Stable n‐Type Perylene Derivative Ladder Polymer with Antiambipolarity for Electrically Reconfigurable Organic Logic Gates DOI
Xihu Wu, Qiang He, Zhongliang Zhou

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(31)

Published: March 26, 2024

Abstract Organic electrochemical transistors (OECTs) are one of the promising building blocks to realize next‐generation bioelectronics. To date, however, performance and signal processing capabilities these devices remain limited by their stability speed. Herein, authors demonstrate stable fast n ‐type organic based on a side‐chain‐free ladder polymer, poly(benzimidazoanthradiisoquinolinedione). The device demonstrated normalized transient speed 0.56 ± 0.17 ms um −2 excellent long‐term in aqueous electrolytes, with no significant drop its doping current after 50 000 successive doping/dedoping cycles 2‐month storage at ambient conditions. These unique characteristics make this polymer especially suitable for bioelectronics, such as being used pull‐down channel complementary inverter detection electrophysiological signals. Moreover, developed shows reversible anti‐ambipolar behavior, enabling reconfigurable electronics be realized using single material. results go beyond conventional OECT potential OECTs exhibit dynamically configurable functionalities electronics.

Language: Английский

Vertical organic electrochemical transistors for complementary circuits DOI Creative Commons
Wei Huang, Jianhua Chen, Yao Yao

et al.

Nature, Journal Year: 2023, Volume and Issue: 613(7944), P. 496 - 502

Published: Jan. 18, 2023

Abstract Organic electrochemical transistors (OECTs) and OECT-based circuitry offer great potential in bioelectronics, wearable electronics artificial neuromorphic because of their exceptionally low driving voltages (<1 V), power consumption µW), high transconductances (>10 mS) biocompatibility 1–5 . However, the successful realization critical complementary logic OECTs is currently limited by temporal and/or operational instability, slow redox processes switching, incompatibility with high-density monolithic integration inferior n-type OECT performance 6–8 Here we demonstrate p- vertical balanced ultra-high blending redox-active semiconducting polymers a redox-inactive photocurable photopatternable polymer to form an ion-permeable channel, implemented simple, scalable architecture that has dense, impermeable top contact. Footprint current densities exceeding 1 kA cm −2 at less than ±0.7 V, 0.2–0.4 S, short transient times ms ultra-stable switching (>50,000 cycles) are achieved in, our knowledge, first vertically stacked circuits. This opens many possibilities for fundamental studies organic semiconductor chemistry physics nanoscopically confined spaces, without macroscopic electrolyte contact, as well implantable device applications.

Language: Английский

Citations

215
Flexible Organic Transistors for Biosensing: Devices and Applications DOI Creative Commons
Jiajun Song, Hong Liu, Zeyu Zhao

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: unknown

Published: Feb. 28, 2023

Abstract Flexible and stretchable biosensors can offer seamless conformable biological–electronic interfaces for continuously acquiring high‐fidelity signals, permitting numerous emerging applications. Organic thin film transistors (OTFTs) are ideal transducers flexible biosensing due to their soft nature, inherent amplification function, biocompatibility, ease of functionalization, low cost, device diversity. In consideration the rapid advances in flexible‐OTFT‐based broad applications, herein, a timely comprehensive review is provided. It starts with detailed introduction features various OTFTs including organic field‐effect electrochemical transistors, functionalization strategies biosensing, highlight on seminal work up‐to‐date achievements. Then, applications wearable, implantable, portable electronics, as well neuromorphic biointerfaces detailed. Subsequently, special attention paid planar fibrous devices. The routes impart stretchability, structural engineering material engineering, discussed, implementations e‐skin smart textiles included. Finally, remaining challenges future opportunities this field summarized.

Language: Английский

Citations

96
Switching p-type to high-performance n-type organic electrochemical transistors via doped state engineering DOI Creative Commons
Peiyun Li, Junwei Shi, Yuqiu Lei

et al.

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: Oct. 10, 2022

High-performance n-type organic electrochemical transistors (OECTs) are essential for logic circuits and sensors. However, the performances of OECTs lag far behind that p-type ones. Conventional wisdom posits LUMO energy level dictates performance. Herein, we show engineering doped state is more critical OECT polymers. By balancing charges to donor moiety, could effectively switch a polymer high-performance material. Based on this concept, polymer, P(gTDPP2FT), exhibits record high performance with μC* 54.8 F cm-1 V-1 s-1, mobility 0.35 cm2 response speed τon/τoff = 1.75/0.15 ms. Calculations comparison studies conversion primarily due uniform charges, stabilized negative polaron, enhanced conformation, backbone planarity at negatively charged states. Our work highlights role understanding polymers'

Language: Английский

Citations

79
Efficient and air-stable n-type doping in organic semiconductors DOI
Dafei Yuan,

Wuyue Liu,

Xiaozhang Zhu

et al.

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(11), P. 3842 - 3872

Published: Jan. 1, 2023

In this review, the key factors that determined air stability and doping efficiency of n-type doped organic semiconductors were summarized, together with discussion their applications in electronics.

Language: Английский

Citations

67
Organic mixed conductors for electrochemical transistors DOI Creative Commons
Joshua Tropp, Dilara Meli, Jonathan Rivnay

et al.

Matter, Journal Year: 2023, Volume and Issue: 6(10), P. 3132 - 3164

Published: May 24, 2023

Language: Английский

Citations

51
Designing organic mixed conductors for electrochemical transistor applications DOI
Yazhou Wang, Shofarul Wustoni, Jokūbas Surgailis

et al.

Nature Reviews Materials, Journal Year: 2024, Volume and Issue: 9(4), P. 249 - 265

Published: Feb. 29, 2024

Language: Английский

Citations

49
Acceptor Functionalization via Green Chemistry Enables High‐Performance n‐Type Organic Electrochemical Transistors for Biosensing, Memory Applications DOI
Yazhou Wang, Anil Koklu, Yizhou Zhong

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(15)

Published: July 27, 2023

Abstract The organic electrochemical transistor (OECT) is one of the most versatile building blocks within bioelectronics device toolbox. While p‐type semiconductors have progressed as OECT channel materials, only a few n‐type been reported, precluding development advanced sensor‐integrated OECT‐based complementary circuits. Herein, green aldol polymerization uses to synthesize lactone‐based conjugated polymers. Fluorination acceptor endows fully locked backbone with low‐lying lowest unoccupied molecular orbital, facilitating efficient ionic‐to‐electronic charge coupling. resulting polymer has record‐high performance high product mobility and capacitance ( µC * = 108 F cm −1 V s ), excellent (0.912 2 low threshold voltage (0.02 V), fast switching speed τ ON , OFF 336 µs,108 µs). This work demonstrates two types architectures applications enabled by this OECT, i.e., an artificial synapse amplifier for detecting α‐synuclein, potential biomarker Parkinson's disease. study shows that materials enable gain OECTs can be developed via route, diverse form factors these devices take promise exploration other application areas.

Language: Английский

Citations

45
π‐Conjugated Polymers for High‐Performance Organic Electrochemical Transistors: Molecular Design Strategies, Applications and Perspectives DOI Open Access

Zhicai Chen,

Xinliang Ding, Junwei Wang

et al.

Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 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

Language: Английский

Citations

3
The Rising of Flexible Organic Electrochemical Transistors in Sensors and Intelligent Circuits DOI

Zihan Zhu,

Yuncong Pang, Yang Li

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 20, 2025

Flexible electronic devices in biomedicine, environmental monitoring, and brain-like computing have garnered significant attention. Among these, organic electrochemical transistors (OECTs) been spotlighted flexible sensors neuromorphic circuits for their low power consumption, high signal amplification, excellent biocompatibility, chemical stability, stretchability, flexibility. However, OECTs will also face some challenges on the way to commercialized applications, including need improved long-term enhanced performance of N-type materials, integration with existing technologies, cost-effective manufacturing processes. This review presents device physics detail, evaluation various properties introduction different configurations aforementioned OECTs. Subsequently, components this roles are explained depth, main ways design fabricate summarized. Following this, we summarize analyze principles applications electrophysiological sensing, biosensing, sensor arrays. In addition, concepts OECT-based digital presented. Finally, paper summarizes opportunities electronics.

Language: Английский

Citations

2
Organic Thermoelectric Materials: Niche Harvester of Thermal Energy DOI

Longhui Deng,

Yan-Rui Liu, Yingyao Zhang

et al.

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 33(3)

Published: Nov. 23, 2022

Abstract Organic thermoelectric (OTE) materials promise convenient energy conversion between heat gradients and voltage with flexible wearable power‐supplying devices at a low price. Although variety of OTE are investigated, the TE performance is still far from practical application. To achieve high performance, thorough understanding structure–property relationship in necessary. In this comprehensive review, fundamentals OTEs summarized, recent achievements reviewed, structure properties high‐performance discussed. Furthermore, how molecular backbones, side chains, levels, packing, heteroatom effect all play vital roles addressed. Finally, future direction research on envisaged.

Language: Английский

Citations

68