Novel metal-free organic dyes containing linear planar 11,12-dihydroindolo[2,3-a]carbazole donor for dye-sensitized solar cells: Effects of π spacer and alkyl chain

Zhang, Hai; Chen, Zhen-E; Hu, Jiefang; Hong, Yanping

doi:10.1016/j.dyepig.2019.01.033

Cited by 32 publications

(7 citation statements)

References 49 publications

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“…Monohexyl trimers have been synthesized by Pd-catalyzed Kumada [ 85 ] and Stille coupling [ 86 , 87 ]. Dihexyl trimers substituted in 3 and 3″ were prepared via Ni- [ 88 , 89 , 90 , 91 , 92 , 93 , 94 ] or Pd-catalyzed Kumada coupling [ 95 ], Suzuki coupling [ 96 , 97 ] and Stille coupling [ 98 ]. Dihexyl derivates in position 3′,4′ were obtained through a variant of Ni-catalyzed Kumada reaction [ 99 ].…”

Section: Trimer Structuresmentioning

confidence: 99%

Thiophene-Based Trimers and Their Bioapplications: An Overview

et al. 2021

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Certainly, the success of polythiophenes is due in the first place to their outstanding electronic properties and superior processability. Nevertheless, there are additional reasons that contribute to arouse the scientific interest around these materials. Among these, the large variety of chemical modifications that is possible to perform on the thiophene ring is a precious aspect. In particular, a turning point was marked by the diffusion of synthetic strategies for the preparation of terthiophenes: the vast richness of approaches today available for the easy customization of these structures allows the finetuning of their chemical, physical, and optical properties. Therefore, terthiophene derivatives have become an extremely versatile class of compounds both for direct application or for the preparation of electronic functional polymers. Moreover, their biocompatibility and ease of functionalization make them appealing for biology and medical research, as it testifies to the blossoming of studies in these fields in which they are involved. It is thus with the willingness to guide the reader through all the possibilities offered by these structures that this review elucidates the synthetic methods and describes the full chemical variety of terthiophenes and their derivatives. In the final part, an in-depth presentation of their numerous bioapplications intends to provide a complete picture of the state of the art.

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Section: Trimer Structuresmentioning

confidence: 99%

Thiophene-Based Trimers and Their Bioapplications: An Overview

et al. 2021

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“…The ground-state geometric structure of the ICZ single crystal belongs to the monoclinic system ( P 2 1 / c point group), and molecular packing has a typical herringbone configuration. , Such a favorable crystal arrangement, that is, ICZ as the main core for the π-conjugated donor materials, helps obtain good optoelectronic performance. Its derivatives have attracted considerable interest during the last few years in organic photovoltaic applications, such as light-emitting diodes, , field-effect transistors, and solar cells. − …”

Section: Introductionmentioning

confidence: 99%

Singlet Fission, Polaron Formation, and Energy Transfer in Indolo[3,2-b]carbazole Thin Films and Single Crystals

Zhao

Kloc

et al. 2021

J. Phys. Chem. C

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The ultrafast excited-state relaxation dynamics of indolo-[3,2-b]carbazole (ICZ) molecules were investigated in thin films and single crystals. In the ICZ film, singlet fission (SF) was directly observed both from the upper excited singlet states S N within 480−850 fs and from the upper vibrational levels of the singlet state S 1 within 6−11 ps, which fully suppressed the intramolecular charge transfer (CT) process in S 1 . In the ICZ crystal, the exciton relaxation through SF and polaron formation compete in the ultrafast timescale (<30 fs), which is accompanied by a thermally induced broadening of the S 1 −S N absorption band in the transient absorption spectra. The triplet-state lifetime is shortened from ICZ crystals (>1 ms) to films (2 μs) due to SF with subsequent triplet−triplet annihilation, suggesting the impact of well-structured crystallinity and molecular packing on the exciton transport dynamics. The efficient SF together with well-characterized energy transfer and CT properties of ICZ solids extends the usage of ICZ-core-based organic materials in photovoltaic and electrochemical applications.

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“…[ 25,26 ] These monomers have already been widely studied for their electronic, optic, and electrochromic properties for sensors, organic light‐emitting diode (OLED) or photovoltaic applications. [ 27–32 ] Their electropolymerization leads to various nanostructures from fibers and nanoparticles networks to even vertically aligned nanotubes. [ 33 ]…”

Section: Introductionmentioning

confidence: 99%

“…[25,26] These monomers have already been widely studied for their electronic, optic, and electrochromic properties for sensors, organic light-emitting diode (OLED) or photovoltaic applications. [27][28][29][30][31][32] Their electropolymerization leads to various nanostructures from fibers and nanoparticles networks to even vertically aligned nanotubes. [33] The water content of the polymerization solvent also plays a huge part in the morphology of the resulting nanostructures, increasing their porosity.…”

Section: Introductionmentioning

confidence: 99%

Designing Tunable Omniphobic Surfaces by Controlling the Electropolymerization Sites of Carbazole‐Based Monomers

Fradin

Guittard

Darmanin

2021

Macro Chemistry & Physics

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Carbazole‐based monomers are electrodeposited in dichloromethane with different water content and water pH in order to control the surface micro‐ and nanostructures. The presence of water makes the depositions more porous by the formation of a micellar soft template. Due to the presence of the free amine groups, the water acidity plays a role on the structure of the monomers by protonation, limiting their polymerization ways and thus controlling the morphology of the structures. The wetting properties are tuned either by deprotonation of the depositions, or fluorinated postgrafting. Surfaces reach superhydrophobic and oleophobic properties.

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Novel metal-free organic dyes containing linear planar 11,12-dihydroindolo[2,3-a]carbazole donor for dye-sensitized solar cells: Effects of π spacer and alkyl chain

Cited by 32 publications

References 49 publications

Thiophene-Based Trimers and Their Bioapplications: An Overview

Thiophene-Based Trimers and Their Bioapplications: An Overview

Singlet Fission, Polaron Formation, and Energy Transfer in Indolo[3,2-b]carbazole Thin Films and Single Crystals

Designing Tunable Omniphobic Surfaces by Controlling the Electropolymerization Sites of Carbazole‐Based Monomers

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