Articles with "benzo dithiophene" as a keyword



Triisopropylsilyl‐Substituted Benzo[1,2‐b:4,5‐c′]dithiophene‐4,8‐dione‐Containing Copolymers with More Than 17% Efficiency in Organic Solar Cells

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Published in 2021 at "Advanced Functional Materials"

DOI: 10.1002/adfm.202102371

Abstract: Considering the special functions of fused‐ring aromatic building blocks and Si‐atom in high‐performance donor–acceptor‐conjugated materials at the same time, herein the synthesis of a novel fused‐ring tricyclic heterocycle, triisopropylsilyl‐substituted benzo[1,2‐b:4,5‐c′]dithiophene‐4,8‐dione (iBDD‐Si), an isomer of well‐known… read more here.

Keywords: triisopropylsilyl substituted; benzo dithiophene; dithiophene dione; substituted benzo ... See more keywords
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Benzo[1,2‐b:4,5‐b′]Dithiophene–6,7‐Difluoroquinoxaline Small Molecule Donors with >8% BHJ Solar Cell Efficiency

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Published in 2017 at "Advanced Energy Materials"

DOI: 10.1002/aenm.201602804

Abstract: Solution-processable small molecule (SM) donors are promising alternatives to their polymer counterparts in bulk-heterojunction (BHJ) solar cells. While SM donors with favorable spectral absorption, self-assembly patterns, optimum thin-film morphologies, and high carrier mobilities in optimized… read more here.

Keywords: benzo dithiophene; small molecule; solar cell; dithiophene difluoroquinoxaline ... See more keywords

Polar Side Chain Effects on the Thermoelectric Properties of Benzo[1,2-b:4,5-b']Dithiophene-Based Conjugated Polymers.

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Published in 2019 at "Macromolecular rapid communications"

DOI: 10.1002/marc.201900082

Abstract: The molecular structure of polymers has a great influence on their thermoelectric properties; however, the relationship between the molecular structure of a polymer and its thermoelectric properties remains unclear. In this work, two benzo[1,2-b:4,5-b']dithiophene (BDT)-based… read more here.

Keywords: thermoelectric properties; benzo dithiophene; polar side; conjugated polymers ... See more keywords
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Effects of alkoxy substitution on molecular structure, physicochemical and photovoltaic properties of 2D-conjugated polymers based on benzo[1,2-b:4,5-b']dithiophene and fluorinated benzothiadiazole

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Published in 2017 at "Chemical Physics Letters"

DOI: 10.1016/j.cplett.2017.01.026

Abstract: Abstract Two donor-acceptor (D-A) copolymers (PMT-FBT and PET-FBT) with alkoxythiophene-substituted benzo[1,2-b:4,5-b′]dithiophene as donor unit and difluorobenzothiazole as acceptor unit, were synthesized and employed as donor material for polymer solar cells (PSCs). The comparative study showed… read more here.

Keywords: alkoxy substitution; benzo dithiophene; molecular structure; dithiophene ... See more keywords

Simultaneously enhancing the dielectric constant, photo-response and deepening HOMO levels of benzo[1,2-b;4,5-b']dithiophene derivatives-based conjugated polymers

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Published in 2020 at "Dyes and Pigments"

DOI: 10.1016/j.dyepig.2020.108263

Abstract: Abstract An alternating conjugated polymer (CPs) named as PBDT-TS-DPP, derived from 2-ethylhexylthiothiophen-2-yl-flanked (TS) benzo[1,2-b;4,5-b']dithiophene (BDT-TS) and diketopyrrolopyrrole derivatives (DPP), was prepared by Palladium-catalyzed Stille coupling reaction. The comparison investigations of the opto-electronic properties and aggregation… read more here.

Keywords: pbdt dpp; benzo dithiophene; homo; dielectric constant ... See more keywords

Growth Dynamics of Ultrathin Films of Benzo[1,2-b:4,5-b’]dithiophene Derivatives on Au(111): A Photoelectron Spectroscopy Investigation

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Published in 2023 at "Langmuir"

DOI: 10.1021/acs.langmuir.3c00572

Abstract: Ultrathin films of a stereoisomeric mixture of benzo[1,2-b:4,5-b’]dithiophene derivatives were grown by thermal evaporation in vacuum on Au(111), and they were studied in situ by photoelectron spectroscopy. X-ray photons from a non-monochromatic Mg Kα conventional… read more here.

Keywords: spectroscopy; photoelectron spectroscopy; benzo dithiophene; ultrathin films ... See more keywords

Molecular Engineering of D−π–A Copolymers Based on 4,8-Bis(4-chlorothiophen-2-yl)benzo[1,2-b:4,5-b′]dithiophene (BDT-T-Cl) for High-Performance Fullerene-Free Organic Solar Cells

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Published in 2019 at "Macromolecules"

DOI: 10.1021/acs.macromol.9b01233

Abstract: Molecular conformation has a striking function in dominating the molecular orientation, crystallinity, charge mobility, film morphology, and photovoltaic performance for classic donor−π–acceptor (D−π–A) type copolymers. Herein, we systematically investigate this correlation by modulating the chemical… read more here.

Keywords: dithiophene bdt; chlorothiophen benzo; performance; bis chlorothiophen ... See more keywords

Orange/Red Benzo[1,2-b:4,5-b′]dithiophene 1,1,5,5-Tetraoxide-Based Emitters for Luminescent Solar Concentrators: Effect of Structures on Fluorescence Properties and Device Performances

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Published in 2023 at "ACS Applied Energy Materials"

DOI: 10.1021/acsaem.3c00362

Abstract: Luminescent solar concentrators (LSCs) are a class of optical devices able to harvest, downshift, and concentrate sunlight, thanks to the presence of emitting materials embedded in a polymer matrix. Use of LSCs in combination with… read more here.

Keywords: luminescent solar; orange red; solar concentrators; benzo dithiophene ... See more keywords

Cathode Interface Layer-Free Sequential-Deposited Nonfullerene Acceptor Organic Solar Cells Via a 3-(N,N-Dimethylamino)propyloxy-Flanked Benzo[1,2-b; 4,5-b']dithiophene Electron-Extracting Additive.

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Published in 2025 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.5c18125

Abstract: Cathode interface layers (CILs), which are often built between the active layer and the metal cathode to facilitate electron collection and extraction, are highly necessary to develop stable and efficient organic solar cells (OSCs). However,… read more here.

Keywords: benzo dithiophene; solar cells; cathode interface; organic solar ... See more keywords

Organic Photosensitizers Incorporating Rigid Benzo[1,2-b:6,5-b']dithiophene Segment for High-Performance Dye-Sensitized Solar Cells.

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Published in 2017 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.7b15181

Abstract: Benzo[1,2-b:6,5-b']dithiophene (BDT) entity with rigid skeleton is introduced into the conjugated spacer of organic dyes, with triphenylamine as the electron donor and 2-cyanoacrylic acid as the acceptor, have been prepared for dye-sensitized solar cells. Inserting… read more here.

Keywords: benzo dithiophene; dye sensitized; sensitized solar; dithiophene ... See more keywords
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Synthesis of a quinoidal dithieno[2,3- d ;2′,3′- d ]benzo[2,1- b ;3,4- b ′]-dithiophene based open-shell singlet biradicaloid

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Published in 2017 at "Organic chemistry frontiers"

DOI: 10.1039/c6qo00543h

Abstract: A fused heteroacene derivative, bis(dicyanomethylene)-end-capped-dithieno[2,3-d;2′,3′-d]benzo[2,1-b;3,4-b′]-dithiophene (4CN-DTmBDT) was synthesized. Its open-shell biradical character in the ground state is studied by a combination of electron paramagnetic resonance (EPR) and nuclear magnetic resonance (NMR). Structural assignment was verified… read more here.

Keywords: synthesis quinoidal; open shell; benzo dithiophene; dithieno benzo ... See more keywords