Alkoxyl and alkyl bdt organic photovoltaic


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Donor Materials for Organic Solar Cell (OSC) | SpringerLink

Nov 26, 2014· BDT has been widely utilized in synthesizing high-performance photovoltaic materials, when copolymerized with TPD, a bunch of polymers (P86-92) was prepared with different alkyl side chains but the same backbone [82–84]. The experimental results indicated that controlling the number of aliphatic carbons in the linear N-alkyl-substituted TPD

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Asymmetric Alkyl Chain Engineering for Efficient and

3 days ago· Recent advancements in organic photovoltaic (OPV) cells have resulted in power conversion efficiencies (PCEs) surpassing 20%. However, the use of halogen solvents in the

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Redox‐Stability of Alkoxy‐BDT Copolymers and their Use for Organic

Apr 25, 2018· Organic semiconductors can be employed as the active layer in accumulation mode organic electrochemical transistors (OECTs), where redox stability in aqueous electrolytes is important for long‐term recordings of biological events. It is observed that alkoxy‐benzo[1,2‐b:4,5‐b′]dithiophene (BDT) copolymers can be extremely unstable when

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The alignment of HOMO and LUMO energy levels of

In this review, we offered an overview of the organic photovoltaic materials based on BDT from the aspects of backbones, functional groups, alkyl chains, and device performance, trying to provide

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Progress and Future Potential of All-Small-Molecule Organic

Apr 2, 2023· Organic solar cells have obtained a prodigious amount of attention in photovoltaic research due to their unique features of light weight, low cost, eco-friendliness, and semitransparency. A rising trend in this field is the development of all-small-molecules organic solar cells (ASM-OSCs) due to their merits of excellent batch-to-batch reproducibility, well

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Effects of Alkyl Side Chains of Small Molecule Donors on

Nov 2, 2021· The all small molecule organic solar cell (SM-OSC) with SM1 as donor and a narrow bandgap n-OS IDIC as acceptor demonstrated a high power conversion efficiency (PCE) of 10.11% and a high fill

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Benzodithiophenedione-based polymers: recent advances in organic

Dec 1, 2020· Over the past 20 years, significant progress has been made in organic photovoltaics (OPVs) due to its advantages of being cost-effective, being lightweight, and having flexible manufacturability.

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General synthesis routes of 2D-conjugated BDT-based polymers.

In Group 1, the BDT units in the polymers are substituted by alkoxyl groups; in Group 2, the three polymers possess identical backbone structures and alkyl side groups as the analogues in Group 1

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Asymmetric Alkoxy and Alkyl Substitution on Nonfullerene

Nov 30, 2020· @article{osti_1804529, title = {Asymmetric Alkoxy and Alkyl Substitution on Nonfullerene Acceptors Enabling High‐Performance Organic Solar Cells}, author = {Chen, Yuzhong and Bai, Fujin and Peng, Zhengxing and Zhu, Lei and Zhang, Jianquan and Zou, Xinhui and Qin, Yunpeng and Kim, Ha Kyung and Yuan, Jun and Ma, Lik‐Kuen and Zhang, Jie and

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Design considerations of photovoltaic polymers based on 2D-conjugated BDT.

In Group 1, the BDT units in the polymers are substituted by alkoxyl groups; in Group 2, the three polymers possess identical backbone structures and alkyl side groups as the analogues in Group 1

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(PDF) Asymmetric Alkoxy and Alkyl Substitution on Nonfullerene

Dec 4, 2020· In this paper, a strategy of asymmetric alkyl and alkoxy substitution is applied to state‐of‐the‐art Y‐series nonfullerene acceptors (NFAs), and it achieves great performance in organic

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Molecular Design of Benzodithiophene-Based Organic Photovoltaic

Jun 2, 2016· In this review, we offered an overview of the organic photovoltaic materials based on BDT from the aspects of backbones, functional groups, alkyl chains, and device performance, trying to provide a guideline about the structure-performance relationship. We believe more exciting BDT-based photovoltaic materials and devices will be developed in

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Synthesis and photovoltaic performance of a non-fullerene

Apr 1, 2021· Two different polymer donors J52 [73] and PBZ-2Si [67], with the same backbone units but different side chains (a branched alkyl side chain vs. a siloxane-terminated alkyl side chain) on the 2-dimensional benzodithiphene (BDT) unit, were chosen to pair with the acceptor to construct PSC devices, from which the side chain effect from the

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PBDB-T and its derivatives: A family of polymer donors enables

May 1, 2020· Sun and the coworkers introduced alkyl, alkoxyl and alkylthio substituted benzene rings on BDT unit and prepared the polymer donors named PBT1-O, PBT1-S and PBT1-C,

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Influence of the alkyl substitution position on photovoltaic properties

Mar 17, 2015· Three conjugated polymers based on thienyl-substituted benzodithiophene (BDT) and 4,7-bis-thienyl-benzothiadiazole (DTBT) with varied substitution positions of the alkyl side chains were synthesized to investigate the correlations between the structure and photovoltaic performance of the polymer photovoltaic materials. The three polymers named PBDTDTBT-p,

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Unveiling the effect of side chains and fluorination on the

Aug 1, 2023· Three random D-A copolymers containing thienopyrroledione (TPD) and benzodithiophene (BDT) named P-HBT-T, P-FBT-T, and P-FBT-O were synthesized. The effects of side chains on BDT and fluorination to benzothiadiazole on the photovoltaic performances of fabricated solar cells were investigated. The highest occupied molecular orbital (HOMO) levels

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Breaking the 10% Efficiency Barrier in Organic Photovoltaics

Organic photovoltaics (OPVs) have been broadly investigated bones and modulating alkyl side chains.[8] The BDT unit was synthesized and introduced into the field of OPV by Hou et al.[14] in

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Molecular Design toward Highly Efficient Photovoltaic

We introduce the basic considerations for the construction of 2D-conjugated BDT-based polymers and systematic molecular design guidelines. For example, simply modifying an alkoxyl-substituted BDT to form an alkylthienyl-substituted BDT

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(PDF) Molecular Design toward Highly Efficient Photovoltaic

Apr 29, 2014· For example, the introduction of a conjugated side chain with electron deficient groups (such as para-alkyl-phenyl, meta-alkoxyl-phenyl, and 2-alkyl-3-fluoro-thienyl) allowed us to modulate the

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(PDF) Molecular Design toward Highly Efficient Photovoltaic

Apr 29, 2014· For example, simply modifying an alkoxyl-substituted BDT to form an alkylthienyl-substituted BDT can improve the polymer hole mobilities substantially with little effect on their

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PBDB-T and its derivatives: A family of polymer donors enables

May 1, 2020· Sun and the coworkers introduced alkyl, alkoxyl and alkylthio substituted benzene rings on BDT unit and prepared the polymer donors named PBT1-O, PBT1-S and PBT1-C, respectively [55]. When blending with a NFA named ITCPTC, the PBT1-containing film shows an optimal interpenetrating morphology and thus obtained a high PCE of 12.8% in the OSC with

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Low‐cost and efficient organic solar cells based on

Sep 4, 2021· We then prepared a regioregular congener named PTVT-C12 (Figure 4), by copolymerizing monomers of alkyl ester-substituted thiophene-vinylene-thiophene (TVT) and V-Sn, to investigate the influence of regioregularity on photovoltaic properties of PTV derivatives. The higher regioregularity of PTVT-C12 was obtained by the locked direction of the

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Alkoxyl Side Chain Substituted Thieno[3,4

Aug 23, 2016· Request PDF | Alkoxyl Side Chain Substituted Thieno[3,4- c ]pyrrole-4,6-dione To Enhance Photovoltaic Performance with Low Steric Hindrance and High Dipole Moment | A series of N-OR substituted

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Branched Alkoxy Side Chain Enables High-Performance Non

Feb 21, 2022· This work reveals the importance of the branched alkyl chain topology in tuning the molecular packing and blend morphology, which leads to improved organic photovoltaic performance. View Show abstract

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Effect of Alkyl Side Chains in BDT and 2D‐BDT Small‐Molecules

Jul 30, 2024· Nine molecules based on benzo [1,2-b:4,5-b′]dithiophene (BDT) and 2D-BDT derivatives are studied as donor materials in organic photovoltaic (OPV) devices fabricated by

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[PDF] Replacing alkoxy groups with alkylthienyl groups: a feasible

Oct 4, 2011· This work designed an 5-alkylthiophene-2-yl-substituted BDT monomer and synthesized two new PBDTTT-based polymers having either the thieno[3,4b], 4,7-dithiophene, 2,1,3-benzothiadiazole, and bithiazole properties, which showed promising photovoltaic properties. Polymer solar cells (PSCs) have attracted much attention because of their potential

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Conjugated and Nonconjugated Substitution Effect on Photovoltaic

Sep 11, 2012· In this review, we offered an overview of the organic photovoltaic materials based on BDT from the aspects of backbones, functional groups, alkyl chains, and device performance, trying to provide

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Effects of Alkylthio and Alkoxy Side Chains in Polymer

Jan 12, 2016· The maximum PCE of 9.18% achieved using DTBDT-S-C8-TTR suggests that substituting both alkylthio and alkyl groups into DTBDT can yield small-molecule-based organic photovoltaics (OPVs) displaying

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Redox-Stability of Alkoxy-BDT Copolymers and their Use for Organic

Apr 25, 2018· Organic semiconductors can be employed as the active layer in accumulation mode organic electrochemical transistors (OECTs), where redox stability in aqueous electrolytes is important for long

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Full donor-type conjugated polymers consisting of alkoxy

Mar 1, 2013· Difluorinated polyme R PBDTSe-FFBT :PC71BM organic solar cell exhibited the highest photovoltaic performance of 2.63% with JSC of 7.24 mA cm⁻², VOC of 0.72 V and FF of 50.6% .

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(PDF) Influence of the alkyl substitution position on photovoltaic

Mar 1, 2015· For example, the introduction of a conjugated side chain with electron deficient groups (such as para-alkyl-phenyl, meta-alkoxyl-phenyl, and 2-alkyl-3-fluoro-thienyl) allowed us to modulate the

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Synthesis and photovoltaic performance of a non-fullerene

Jan 24, 2021· Side chain engineering has been proved to show profound impact on polymer properties and blend morphology. Herein, the critical role of siloxane‐terminated alkoxy side chains was revealed by a

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Synthesis and photovoltaic performance of a non-fullerene

Apr 1, 2021· The synthesis route of the i-IEOSi-4F with the siloxane-terminated alkoxyl side chain on the two thiophene π-bridges is depicted in Fig. 2, with detailed processes and characterizations of the compounds in Supporting Information.With 3-methoxythiophene as the starting material, compound 1 was obtained by p-toluenesulfonic acid-catalyzed

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Benzodithiophenedione-based polymers: recent advances in

Jan 24, 2020· Among numerous electron-accepting units, an emerging annelated thiophene of benzodithiophenedione (BDD) has exhibited a distinguished photovoltaic performance

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Redox‐Stability of Alkoxy‐BDT Copolymers and their Use for Organic

Feb 21, 2018· The choice of the comonomer strongly affects the energy levels and electron distribution of the resulting copolymer which allows the preparation of alkoxy-BDT copolymers with various ionization potentials (IPs), ranging from 4.4 to 5.2 eV 4-6 and allows the materials to be used in various applications such as organic photovoltaics (OPV) 7-9 and

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About Alkoxyl and alkyl bdt organic photovoltaic

About Alkoxyl and alkyl bdt organic photovoltaic

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