Chinese Chemical Letters, Год журнала: 2024, Номер 35(8), С. 109749 - 109749
Опубликована: Март 9, 2024
Язык: Английский
Coatings, Год журнала: 2023, Номер 13(9), С. 1657 - 1657
Опубликована: Сен. 21, 2023
Inorganic semiconductors like silicon and germanium are the foundation of modern electronic devices. However, they have certain limitations, such as high production costs, limited flexibility, heavy weight. Additionally, depletion natural resources required for inorganic semiconductor raises concerns about sustainability. Therefore, exploration development organic offer a promising solution to overcome these challenges pave way new era electronics. New applications optoelectronic devices been made possible by recent emergence semiconductors. Numerous innovative results on performance charge transport discovered with growth These discoveries opened up possibilities devices, solar cells, light-emitting diodes, field-effect transistors. The use materials in has potential revolutionise electronics industry providing low-cost, flexible, lightweight alternatives traditional materials. understanding carrier is crucial efficient This review offers thorough overview phenomenon focus underlying physical mechanisms how it affects device performance. processes generation recombination given special attention. Furthermore, this provides valuable insights into fundamental principles that govern behaviour carriers materials, which can inform design optimisation future
Язык: Английский
Процитировано
45
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(20)
Опубликована: Март 8, 2024
Abstract Conjugated polymers (CPs) with low crystallinity are promising candidates for application in organic thermoelectrics (OTEs), particularly flexible devices, because the disordered structures of these CPs can effectively accommodate dopants and ensure robust resistance to bending. However, n‐doped usually exhibit poor thermoelectric performance, which hinders development high‐performance generators. Herein, we report an n‐type CP (ThDPP‐CNBTz) comprising two acceptor units: a thiophene‐flanked diketopyrrolopyrrole cyano‐functionalized benzothiadiazole. ThDPP‐CNBTz shows LUMO energy level below −4.20 eV features crystallinity, enabling high doping efficiency. Moreover, dual‐acceptor design enhances polaron delocalization, resulting good performance. After n‐doping, exhibits average electrical conductivity ( σ ) 50.6 S cm −1 maximum power factor (PF) 126.8 μW m K −2 , is among highest values reported solution‐processed date. Additionally, OTE device based on doped PF 70 ; also remarkable bending strain, only marginal change after 600 cycles. The findings presented this work will advance devices particular.
Язык: Английский
Процитировано
20
Angewandte Chemie International Edition, Год журнала: 2025, Номер unknown
Опубликована: Янв. 2, 2025
Abstract The last decade has witnessed significant progress in organic electrochemical transistors (OECTs) due to their enormous potential applications various bioelectronic devices, such as artificial synapses, biological interfaces, and biosensors. remarkable advance this field is highly powered by the development of novel mixed ionic/electronic conductors (OMIECs). π‐Conjugated polymers (CPs), which are widely used optoelectronics, emerging key channel materials for OECTs. In review, after briefly introducing OECT, we then mainly focus on latest CPs high‐performance correlations structure, basic physicochemical properties, device performance elucidated evaluating electronic characters, optoelectronic OECT performance. Then, CP‐based OECTs presented. Finally, discuss several remaining issues or challenges give our insights into advancing enhanced
Язык: Английский
Процитировано
5
Materials Today, Год журнала: 2023, Номер 71, С. 152 - 173
Опубликована: Окт. 30, 2023
Язык: Английский
Процитировано
31
Chemistry of Materials, Год журнала: 2023, Номер 36(1), С. 28 - 53
Опубликована: Дек. 18, 2023
Organic semiconductors (OSCs) have emerged as promising materials for a variety of organic electronic devices due to their unique combination electrical conductivity, mechanical flexibility, and processability. Despite significant advancements in the performance functionalities devices, widespread adoption stems from challenges long-term operational stability sensitivity moisture oxygen ambient air. Although several reviews respective fields highlight role molecular structure optimizing device performance, unified picture achieve air these is still lacking. To this end, review provides an in-depth thermodynamic consideration redox reactions involving species pristine or doped OSCs that limit corresponding This also explores recent both polymer dopant design rationalizes commonalities drive development air-stable conducting polymers various applications. The insights presented contribute understanding critical played by realization reliable commercially viable devices.
Язык: Английский
Процитировано
25
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(11)
Опубликована: Янв. 24, 2024
Abstract Developing low‐cost and high‐performance n‐type polymer semiconductors is essential to accelerate the application of organic thermoelectrics (OTEs). To achieve this objective, it critical design strong electron‐deficient building blocks with simple structure easy synthesis, which are for development semiconductors. Herein, we synthesized two cyano‐functionalized highly blocks, namely 3,6‐dibromopyrazine‐2‐carbonitrile (CNPz) 3,6‐Dibromopyrazine‐2,5‐dicarbonitrile (DCNPz), feature structures facile synthesis. CNPz DCNPz can be obtained via only one‐step reaction three‐step reactions from cheap raw materials, respectively. Based on DCNPz, acceptor–acceptor (A–A) polymers, P(DPP‐CNPz) P(DPP‐DCNPz) successfully developed, featuring deep‐positioned lowest unoccupied molecular orbital (LUMO) energy levels, beneficial thin‐film transistors (OTFTs) OTEs performance. An optimal unipolar electron mobility 0.85 1.85 cm 2 V −1 s P(DPP‐DCNPz), When doped N ‐DMBI, show high electrical conductivities/power factors 25.3 S /41.4 μ W m K −2 , 33.9 /30.4 Hence, pyrazine represent a new class structurally simple, readily accessible block constructing
Язык: Английский
Процитировано
16
Advanced Materials, Год журнала: 2024, Номер 36(37)
Опубликована: Март 29, 2024
2D conjugated polymers (2DCPs) possess extended in-plane π-conjugated lattice and out-of-plane π-π stacking, which results in enhanced electronic performance potentially unique band structures. These properties, along with predesignability, well-defined channels, easy postmodification, order structure attract extensive attention from material science to organic electronics. In this review, the recent advance interfacial synthesis conductivity tuning strategies of 2DCP thin films, as well their application electronics is summarized. Furthermore, it shown that, by combining topology design targeted adjustment, researchers have fabricated films predesigned active groups, highly ordered structures, conductivity. exhibit great potential for various thin-film electronics, such transistors, memristors, electrochromism, chemiresistors, photodetectors. Finally, future research directions perspectives 2DCPs are discussed terms synthetic engineering fabrication fully functional manipulation applications
Язык: Английский
Процитировано
14
ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(26), С. 9947 - 9956
Опубликована: Июнь 20, 2024
Piezo-photocatalysis is an emerging approach that combines the piezoelectric effect with optical properties of a semiconductor to promote effective separation charge carriers. However, current piezocatalytic materials often suffer from poor catalytic efficiency and limited practicality due weak built-in electric field induced by mechanical energy. Herein, we introduce unique intergrowth ferroelectric SrBi8Ti7O27 nanosheets as green high-performance piezo-photocatalyst for CO2 reduction pollutant degradation. Compared single ferroelectrics Bi4Ti3O12 SrBi4Ti4O15, SrBi8Ti7O27, strongest spontaneous polarization field, achieves superior piezo-photocatalytic CO2-to-CO conversion (361.34 μmol g–1 h–1). Moreover, our design also degrades high-concentration organic pollutants (100 mg/L) up ∼100% within 60 min, notably outperforming most standalone untreated piezo-photocatalysts reported date. These findings provide valuable insights development highly efficient multifunctional sustainable energy, environmental, chemical applications.
Язык: Английский
Процитировано
11
Advanced Materials Technologies, Год журнала: 2024, Номер unknown
Опубликована: Март 26, 2024
Abstract The rise of artificial intelligence and the Internet Things have spurred an increasing demand for wearable, sustainable, maintenance‐free power sources. Organic thermoelectric (OTE) devices are emerged as promising candidates because they capable converting heat energy into electricity directly without need moving parts, flexible seamless integration with multifunctional miniaturized electronics. In addition, OTE can perform straightforward various self‐powered sensors, boosting their applications in field intelligent interactions. This review focuses on recent advances materials harvesting sensing. basic knowledge key parameters presented, followed by detailed introduction progress generators, other OTE‐integrated devices. Next, several aspects optimizing toward highlighted. Finally, overview current challenges future research directions OTE‐based is addressed. It hoped that this pave way speeding up a bright development practical
Язык: Английский
Процитировано
9
ACS Materials Letters, Год журнала: 2024, Номер 6(7), С. 2569 - 2576
Опубликована: Май 24, 2024
Poly(benzodifurandione) (n-PBDF) has garnered significant interest as it displays the highest reported n-type electrical conductivity among π-conjugated polymers. Earlier theoretical studies of n-PBDF could not rationalize this high conductivity. Here, we explore geometric and electronic properties two-dimensional (2D) three-dimensional (3D) networks using first-principles calculations tight-binding models. In 2D networks, a metallic configuration occurs when considering coplanar geometry with BDF moieties bounded to protons on same side; however, backbone torsions disrupt behavior. contrast, all 3D architectures consistently lead nature, which is impacted by variations in proton positions stacking patterns. Tight-binding models allowed us evaluate respective strengths intra- interchain couplings n-PBDF. Overall, our investigations provide comprehensive picture into shed light how they are affected system dimensionality, positions,
Язык: Английский
Процитировано
7