Triboelectric Potential Powered High-Performance Organic Transistor Array

Abstract

Triboelectric potential gated transistors have inspired various applications toward mechanical behavior controlled logic circuits, multifunctional sensors, artificial sensory neurons, etc. Their rapid development urgently calls for high-performance devices and corresponding figure of merits to standardize the tribotronic gating properties. Organic semiconductors paired with solution processability promise low-cost manufacture of high-performance tribotronic transistor devices/arrays. Here, we demonstrate a record high-performance tribotronic transistor array composed of an integrated triboelectric nanogenerator (TENG) and a large-area device array of C8-BTBT-PS transistors. The working mechanism of effective triboelectric potential gating is elaborately explained from the aspect of conjugated energy bands of the contact-electrification mediums and organic semiconductors. Driven by the triboelectric potential, the tribotronic transistor shows superior properties of record high current on/off ratios (>108), a steep subthreshold swing (29.89 μm/dec), high stability, and excellent reproducibility. Moreover, tribotronic logic devices modulated by mechanical displacement have also been demonstrated with good stability and a high gain of 1260 V/mm. The demonstrated large-area tribotronic transistor array of organic semiconductor exhibits record high performance and offers an effective R&D platform for mechano-driven electronic terminals, interactive intelligent system, artificial robotic skin, etc.

Tribo‐ferro‐optoelectronic neuromorphic transistor of α‐In2Se3

“…Moreover, the time‐varying electric field (i.e., triboelectric potential) induced during the contact‐separation action of the TENG can couple well with various three‐terminal semiconductor devices (i.e., tribotronics and triboiontronics) [34,35] . Tribotronic devices have been reported to have diverse applications including pressure/distance sensing, [36,37] non‐volatile storage, [38] neuromorphic computing, [39,40] and logic circuits [41,42] . By directly modulating the electrical performances of the device with a mechanical action, [34] the input of tactile and visual stimuli can be effectively integrated, providing a convenient and feasible method for simulating heterosynaptic plasticity [43] and multimodal neuromorphic computation.…”

“…[34,35] Tribotronic devices have been reported to have diverse applications including pressure/distance sensing, [36,37] non-volatile storage, [38] neuromorphic computing, [39,40] and logic circuits. [41,42] By directly modulating the electrical performances of the device with a mechanical action, [34] the input of tactile and visual stimuli can be effectively integrated, providing a convenient and feasible method for simulating heterosynaptic plasticity [43] and multimodal neuromorphic computation.…”

Self‐Powered Embedded‐Sensory Adjustment for Flow Batteries

“…[ 11–14 ] Relying on the working mechanism of TENG, the developed triboelectric sensors have exhibited great significance in the sensing area including but not limited to multifunctional sensors, [ 15–17 ] human‐machine interaction, [ 18,19 ] energy‐autonomous modules, [ 20 ] mechanologics, [ 21 ] and interactive neuromorphic devices. [ 22–26 ] Notably, based on the advantages of no power consumption, structural versatility, and facile designability, triboelectric sensors are ready to be fabricated on demand and distributed to the designated positions, which may exhibit more preferential priorities and application prospects for intelligent industry.…”

Organic Charge‐Transfer Complex based Microstructure Interfaces for Solution‐Processable Organic Thin‐Film Transistors toward Multifunctional Sensing

“…[1] Various sensors that transduce external stimuli (i.e., heat, pressure, light, humidity, and gas) into electric or other signals are developed for high sensitivity realization. In particular, pressure sensors mainly originate from the detecting mechanism of piezoelectricity, [2] triboelectricity, [3] piezoresistivity, [4] or capacitance change [5] to the tactile, depending on the active layer. A two-terminal or single-electrode nanogenerator usually generates repeated on-time charge flow and potential changes induced by externally applied forces on the basis DOI: 10.1002/aelm.202300205 of a piezoresistive or triboelectric response; herein, the electric signals can be quickly evaluated using the green self-powered mode.…”