Proton-penetrable Nafion-induced phase separation in organic semiconductors for high-performance organic electrochemical transistors

Zhang, Linrong; Khayour, Soukaina; Ren, Guozhang; He, Shunhao; Wang, Junjie; Yu, Liuyingzi; Song, Yuehua; Zhu, Chengcheng; Kang, Xin; Gong, Zhongyan; Gao, Kun; Wang, Jin; Sheng, Huixiang; Lü, Gang; Yu, Hai‐Dong

doi:10.1039/d3tc01194a

Cited by 4 publications

(2 citation statements)

References 55 publications

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“…In the electrolyte, GOx oxidizes glucose to gluconolactone (GDL) and produces the intermediate product, H 2 O 2 molecules (Equation (1)). The generated H 2 O 2 molecules are further oxidized to protons and electrons under the catalysis of Fc (Equation (2)) [ 37 ].

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Section: Resultsmentioning

confidence: 99%

Breathable and Stretchable Organic Electrochemical Transistors with Laminated Porous Structures for Glucose Sensing

Guo

Liu

Peng

et al. 2023

Sensors

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Dynamic glucose monitoring is important to reduce the risk of metabolic diseases such as diabetes. Wearable biosensors based on organic electrochemical transistors (OECTs) have been developed due to their excellent signal amplification capabilities and biocompatibility. However, traditional wearable biosensors are fabricated on flat substrates with limited gas permeability, resulting in the inefficient evaporation of sweat, reduced wear comfort, and increased risk of inflammation. Here, we proposed breathable OECT-based glucose sensors by designing a porous structure to realize optimal breathable and stretchable properties. The gas permeability of the device and the relationship between electrical properties under different tensile strains were carefully investigated. The OECTs exhibit exceptional electrical properties (gm ~1.51 mS and Ion ~0.37 mA) and can retain up to about 44% of their initial performance even at 30% stretching. Furthermore, obvious responses to glucose have been demonstrated in a wide range of concentrations (10−7–10−4 M) even under 30% strain, where the normalized response to 10−4 M is 26% and 21% for the pristine sensor and under 30% strain, respectively. This work offers a new strategy for developing advanced breathable and wearable bioelectronics.

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…”

Section: Resultsmentioning

confidence: 99%

Breathable and Stretchable Organic Electrochemical Transistors with Laminated Porous Structures for Glucose Sensing

Guo

Liu

Peng

et al. 2023

Sensors

View full text Add to dashboard Cite

show abstract

“…An OECT with high transconductance generally possesses a relatively high sensitivity in sensing applications. 5,6 Another key parameter for OECTs is the response time, and a short response usually means a fast chemical sensing and a high sensitivity. 7 Therefore, it is necessary to develop novel OECTs with high transconductance and short response time simultaneously.…”

Section: Introductionmentioning

confidence: 99%

A high-performance organic electrochemical transistor based on foam-structured channels prepared using a template washing-off method

Xiang

Wang

et al. 2023

J. Mater. Chem. C

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

Jo,

Jeong,

Moon

et al. 2023

Advanced Materials

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For optimizing steady‐state performance in organic electrochemical transistors (OECTs), both molecular design and structural alignment approaches must work in tandem to minimize energetic and microstructural disorders in polymeric mixed ionic–electronic conductor films. Herein, a series of poly(diketopyrrolopyrrole)s bearing various lengths of aliphatic–glycol hybrid side chains (PDPP‐mEG; m = 2–5) is developed to achieve high‐performance p‐type OECTs. PDPP‐4EG polymer with the optimized length of side chains exhibits excellent crystallinity owing to enhanced lamellar and backbone interactions. Furthermore, the improved structural ordering in PDPP‐4EG films significantly decreases trap state density and energetic disorder. Consequently, PDPP‐4EG‐based OECT devices produce a mobility–volumetric capacitance product ([µC*]) of 702 F V−1 cm−1 s−1 and a hole mobility of 6.49 ± 0.60 cm2 V−1 s−1. Finally, for achieving the optimal structural ordering along the OECT channel direction, a floating film transfer method is employed to reinforce the unidirectional orientation of polymer chains, leading to a substantially increased figure‐of‐merit [µC*] to over 800 F V−1 cm−1 s−1. The research demonstrates the importance of side chain engineering of polymeric mixed ionic–electronic conductors in conjunction with their anisotropic microstructural optimization to maximize OECT characteristics.

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Proton-penetrable Nafion-induced phase separation in organic semiconductors for high-performance organic electrochemical transistors

Abstract: Organic electrochemical transistors (OECTs) are promising for highly sensitive chemical and biological detections, because of the signal amplification, low operating voltage, solution compatibility, and high biocompatibility. However, OECTs, particularly the...

Cited by 4 publications

References 55 publications

Breathable and Stretchable Organic Electrochemical Transistors with Laminated Porous Structures for Glucose Sensing

Breathable and Stretchable Organic Electrochemical Transistors with Laminated Porous Structures for Glucose Sensing

A high-performance organic electrochemical transistor based on foam-structured channels prepared using a template washing-off method

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

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