Recent advances in n-type and ambipolar organic semiconductors and their multi-functional applications

Chemical Society Reviews, Год журнала: 2023, Номер 52(4), С. 1331 - 1381

Опубликована: Янв. 1, 2023

A comprehensive summary and deep insights into the synthesis, characterization multi-functional device applications of n-type ambipolar organic semiconductors are provided in this study.

Язык: Английский

---

Group 16 conjugated polymers based on furan, thiophene, selenophene, and tellurophene

Chemical Society Reviews, Год журнала: 2022, Номер 51(15), С. 6442 - 6474

Опубликована: Янв. 1, 2022

This review systematically summarizes the history and recent progress in synthesis, properties, post-polymerization modifications of chalcogenophene-based homopolymers copolymers.

Язык: Английский

---

Discovery of Organic Optoelectronic Materials Powered by Oxidative Ar–H/Ar–H Coupling

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(2), С. 1224 - 1243

Опубликована: Янв. 4, 2024

Efficient and streamlined synthetic methods that facilitate the rapid build-up of structurally diverse π-conjugated systems are paramount importance in quest for organic optoelectronic materials. Among these methods, transition-metal-catalyzed oxidative Ar–H/Ar–H coupling reactions between two (hetero)arenes have emerged as a concise effective approach generating wide array bi(hetero)aryl fused heteroaryl structures. This innovative bypasses challenges associated with substrate pre-activation processes, thereby allowing creation frameworks were previously beyond reach using conventional Ar–X/Ar–M reactions. These inherent advantages ushered new design patterns molecules deviate from traditional methods. ground-breaking enables transcendence limitations repetitive material structures, ultimately leading to discovery novel high-performance In this Perspective, we provide an overview recent advances development materials through utilization We introduce several notable strategies domain, covering both directed non-directed strategies, dual chelation-assisted strategy ortho-C–H arylation/cyclization strategy. Additionally, shed light on role advancement Finally, discuss current existing protocols offer insights into future prospects field.

Язык: Английский

---

Cross‐Dehydrogenative Coupling Polymerization via C−H Activation for the Synthesis of Conjugated Polymers

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(21)

Опубликована: Фев. 28, 2023

Owing to their versatile (opto)electronic properties, conjugated polymers have found application in several organic electronic devices. Cross-coupling reactions such as Stille, Suzuki, Kumada couplings, and direct arylation proved be effective for synthesis. More atom-efficient oxidative polymerization has also been reported making homopolymers. However, growing interest toward donor-acceptor led the recent emergence of cross-dehydrogenative coupling (CDC) synthesize alternating copolymers without any prefunctionalization monomers. Metal-catalyzed cross-coupling two simple arenes via double C-H activation, or an arene with alkene Heck-type reaction used so far CDC polymerization. In this article, we discuss development protocols along relevant small molecule improved understanding these reactions.

Язык: Английский

---

A High‐Performance n‐Type Thermoelectric Polymer from C−H/C−H Oxidative Direct Arylation Polycondensation

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(20)

Опубликована: Март 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.

Язык: Английский

---

Recent developments in polymer semiconductors with excellent electron transport performances

Chemical Society Reviews, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

This review describes the design considerations, bonding modes between monomers, structural modification strategies, and applications of polymer semiconductors with excellent electron transport performances.

Язык: Английский

---

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

Macromolecules, Год журнала: 2025, Номер unknown

Опубликована: Фев. 27, 2025

Язык: Английский

---

Precise control of conjugated polymer synthesis from step-growth polymerization to iterative synthesis

Giant, Год журнала: 2023, Номер 14, С. 100154 - 100154

Опубликована: Апрель 14, 2023

Conjugated polymers with excellent optoelectronic properties, easy processability, and flexible physical properties are versatile in various applications. In recent years, the precise synthesis of conjugated has attracted much attention due to close relationship between structure property. From perspective polymerization mechanism, synthetic methods can be classified into step-growth polymerization, chain-growth iterative synthesis. synthesis, polymer becomes more controllable. this review, we introduce these three approaches prepare controllable structures based on transition metal-catalyzed cross-coupling reactions further reveal control over chemical structures, including length, regioregularity, sequence, topology. The is great significance for functional a specific structure, which paves way fabricating high-performance devices.

Язык: Английский

---

Aza[5]helicene‐Derived Semiconducting Polymers for Improved Performance in Perovskite Solar Cells: Exploring Energetic and Morphological Influences

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(18)

Опубликована: Фев. 16, 2024

Abstract The strategic design of solution‐processable semiconducting polymers possessing both matched energy levels and elevated glass transition temperatures is urgent importance in the progression thermally robust n‐i‐p perovskite solar cells with efficiencies exceeding 25 %. In this work, we employed direct arylation polymerization to achieve high‐yield synthesis three aza[5]helicene‐derived copolymers distinct HOMO exceptional temperatures. Upon integration these into formamidinium lead triiodide‐based cells, marked disparities photovoltaic parameters manifest, primarily stemming from variations electrical conductivity film morphology hole transport layers. p‐A5HP‐E‐POZOD‐E copolymer, featuring a main chain comprising alternating repeats aza[5]helicene, ethylenedioxythiophene, phenoxazine, attains an initial average efficiency 25.5 %, markedly surpassing reference materials such as spiro‐OMeTAD (23.0 %), PTAA (17.0 P3HT (11.6 %). Notably, exhibits high cohesive density, resulting enhanced Young's modulus diminished external species diffusion coefficients, thereby conferring 85 °C tolerance operational stability.

Язык: Английский

---

Selective Extraction and Quantification of Hemoglobin Based on a Novel Molecularly Imprinted Nanopolymeric Structure of Poly(acrylamide-vinyl imidazole)

ACS Omega, Год журнала: 2024, Номер 9(16), С. 18458 - 18468

Опубликована: Апрель 15, 2024

Imbalances in hemoglobin (Hb) levels can lead to conditions such as anemia or polycythemia, emphasizing the importance of precise Hb extraction from blood. To address this, a novel synthetic imprinted polymer was meticulously developed for capturing and separating Hb. Poly(acrylamide-vinylimidazole) nanopolymer (poly(AAm-VIM)) synthesized using acrylamide vinyl imidazole functional monomers through surfactant-free emulsion polymerization. Characterization FTIR, particle size, zeta potential, SEM ensured polymer's structure. The Hb-imprinted (Hb-poly(AAm-VIM)) demonstrated notable specificity, with calculated Hb-specific adsorption value (Qmax) 3.7377 mg/g medium containing 2.5 mg/mL molecularly (MIP) exhibited approximately 5 times higher than nonimprinted (NIP). Under same conditions, displayed 2.39 2.17 greater selectivity over competing proteins bovine serum albumin (BSA) lysozyme (Lys), respectively. Also, SDS-PAGE analysis results confirmed purification by nanopolymer. These underscore heightened specificity efficacy selectively targeting atoms among other proteins. Incorporating polymers is justified their affinity, cost-effectiveness, facile production. This research contributes valuable insights into optimizing efficient extraction, potential medical diagnostics treatment applications.

Язык: Английский

---