this work, the role of deoxycholic acid (DCA) as a coadsorbent was investigated in the sensitization of mesoporous TiO2 layers (host) with symmetrical carboxy heptamethine cyanine dyes (guest). Different approaches have been tested, aimed at reducing the H-aggregation and minimizing the competition between cyanine molecules and DCA for active sites of the host, thus improving solar cell efficiency. Heptamethine cyanines containing carboxylic anchoring groups were obtained with good yields. The cyanines present UV-Vis absorption in methanol and dimethylformamide solutions ascribed to fully allowed electronic transitions ( 1 π π ∗ ), as well as fluorescence emission in the NIR region, with any evidence of aggregations in both ground and excited states. TD-DFT calculations were also performed in order to study the geometry and charge distribution of these compounds in their ground and excited electronic states. Solid-state photophysics indicates that the cyanines showed excellent adsorption on TiO2, which can be justified by the presence of the -COOH moieties in the structure. Photophysical measurements have revealed the best concentrations of dye and DCA, which resulted in efficient inhibition of cyanine H-aggregates on the TiO2 surface in addition to allow large dye loading. HOMO and LUMO energy levels of the dyes were identified by cyclic voltammetry, showing oxidation and reduction potentials within acceptable limits for application as a photosensitizer in dye-sensitized solar cells (DSSCs) based on a TiO2 mesoporous photoanode. Assembled DSSCs have shown a large improvement of the electrical parameters and efficiency when a balance between dye aggregation and the competition to the host active sites was reached.

Long-term stability of novel double rhodanine indoline dyes having one and two anchor carboxyl group(s) in dye-sensitized solar cells

RSC Advances ◽  
2016 ◽  
Vol 6 (39) ◽  
pp. 33111-33119 ◽  
Author(s):  
M. Matsui ◽  
N. Tanaka ◽  
Y. Kubota ◽  
K. Funabiki ◽  
J. Jin ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Carboxyl Group ◽  
Long Term Stability ◽  
Dye Sensitized ◽  
Improved Stability ◽  
Sensitized Solar Cells ◽  
Acceptor Moiety

An indoline dye having both α-cyanoacrylic and rhodanine acetic acid anchor groups at the acceptor moiety exhibited improved stability upon fluorescence lamp irradiation.

Rhodaninedyes for dye-sensitized solar cells :  spectroscopy, energy levels and photovoltaic performance

2009 ◽  
Vol 11 (1) ◽  
pp. 133-141 ◽  
Author(s):  
Tannia Marinado ◽  
Daniel P. Hagberg ◽  
Maria Hedlund ◽  
Tomas Edvinsson ◽  
Erik M. J. Johansson ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Levels ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Sensitized Solar Cells
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