Small Molecule Acceptor and Polymer Donor Crystallinity and Aggregation Effects on Microstructure Templating: Understanding Photovoltaic Response in Fullerene-Free Solar Cells DOI

Nicholas D. Eastham,

Alexander S. Dudnik, Thomas J. Aldrich

et al.

Chemistry of Materials, Journal Year: 2017, Volume and Issue: 29(10), P. 4432 - 4444

Published: May 3, 2017

Perylenediimide (PDI) small molecule acceptor (SMA) crystallinity and donor polymer aggregation effects on bulk-heterojunction microstructure solar cell (PSC) performance are systematically investigated. Two high-performance polymers, semicrystalline poly[5-(2-hexyldodecyl)-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione-1,3-yl-alt-4,4″dodecyl-2,2′:5′,2″-terthiophene-5,5″-diyl] (PTPD3T or D1) amorphous poly{4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl-alt-(4-(2-ethylhexyl)-3-fluorothieno[3,4-b]thiophene-2-carboxylate-2,6-diyl) (PBDTT-FTTE D2), paired with three PDI-based SMAs (A1–A3) of differing (A1 is the most, A3 least crystalline). The resulting PSC trends strikingly different from those typical fullerene-based PSCs highly material-dependent. present reflect synergistic propensities between SMA components. Importantly, active layer morphology templated by PDI in some blends others, latter largely governed aggregation. Thus, PTPD3T templating capacity increases as self-aggregation (greater Mn), optimizing A2, while A3-based cells exhibit an inverse relationship performance, which dramatically PSCs. For PBDTT-FTTE, A2-based again deliver highest PCEs ∼5%, but here both A2 PBDTT-FTTE (medium Mn) template morphology. Overall, results underscore importance nonfullerene for offer guidelines pairing acceptable polymers.

Language: Английский

The development of conjugated polymers as the cornerstone of organic electronics DOI Creative Commons
Robert M. Pankow, Barry C. Thompson

Polymer, Journal Year: 2020, Volume and Issue: 207, P. 122874 - 122874

Published: Aug. 5, 2020

Language: Английский

Citations

97
C–H activation derived CPPs for photocatalytic hydrogen production excellently accelerated by a DMF cosolvent DOI
Weiya Huang,

Zhao‐Qi Shen,

Jing-Zhao Cheng

et al.

Journal of Materials Chemistry A, Journal Year: 2019, Volume and Issue: 7(42), P. 24222 - 24230

Published: Jan. 1, 2019

An atom-economic synthetic method is developed to access CPP materials used for photocatalytic H2 production from H2O, and the PHP reaction can be greatly accelerated by DMF cosolvent, leading an HER of 15 975 μmol g−1 h−1 without aid Pt.

Language: Английский

Citations

87
Semiconducting Polymers Based on Isoindigo and Its Derivatives: Synthetic Tactics, Structural Modifications, and Applications DOI

Xuyang Wei,

Weifeng Zhang, Gui Yu

et al.

Advanced Functional Materials, Journal Year: 2021, Volume and Issue: 31(21)

Published: March 5, 2021

Abstract The past few decades have witnessed the tremendous development of semiconducting polymers in electronic applications, which is inextricably related to diversity polymer structure. change structure significantly influences packing, thin film morphology, and other optoelectronic properties, thus meeting need for different device applications. With synthetic chemistry theoretical computation, many high‐performance building blocks emerged. Among them, isoindigo‐ isoindigo derivatives‐based are widely studied various fields organic electronics, them showed excellent properties. This review summarizes tactics isoindigo‐derived monomers polymers. Moreover, structural modification strategies discussed detail, including derivatives regulation type. Using polymers, such as field‐effect transistors, chemical sensors, electrochemical phototransistors, photovoltaics, thermoelectrics, spin valves, biophotonic introduced illustrate important effects modification.

Language: Английский

Citations

80
Low-cost materials for organic solar cells DOI
Fuwen Zhao, Jixiang Zhou, Dan He

et al.

Journal of Materials Chemistry C, Journal Year: 2021, Volume and Issue: 9(43), P. 15395 - 15406

Published: Jan. 1, 2021

This review summarizes the recent advances in low-cost materials for OSCs from aspects of synthetic method, active materials, interfacial and processing solution.

Language: Английский

Citations

80
A High‐Performance n‐Type Thermoelectric Polymer from C−H/C−H Oxidative Direct Arylation Polycondensation DOI
Yibo Shi, Xuwen Zhang, Tian Du

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(20)

Published: March 14, 2023

Abstract n‐Type conjugated polymers (CPs) are crucial in the applications of organic electronics. Direct coupling electron‐deficient C−H monomer via selective activation, namely C−H/C−H oxidative direct arylation polycondensation (Oxi‐DArP), is an ideal approach toward such CPs. Herein, Oxi‐DArP firstly adopted to synthesize a high‐performance n‐type CP using newly developed monomer, i.e., 3,6‐di(thiazol‐5‐yl)‐diketopyrrolopyrrole (Tz‐5‐DPP). Tz‐5‐DPP based homopolymer PTz ‐ 5 DPP with molecular weight 22 kDa has been synthesized Oxi‐DArP. After n‐doping, films exhibited electric conductivity values up 8 S cm −1 and power factors ( PFs ) 106 μW m K −2 . Notably, this PF value highest for polymer thermoelectric materials date. The synthesis excellent performance make work important step straightforward sustainable preparation semiconductors.

Language: Английский

Citations

25
Doped/Undoped A1‐A2 Typed Copolymers as ETLs for Highly Efficient Organic Solar Cells DOI

Lisi Yang,

Shuaishuai Shen,

Xiang Chen

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(36)

Published: May 13, 2023

Abstract The electron transport layer (ETL) is a critical component in achieving high device performance and stability organic solar cells. Conjugated polyelectrolytes (CPEs) have become an attractive alternative due to film‐forming properties ease of preparation. However, p‐type CPEs generally exhibit poor charge mobility conductivity, incorporation electron‐withdrawing units forming alternated D‐A conjugated backbone can make up for these deficiencies. Herein, the ratio withdrawing moieties are further increased two poly(A1‐alt‐A2) typed PIIDNDI‐Br PDPPNDI‐Br based on combination naphthalene diimide (NDI) with isoindigo (IID) or diketopyrrolopyrrole (DPP) via direct arylation polycondensation synthesized. These possess excellent alcohol solubility, suitable lowest unocuppied molecular orbital energy level, work function tunability. Surprisingly, IID DPP generate distinct self‐doping behaviors, which confirmed by UV–vis absorption ESR spectra. no matter doped undoped, both present better charge‐transporting conductivity when utilized as ETLs. display good universal compatibility blend PM6:Y6 PM6:L8‐BO, PCEs 18.32% 18.36% obtained, respectively, also storage stability. In short, different acceptors demonstrates efficient strategy design highly ETLs photovoltaic devices.

Language: Английский

Citations

24
Degradable π-Conjugated Polymers DOI
Azalea Uva,

Sofia Michailovich,

Nathan Sung Yuan Hsu

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(18), P. 12271 - 12287

Published: April 24, 2024

The integration of next-generation electronics into society is rapidly reshaping our daily interactions and lifestyles, revolutionizing communication engagement with the world. Future promise stimuli-responsive features enhanced biocompatibility, such as skin-like health monitors sensors embedded in food packaging, transforming healthcare reducing waste. Imparting degradability may reduce adverse environmental impact lead to opportunities for monitoring. While advancements have been made producing degradable materials encapsulants, substrates, dielectrics, availability conducting semiconducting remains restricted. π-Conjugated polymers are promising candidates development conductors or semiconductors due ability tune their stimuli-responsiveness, mechanical durability. This perspective highlights three design considerations: selection π-conjugated monomers, synthetic coupling strategies, degradation polymers, generating electronics. We describe current challenges monomeric present options circumvent these issues by highlighting biobased compounds known pathways stable monomers that allow chemically recyclable polymers. Next, we strategies compatible synthesis including direct arylation polymerization enzymatic polymerization. Lastly, discuss various modes depolymerization characterization techniques enhance comprehension potential byproducts formed during polymer cleavage. Our considers parameters parallel rather than independently while having a targeted application mind accelerate discovery high-performance organic

Language: Английский

Citations

13
Real-time monitoring polymerization degree of organic photovoltaic materials toward no batch-to-batch variations in device performance DOI Creative Commons
Lin-Yong Xu, Wei Wang, Xinrong Yang

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Feb. 10, 2024

Polymerization degree plays a vital role in material properties. Previous methodologies of molecular weight control generally cannot suppress or alleviate batch-to-batch variations device performance, especially polymer solar cells. Herein, we develop an in-situ photoluminescence system tandem with set analysis and processing procedures to track estimate the polymerization organic photovoltaic materials. To support development this protocol, introduce acceptor PYT constructed by near-infrared Y-series small molecule acceptors via Stille polymerization, shed light on correlations between weight, spectral parameters, efficiencies that enable design optical setup confirm its feasibility. The universality is verified derivatives stereoregularity fluoro-substitution as well benzo[1,2-b:4,5-b']dithiophene-based polymers. Overall, our result provides tool tailor suitable conjugated oligomers applied cells other electronics for industrial scalability desired cost reduction.

Language: Английский

Citations

9
Living Direct Arylation Polymerization via C–H Activation for the Precision Synthesis of Polythiophenes and Their Block Copolymers DOI

Silin Huang,

Chen-Chen Ye,

Y. Pan

et al.

Macromolecules, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

Language: Английский

Citations

1
Direct heteroarylation polymerization: guidelines for defect-free conjugated polymers DOI Creative Commons

Thomas Bura,

Serge Beaupré, Marc‐André Légaré

et al.

Chemical Science, Journal Year: 2017, Volume and Issue: 8(5), P. 3913 - 3925

Published: Jan. 1, 2017

New phosphine-based ligands and DFT calculations for defect-free conjugated polymers by direct (hetero)arylation polymerization (DHAP).

Language: Английский

Citations

80