Panchromatic Donor–Acceptor–Donor Conjugated Oligomers for Dye-Sensitized Solar Cell Applications

Stalder, Romain; Xie, Dacheng; Islam, Ashraful; Li, Han; Reynolds, John R.; Schanze, Kirk S.

doi:10.1021/am501515s

Cited by 59 publications

(44 citation statements)

References 68 publications

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“…The use of nitrogen-containing heterocyclics as effective electron acceptors has been reported previously. [20,26,27] The two absorption bands, ah igh-energyb and around3 30 nm (blueshifted compared with X-34) for both ligands, followed by low-energy bands at 436 nm (QSB) or 472 nm (BTDSB), likely arise from the p-p*t ransition and charge-transfer transition, respectively.…”

Section: Resultsmentioning

confidence: 94%

Detection and Imaging of Aβ1‐42 and Tau Fibrils by Redesigned Fluorescent X‐34 Analogues

Zhang

Sandberg

Konsmo

et al. 2018

Chemistry A European J

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We revisited the Congo red analogue 2,5-bis(4'-hydroxy-3'-carboxy-styryl)benzene (X-34) to develop this highly fluorescent amyloid dye for imaging Alzheimer's disease (AD) pathology comprising Aβ and Tau fibrils. A selection of ligands with distinct optical properties were synthesized by replacing the central benzene unit of X-34, with other heterocyclic moieties. Full photophysical characterization was performed, including recording absorbance and fluorescence spectra, Stokes shift, quantum yield and fluorescence lifetimes. All ligands displayed high affinity towards recombinant amyloid fibrils of Aβ1-42 (13-300 nm K ) and Tau (16-200 nm K ) as well as selectivity towards the corresponding disease-associated protein aggregates in AD tissue. We observed that these ligands efficiently displaced X-34, but not Pittsburgh compound B (PiB) from recombinant Aβ1-42 amyloid fibrils, arguing for retained targeting of the Congo red type binding site. We foresee that the X-34 scaffold offers the possibility to develop novel high-affinity ligands for Aβ pathology found in human AD brain in a different mode compared with PiB, potentially recognizing different polymorphs of Aβ fibrils.

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Section: Resultsmentioning

confidence: 94%

Detection and Imaging of Aβ1‐42 and Tau Fibrils by Redesigned Fluorescent X‐34 Analogues

Zhang

Sandberg

Konsmo

et al. 2018

Chemistry A European J

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“…Dye-sensitized solar cells (DSSCs) consume good-looking, that's low production cost, low heaviness, mechanical flexibility, and ease to preparation techniques are compared to first and second generation photovoltaic cells [1][2][3][4][5][6][7]. The DSSCs contingent on four main factors, there are semiconducting materials, dye sensitizer, electrolytes, and counter electrode.…”

Section: Introductionmentioning

confidence: 99%

Effects of the bridge unit in D‐π‐A architecture to improve light harvesting efficiency at DSSCs: A first principle theoretical study

Madhu

Anbarasan

2017

Env Prog and Sustain Energy

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This work systematically has investigated on the issues of spacer modified at D‐π‐A based organic sensitizers for Dye‐Sensitized Solar Cells (DSSCs). The rigidity of the donor and electron acceptor namely triphenylamine and 2‐cyanobut‐2‐enoic acid with good electron with drawing moiety are used for this study. The first principle theoretical calculations, the general effects of electron flow/electron injection in the π‐spacer based modified organic sensitizers are initially examined and explained. All the computations were carried out within the DFT and TD‐DFT framework, using the B3LYP functional. The solvation effects were incorporated using the Conductor like Polarized Continuum Model (C‐PCM) for the acetonitrile (CH3CN). Finally, the photovoltaic effective factors like the light harvesting properties and vertical dipole moment are evaluated and could be practically useful to achieve the efficiency of the studied dyes in DSSCs devices. © 2017 American Institute of Chemical Engineers Environ Prog, 37: 1403–1410, 2018

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“…Several groups have developed panchromatic organic sensitizers for TiO2. [5][6][7] These generate high photocurrents (ca. 14 mA cm -2 for dyes TH304 and T4BTD-A in references 5 and 7), however, the efficiencies are rarely higher than those obtained using dyes with a narrower absorption band.…”

Section: Introductionmentioning

confidence: 99%

Can aliphatic anchoring groups be utilised with dyes for p-type dye sensitized solar cells?

et al. 2016

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A series of novel laterally anchoring tetrahydroquinoline derivatives have been synthesized and investigated for their use in NiO-based p-type dye-sensitized solar cells. The kinetics of charge injection and recombination at the NiO-dye interface for these dyes have been thoroughly investigated using picosecond transient absorption and time-resolved infrared measurements. It was revealed that despite the anchoring unit being electronically decoupled from the dye structure, charge injection occurred on a sub picosecond timescale. However, rapid recombination was also observed due to the close proximity of the electron acceptor on the dyes to the NiO surface, ultimately limiting the performance of the p-DSCs.

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Panchromatic Donor–Acceptor–Donor Conjugated Oligomers for Dye-Sensitized Solar Cell Applications

Cited by 59 publications

References 68 publications

Detection and Imaging of Aβ1‐42 and Tau Fibrils by Redesigned Fluorescent X‐34 Analogues

Detection and Imaging of Aβ1‐42 and Tau Fibrils by Redesigned Fluorescent X‐34 Analogues

Effects of the bridge unit in D‐π‐A architecture to improve light harvesting efficiency at DSSCs: A first principle theoretical study

Can aliphatic anchoring groups be utilised with dyes for p-type dye sensitized solar cells?

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