Developments of Diketopyrrolopyrrole‐Dye‐Based Organic Semiconductors for a Wide Range of Applications in Electronics

Advanced Materials, Год журнала: 2019, Номер 32(4)

Опубликована: Дек. 3, 2019

Abstract In recent times, fused aromatic diketopyrrolopyrrole (DPP)‐based functional semiconductors have attracted considerable attention in the developing field of organic electronics. Over past few years, DPP‐based demonstrated remarkable improvements performance both field‐effect transistor (OFET) and photovoltaic (OPV) devices due to favorable features DPP unit, such as excellent planarity better electron‐withdrawing ability. Driven by this success, materials are now being exploited various other electronic including complementary circuits, memory devices, chemical sensors, photodetectors, perovskite solar cells, light‐emitting diodes, more. Recent developments use for a wide range summarized, focusing on OFET, OPV, newly developed with discussion device terms molecular engineering. Useful guidance design future exploration more advanced applications is provided.

Язык: Английский

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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

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Recent Progress of Fluorinated Conjugated Polymers

Advanced Materials, Год журнала: 2024, Номер 36(32)

Опубликована: Июнь 3, 2024

Abstract In recent years, conjugated polymers have received widespread attention due to their characteristic advantages of light weight, favorable solution processability, and structural modifiability. Among various polymers, fluorinated ones developed rapidly achieve high‐performance n ‐type or ambipolar polymeric semiconductors. The uniqueness contains the high coplanarity structures, lower frontier molecular orbital energy levels, strong nonbonding interactions. this review, first building blocks, including benzene thiophene rings, B←N bridged units, fluoroalkyl side chains are summarized. Subsequently, different synthetic methods described, with a special focus on respective disadvantages. Then, these numerous structures appropriate bear in mind, properties applications such as cyclopentadithiophene‐, amide‐, imide‐based embedded systematically discussed. introduction fluorine atoms can further enhance electron‐deficiency backbone, influencing charge carrier transport performance. promising applied widely organic field‐effect transistors, solar cells, thermoelectric devices, other opto‐electric devices. Finally, outlook challenges future development is

Язык: Английский

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Acceptor Modulation Strategies for Improving the Electron Transport in High‐Performance Organic Field‐Effect Transistors

Advanced Materials, Год журнала: 2021, Номер 34(22)

Опубликована: Окт. 4, 2021

High-performance ambipolar and electronic type semiconducting polymers are essential for fabricating various organic optoelectronic devices complementary circuits. This review summarizes the strategies of improving electron transport via acceptor modulation strategies, which include use single, dual, triple, multiple, all acceptors as well fusion multiple identical to obtain new heterocyclic acceptors. To further improve polymers, introduction strong electron-withdrawing groups can enhance ability donors acceptors, thereby facilitating injection suppressing hole accumulation. In addition, relationships between molecular structure, frontier orbital energy levels, thin film morphology, microstructure, processing conditions, device performances also comprehensively discussed. Finally, challenges encountered in this research area proposed future outlook is presented.

Язык: Английский

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An Amorphous n‐Type Conjugated Polymer with an Ultra‐Rigid Planar Backbone

Angewandte Chemie International Edition, Год журнала: 2022, Номер 62(2)

Опубликована: Ноя. 8, 2022

High charge carrier mobility polymer semiconductors are always semi-crystalline. Amorphous conjugated polymers represent another kind of with different transporting mechanism. Here we report the first near-amorphous n-type decent electron mobility, which features a remarkably rigid, straight and planar backbone. The molecular design strategy is to copolymerize two fused-ring building blocks both electron-accepting, centrosymmetrical planar. alternating copolymer double B←N bridged bipyridine (BNBP) unit benzobisthiazole (BBTz) unit. It shows 0.34 cm2 V-1 s-1 in organic field-effect transistors. excellent property possibly due ultrahigh backbone stiffness, small π-π stacking distance, high weight.

Язык: Английский

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Diketopyrrolopyrrole (DPP)-Based Polymers and Their Organic Field-Effect Transistor Applications: A Review

Macromolecular Research, Год журнала: 2022, Номер 30(2), С. 71 - 84

Опубликована: Фев. 1, 2022

Язык: Английский

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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

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High‐Performance Organic Electrochemical Transistors Achieved by Optimizing Structural and Energetic Ordering of Diketopyrrolopyrrole‐Based Polymers

Advanced Materials, Год журнала: 2023, Номер 36(4)

Опубликована: Ноя. 22, 2023

Abstract For optimizing steady‐state performance in organic electrochemical transistors (OECTs), both molecular design and structural alignment approaches must work tandem to minimize energetic microstructural disorders polymeric mixed ionic–electronic conductor films. Herein, a series of poly(diketopyrrolopyrrole)s bearing various lengths aliphatic–glycol hybrid side chains (PDPP‐ m EG; = 2–5) is developed achieve high‐performance p‐type OECTs. PDPP‐4EG polymer with the optimized length exhibits excellent crystallinity owing enhanced lamellar backbone interactions. Furthermore, improved ordering films significantly decreases trap state density disorder. Consequently, PDPP‐4EG‐based OECT devices produce mobility–volumetric capacitance product ([ µC *]) 702 F V −1 cm s hole mobility 6.49 ± 0.60 2 . Finally, for achieving optimal along channel direction, floating film transfer method employed reinforce unidirectional orientation chains, leading substantially increased figure‐of‐merit [ *] over 800 The research demonstrates importance chain engineering conductors conjunction their anisotropic optimization maximize characteristics.

Язык: Английский

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Eco-friendly semiconducting polymers: from greener synthesis to greener processability

Journal of Materials Chemistry C, Год журнала: 2020, Номер 8(42), С. 14645 - 14664

Опубликована: Янв. 1, 2020

This review presents emerging strategies for materials scientists to design, prepare and process semiconducting polymers in a more sustainable eco-friendly manner.

Язык: Английский

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Half‐Fused Diketopyrrolopyrrole‐Based Conjugated Donor–Acceptor Polymer for Ambipolar Field‐Effect Transistors

Advanced Functional Materials, Год журнала: 2020, Номер 30(21)

Опубликована: Март 20, 2020

Abstract A novel building block, denoted as half‐fused diketopyrrolopyrrole (DPP) (9‐(3‐octadecylhenicosyl)‐8‐(thiophen‐2‐yl)‐7 H ‐pyrrolo[3,4‐ a ]thieno[3,2‐ g ]indolizine‐7,10(9 )‐dione), in which one of the flanking thiophene units is fused to DPP rings via carbon‐carbon double bond at N‐position reported. The successfully utilized an electron acceptor prepare conjugated donor–acceptor polymer PTFDFT , exhibits ambipolar semiconducting behavior ambient air. Theoretical calculations and absorption spectral studies show that backbone more planar compared reference with conventional units. As result, shows narrow bandgap low lowest unoccupied molecular orbital level. fewer side chains favors dense packing short π–π stacking distance (3.49 Å). Grazing‐incidence wide‐angle X‐ray scattering data further confirm predominant edge‐on mode on substrate. expected, thin film excellent properties under conditions, reaching 2.23 1.08 cm 2 V −1 s for n‐ p‐channels, respectively. In addition, complementary‐like inverter gain value high 141 constructed using film.

Язык: Английский

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