Impact of Planar and Vertical Organic Field‐Effect Transistors on Flexible Electronics (Adv. Mater. 11/2023)

Nawaz, Ali; Merces, Leandro; Ferro, Letícia M. M.; Sonar, Prashant; Bufon, Carlos César Bof

doi:10.1002/adma.202370077

Cited by 15 publications

(19 citation statements)

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“…Another effective way to improve the planarity of the molecular core is to extend the π‐conjugation length of the molecular backbones. [ 33 ] The central core π‐conjugation extension of the molecule favors higher planarity of the compound and increases intermolecular π–π stacking. Meanwhile, the charge transfer from the electron‐rich unit to the electron‐deficient unit is promoted, and the electron coupling between the components is improved, thereby exhibiting high electron mobility.…”

Section: Structure Modification Strategy Of Small‐molecule Semiconduc...mentioning

confidence: 99%

Recent Research Progress of Organic Small‐Molecule Semiconductors with High Electron Mobilities

et al. 2023

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Organic electronics has made great progress in the past decades, which is inseparable from the innovative development of organic electronic devices and the diversity of organic semiconductor materials. It is worth mentioning that both of these great advances are inextricably linked to the development of organic high‐performance semiconductor materials, especially the representative n‐type organic small‐molecule semiconductor materials with high electron mobilities. The n‐type organic small molecules have the advantages of simple synthesis process, strong intermolecular stacking, tunable molecular structure, and easy to functionalize structures. Furthermore, the n‐type semiconductor is a remarkable and important component for constructing complementary logic circuits and p‐n heterojunction structures. Therefore, n‐type organic semiconductors play an extremely important role in the field of organic electronic materials and are the basis for the industrialization of organic electronic functional devices. This review focuses on the modification strategies of organic small molecules with high electron mobility at molecular level, and discusses in detail the applications of n‐type small‐molecule semiconductor materials with high mobility in organic field‐effect transistors, organic light‐emitting transistors, organic photodetectors, and gas sensors.

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Section: Structure Modification Strategy Of Small‐molecule Semiconduc...mentioning

confidence: 99%

Recent Research Progress of Organic Small‐Molecule Semiconductors with High Electron Mobilities

et al. 2023

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“…The developments of flexible electronics based on complementary metal oxide semiconductors (CMOS) have accelerated the arrival of Internet of Thing era in recent years. [ 1 ] Flexible CMOS circuits are widely applied in healthcare, [ 2,3 ] human/machine interfaces, [ 4,5 ] and wearable electronics. [ 6–8 ] In these applications, flexible CMOS circuits are highly expected to possess high flexibility, high‐density integration, and high electrical performance to implement complex functions.…”

Section: Introductionmentioning

confidence: 99%

Ultra‐Flexible Monolithic 3D Complementary Metal‐Oxide‐Semiconductor Electronics

Zhang,

Wang,

Zhu

et al. 2023

Adv Funct Materials

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Flexible electronics based on complementary metal‐oxide‐semiconductor (CMOS) technology have enabled a smart soft world. However, the trade‐off among flexibility, density, and electrical performance has been a long‐lasting unresolved issue. Here, a monolithic three‐dimensional (M3D) CMOS design is proposed to address this problem and realize ultra‐flexible electronics with high electronic‐performance and integration. This design utilizes vertically stacked p‐type carbon nanotube transistors and n‐type indium gallium zinc oxide ones, which share common gates and drains, saving the inter tier vias required in the traditional M3D structure to reduce routing and improve flexibility. With this design, CMOS logic gates, multi‐stage circuits, ring oscillators (ROs) and memory modules, are demonstrated. This design enables circuits to save up to 45% of area compared with their planar counterparts. Particularly, inverters exhibit a record‐high gain of 191, and 55‐stage ROs can operate well even after bending at a 500‐µm radius for 50 cycles, exhibiting the highest flexibility among the reported ones. The ultra‐flexible and high‐integration RO enables a wearable light recorder to collect harmful blue light shining into human eyes by simply attaching the circuits on a contact lens. This integration method provides possibilities for developing complex‐function wearable electronics.

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“…Microsystems have shrunk to the submillimeter regime, advancing the development of implantable technology, smart dust, and small autonomous systems. [ 1–3 ] At the submillimeter scale, energy storage that enables autonomous operation has emerged as a crucial limitation. [ 4 ] The challenges are manifold.…”

Section: Introductionmentioning

confidence: 99%

A Dual‐Function Micro‐Swiss‐Roll Device: High‐Power Supercapacitor and Biomolecule Probe

Ferro

Merces

Hong-mei

et al. 2023

Adv Materials Technologies

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Tiny autonomous systems less than 1 mm across need small energy storage to satisfy the demand for temporary pulse power and consistent power supply. A battery or supercapacitor alone cannot meet both requirements. Integration of battery and supercapacitor is an alternative, but it introduces a device (supercapacitor) that is not frequently invoked but requires substantial space. Herein, a submillimeter (0.42 mm2) high‐power supercapacitor with an additional function, namely, an on‐chip integrated probe for biomolecule detection is created. The dual‐function device is directly used in the liquid electrolyte, and its Swiss‐roll geometry allows for operation in a minimum 12‐nL electrolyte. The micro‐Swiss‐roll supercapacitor delivers a power density of 911 mW cm−2 and displays a 98% capacitance retention over 10 000 cycles. The biomolecule probe achieves a sensitivity of 230–262 µA mm−1 with a limit of detection of 0.4–0.5 × 10−3 m for the proof‐of‐concept target, the neurotransmitter dopamine. The biomolecule probe achieves a 230–262 µA mm−1 sensitivity with a limit of detection of 0.4–0.5 × 10−3 m for the proof‐of‐concept target, the neurotransmitter dopamine, along with selectivity in the presence of ascorbic acid. The independent dual function provides a promising route toward the full‐time use of dust‐sized supercapacitors integrated into submillimeter functional systems.

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Impact of Planar and Vertical Organic Field‐Effect Transistors on Flexible Electronics (Adv. Mater. 11/2023)

Cited by 15 publications

References 0 publications

Recent Research Progress of Organic Small‐Molecule Semiconductors with High Electron Mobilities

Recent Research Progress of Organic Small‐Molecule Semiconductors with High Electron Mobilities

Ultra‐Flexible Monolithic 3D Complementary Metal‐Oxide‐Semiconductor Electronics

A Dual‐Function Micro‐Swiss‐Roll Device: High‐Power Supercapacitor and Biomolecule Probe

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