••A block copolymer (D180.8-s-PEHDT0.2) incorporating rigid and soft blocks is designed.
Wearable organic solar cells (OSCs), including intrinsically stretchable (IS)-OSCs, demand a.
High power conversion efficiency (PCE) and mechanical robustness are dual requisites for wearable applications of organic solar cells (OSCs). Here, we simultaneo.
polymer solar cellsmechanical robustnessstretchabilityintrinsically stretchable organic solar cellsconjugated.
As the market for wearable electronic devices continues to expand rapidly, intrinsically stretchable organic solar cells (IS-OSCs) have gained substantial attention a.
The chemical structures of poly[(2,6-(4,8-bis(5-(2-ethylhexyl-3-fluoro)thiophen-2-yl)-benzo[1,2-b:4,5-b′]dithiophene))-alt-5,5′-(5,8-bis(4-(2-butyloctyl)thiophen-2-yl)dithieno[.
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Dec 1, 2023· PTB7Th-b-PNDI donor-acceptor block copolymers were synthesized by sequential Stille reactions. Inclusion of 5 % of the donor-acceptor block copolymer by weight in the active layer can effectively reduce thermal degradation by 30 % for photovoltaic devices under thermal stress at 110 °C for 168 h, while not sacrificing initial PCE.
copolymer sequence, composition, and concentration. Herein, we determine the impact of these parameters by synthesizing random, block, and gradient copolymers with a poly(3-hexylthiophene) (P3HT) backbone and side-chain fullerenes (PC 61 BM). We evaluate these copolymers as compatibilizers in photovoltaic devices with P3HT:PC 61
Oct 3, 2010· Request PDF | Donor–Acceptor Block Copolymers with Nanoscale Morphology for Photovoltaic Applications | Extensive research activities in synthesis and device engineering have been devoted to the
Jan 31, 2011· This article focuses on self-assembled photovoltaic materials based on a new class of semiconducting block copolymers for application in photovoltaic devices ics discussed include the materials concept for efficient photovoltaic-device structures, their macromolecular design and synthesis, and their performance in relation to their molecular, mesoscopic, and
Dec 7, 2009· The block copolymers were synthesized via copper(I)-catalyzed 1,3-dipolar azide–alkyne cycloaddition of azido-functionalized AcMal7 and end-functionalized P3HT with alkyne group prepared by
5.2.3 Optimized Block Copolymer Photovoltaic Performance is Independent of the Crystalline Texture in the Active Layer..... 103 5.2.4 Differences in Thickness Dependence of Block Copolymer Photovoltaic
The propensity of some block copolymers to phase segregate at the nano-scale is of particular interest in the field of organic photovoltaics (OPV), where separation of the electron donor and
Jun 28, 2016· This work is the most comprehensive to date on all-conjugated block copolymer systems and suggests that photovoltaic performance of block copolymers depends strongly on the miscibility of donor
Conjugated block copolymers (BCPs), including rod–coil and rod–rod BCPs, exhibit excellent flexibility for tuning the band gap of semiconductor polymers, regulating the molecular organization of donor (and/or acceptor) units, templating the film morphology of active layers, and achieving well-defined BHJ architectures. In this Feature
In this case, through rational synthetic protocols, block copolymers (BCPs) effectively connect organic segments, further minimizing the procedures for preparing ready-to-coat organic
Nov 1, 2023· Morphology manipulation of photoactive layer through block copolymer to improve the photovoltaic performances of polymer solar cells. Author links open overlay panel Qiao Wang a 1, Kaige Ma a 1, Die Wang b, The block copolymer PS-b-PAA is added into CB solvent to obtain different concentration solution of 0.6, 0.4 and 0.2 mg/ml, then these
Also, in the case of block copolymer/fullerene blends, the copolymer microphase separation has been found to be less affected by the C60 crystallization than for fullerene-grafted block copolymers.[34,39] In particular, the pristine DEH-PPV-b-P4VP nanostructure was shown to be preserved when blended with 10% C60 and to be thermally stable up to
May 1, 2010· Semantic Scholar extracted view of "Optoelectronics using block copolymers" by I. Botiz et al. Rod–coil and all-conjugated block copolymers for photovoltaic applications. A. Yassar L. Miozzo Ramona Gironda G. Horowitz. Materials Science, Physics. 2013; 131. Save.
Nanoscale domains of donor and acceptor materials are crucial for charge generation in organic photovoltaic devices. These domains are difficult to achieve reproducibly in blended materials, but could be engineered into single-material active layers composed of donor–acceptor block copolymers (BCPs). In this work, we report the synthesis and purification of two novel fully
DOI: 10.1016/J.PROGPOLYMSCI.2012.10.001 Corpus ID: 97164176; Rod–coil and all-conjugated block copolymers for photovoltaic applications @article{Yassar2013RodcoilAA, title={Rod–coil and all-conjugated block copolymers for photovoltaic applications}, author={Abderrahim Yassar and Luciano Miozzo and Ramona Gironda and Gilles Horowitz}, journal={Progress in Polymer
Jun 17, 2024· The effect of rigid-block length in elastomer-containing photoactive block copolymers on the photovoltaic and mechanical properties of polymer solar cells† Heung-Goo Lee, ‡ a Jin-Woo Lee, ‡ a Eun Sung Oh, ‡ b Michael J. Lee, c Taek-Soo Kim, * b Changyeon Lee * d and Bumjoon J. Kim * a
Jan 12, 2010· We present results obtained using a drift-diffusion model for the structure−property correlations in photovoltaic devices based on self-assembly of rod−coil block copolymers. We use a self-consistent field theory model to generate the self-assembly morphologies of rod−coil block copolymers in confined situations. The density and orientational order parameter profiles so
Feb 25, 2002· It has been predicted that nano-phase separated block copolymer systems containing electron rich donor blocks and electron deficient acceptor blocks may facilitate the charge carrier separation
Jan 17, 2024· Notably, the photovoltaic performance of the D18 0.8-s-PEHDT 0.2:L8-BO OSCs was the highest among the fabricated OSC devices, showing a PCE value of 19.03 and PEHDT OSCs (PCE = 5.0% and COS = 30.7%). We also demonstrated that the block copolymer design was important for optimizing both performance aspects by comparing with random
Oct 19, 2016· Hydrophilic tetraethylene glycol moieties are incorporated into the electron-accepting block of a donor–acceptor block copolymer (BCP) to afford two novel amphiphilic materials based on the P3HT
May 28, 2022· Our study was the first to perform fluorination on photovoltaic block copolymers and provides insight into precisely controlling the polymer structure and understanding the structure–property
Aug 2, 2020· This is achieved by incorporating a P3HT 50 - b -PSS x block copolymer as an interfacial layer between the hole transporting and photoactive layers, which results in the
Feb 21, 2023· The OSCs based on multicomponent photoactive layer deliver a high power conversion efficiency of 11.8% and exhibit excellent device stability for over 1000 h (>80% of
May 1, 2013· Rod–coil and all-conjugated block copolymers can self-assemble into well-ordered morphologies and provide an exciting approach to rationally design and control the nanoscale
Jan 1, 2010· Different possible donor–acceptor active layer morphologies in OPV devices. The left drawing depicts a macrophase separated polymer blend morphology with undefined domains. In the middle and at the right, schematic active layer morphologies of disordered and vertically aligned microphase separated block copolymer thin films are shown.Dark and light grey
Dec 1, 2023· In this study, we propose a new molecular design to simultaneously achieve high photovoltaic and mechanical performances in organic solar cells (OSCs) using conjugated polymer donors (D18-s-PEHDT PDs) consisting of
gradient, and diblock[19] copolymers with three different theo-retical HT:BrHT ratios (80:20, 65:35, and 50:50; pp. S24–S44, Supporting Information).[15] The gradient copolymers were prepared by initiating HT polymerization and then gradually adding BrHT. The block copolymers were prepared by adding precatalyst to a solution
Aug 24, 2010· Nanostructures generated from block copolymer self-assembly enable a variety of potential technological applications. In this article we review recent work and the current status of two major emerging applications of block copolymer (BCP) nanostructures: lithography for microelectronics and photovoltaics. We review the progress in BCP lithography in relation to
Dec 1, 2023· Ds) consisting of electroactive rigid and soft blocks. Specifically, we integrate rigid and soft blocks to synthesize block-copolymer-ized P Ds(D18 0.8-s-PEHDT 0.2) having an appropriate molecular weight of D18 blocks to reach the effective conjugation length and of PEHDT blocks to achieve high mechanical properties. As a result, the D18 0.8-s
Jun 1, 2002· The nanostructures of a series of rod–coil block copolymers, designed for photovoltaic applications, are studied by atomic force microscopy and transmission electron microscopy. The copolymers
Here, we demonstrate control of donor–acceptor heterojunctions through microphase-separated conjugated block copolymers. When utilized as the active layer of photovoltaic cells, block
All-conjugated block copolymers may be an effective route to self-assembled photovoltaic devices, but we lack basic information on the relationship between molecular characteristics and photovoltaic performance. Here, we synthesize a library of poly(3-hexylthiophene) (P3HT) block poly((9,9-dialkylfluorene)-2,7-diyl-alt-[4,7-bis(alkylthiophen-5-yl)-2,1,3-benzothiadiazole]-2′,2″
Apr 1, 2014· The performance and stability of organic photovoltaic (OPV) devices based upon bulk heterojunction blends of donor and acceptor materials have been shown to be highly dependent on the morphology of the active layer. Block copolymers, which naturally self-assemble into periodic ordered nanostructures, can be utilized in diverse ways to control morphology on
Dec 10, 2021· Block copolymers have aroused much interest, and their application has been rapidly expanded. In recent years, our group has committed to exploring synthesis and self-assembly of block copolymers. We have designed and synthesized several new thermo-responsive polymers and photo-responsive polymers by living/controlled radical polymerization
In this work, a rod–coil block copolymer, based on a regio-regular poly(3-hexylthiophene) electron-donor rod block and a C60-grafted coil block, is used as compatibilizer and its influences on the thin film morphology as well as the photovoltaic performances are investigated.
Dec 21, 2016· In this chapter, this approach toward creating microstructures in D–A block copolymers is reviewed. So far, polymer physics has described mostly the phase behavior of coil–coil (amorphous or liquid-like) block copolymers, that is, where both blocks exhibit a rather small persistence length (or Kuhn segment length), making them rather flexible.
Jan 1, 2015· The incorporation of nanoscopic particles into ordered nanostructures afforded by block copolymers can provide control over particle distribution and orientation. This could enable the development of engineered nanomaterials that have enhanced properties such as mechanical, optical, electrical, or barrier. [188], photovoltaic, thermal [149
Jun 1, 2016· As a donor block copolymer, P3HT-b-PDMS was prepared via the polymer–polymer coupling reaction between homopolymers as shown in Scheme 1.Regioregular poly(3-hexylthiophene) with a bromo-substituted terminal (P3HT-Br) was synthesized by Grignard metathesis polymerization of 2,5-dibromo-3-hexylthiophene using a nickel catalyst [44].The
As the photovoltaic (PV) industry continues to evolve, advancements in block copolymers and photovoltaic have become critical to optimizing the utilization of renewable energy sources. From innovative battery technologies to intelligent energy management systems, these solutions are transforming the way we store and distribute solar-generated electricity.
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