Novel iminocoumarin dyes as photosensitizers for dye-sensitized solar cell

Velappan, Kandavelu; Huang, Hsin-Sian; Jian, Jia-Liang; Yang, Thomas C.-K.; Wang, Kun‐Li; Huang, Sheng‐Tung

doi:10.1016/j.solener.2008.10.002

Cited by 51 publications

(17 citation statements)

References 25 publications

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“…On the other hand, the tunable structure, high molar extinction coefficient, low production cost, easier synthetic procedure, purification, and low toxicity of all organic dyes make them more suitable candidates for DSSC applications. Thus, a great number triarylamine, 8,9 iminocoumarin, 10 carbazole, 11,12 perylene, 13 and many other derivatives in order to enhance light harvesting on the metal oxide surface by adding various side chains, arranging the length of the π -bridge groups, or using acceptor and donor groups with different electron affinities.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and photovoltaic characterization of triarylamine-substituted quinoxaline push--pull dyes to improve the performance of dye-sensitized solar cells

Demirak¹,

Can²,

Ozsoy³

et al. 2017

Turk J Chem

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Novel unsymmetrical organic sensitizers having donor, π -spacer, and anchoring groups were designed and synthesized for dye-sensitized solar cell (DSSC) application. The dyes 3-{4- [7-(4-{bis[4-(hexyl)phenyl]amino} phenyl)-11,12-dibutoxy-1,4,5,8-tetrahydrodibenzo [a, c] phenazine-2-yl]phenyl} -2-cyano acrylic acid (KD-148) and 3-{5- [7-(4-{bis[4-(hexyloxy)phenyl]amino} phenyl)-11,12-dibutoxy-1,4,5,8-tetrahydrodibenzo [a, c] phenazine-2-yl]-2-thienyl} -2cyano acrylic acid (KD-150) were anchored onto TiO 2 and tested with ionic liquid electrolyte. The monochromatic incident photon-to-current conversion efficiencies (IPCE) of the dyes were 50% and 60% at 420 nm, respectively. The KD-150-sensitized solar cell gave a short-circuit current (I SC ) of 7.37 mA/cm 2 , an open-circuit voltage (V oc) of 560 mV, a fill factor (FF) of 0.56, and overall conversion efficiency ( η) of 2.32% whereas the standard dye Z-907 dye exhibited 14.51 mA/cm 2 of I SC , 630 mV of V oc , 0.45 of FF, and 4.08% of η under AM 1.5 illumination with power of 100 mW/cm 2 .

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Section: Introductionmentioning

confidence: 99%

Synthesis and photovoltaic characterization of triarylamine-substituted quinoxaline push--pull dyes to improve the performance of dye-sensitized solar cells

Demirak¹,

Can²,

Ozsoy³

et al. 2017

Turk J Chem

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“…Coumarin constitute the largest class of laser dyes in the 'blue-green' region [21][22][23][24][25]. Coumarin dyes have also been used as blue, green and red dopants in organic light-emitting diodes (OLEDs) [26][27][28], in dye-sensitized solar cells (DSSC) [29][30][31] and tailored to in vivo imaging applications [32][33][34][35]. In recent years Wang and co-workers report AIE active coumarin-based Schiff bases and successively put into applications in cell imaging [36].…”

Section: Introductionmentioning

confidence: 99%

AIE Based Coumarin Chromophore - Evaluation and Correlation Between Solvatochromism and Solvent Polarity Parameters

Lanke

Sekar

2015

J Fluoresc

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A new class of red emitting extensively conjugated donor-π-acceptor type dyes bearing coumarin units have been synthesized by condensation of 7-(diethylamino)-2-oxo-2 H-chromene-3-carbaldehyde with different active methylenes. All the dyes are characterized by (1)H NMR, (13)C NMR and HRMS spectroscopy. The photophysical behaviour and the relation between structure and properties of the coumarin "push-pull" derivatives were investigated experimentally. The dyes exhibited positive solvatochromism and solvatofluorism in solution of varying polarity. These coumarin dyes show aggregation induced emission properties with red emitting fluorescence. They show absorption in the range of 501-528 and emission in the range of 547-630 nm. We evaluated photophysical properties of coumarin dyes using solvotochromism and solvent dependent shift in the emission wavelength. All the synthesized coumarin dyes COS1-COS4 are showing very good solvatochromic properties.

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“…Generally, a DSSC device comprises a large band gap semiconductor nanocrystalline porous electrode which was fabricated on a transparent conducting oxide (TCO) glass and modified with dye (usually the ruthenium (II) complex), a Pt counter electrode and an electrolyte solution (usually I 3 − /I − in a mixture of organic solvents) between the two electrodes [3,4]. The role of semiconductor (e.g., anatase TiO 2 ) porous electrode is crucial, and the cell's overall energy conversion efficiency strongly depends on the surface and electronic properties of the electrode [4,5].…”

Section: Introductionmentioning

confidence: 99%

Effect of Organic Dye on the Photovoltaic Performance of Dye-Sensitized ZnO Solar Cell

Alomair¹,

Reda²,

Al-Hajri³

2014

ANP

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Novel iminocoumarin dyes as photosensitizers for dye-sensitized solar cell

Cited by 51 publications

References 25 publications

Synthesis and photovoltaic characterization of triarylamine-substituted quinoxaline push--pull dyes to improve the performance of dye-sensitized solar cells

Synthesis and photovoltaic characterization of triarylamine-substituted quinoxaline push--pull dyes to improve the performance of dye-sensitized solar cells

AIE Based Coumarin Chromophore - Evaluation and Correlation Between Solvatochromism and Solvent Polarity Parameters

Effect of Organic Dye on the Photovoltaic Performance of Dye-Sensitized ZnO Solar Cell

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