Synaptic transistors stimulated by light waves or photons may offer advantages to the devices, such as wide bandwidth, ultrafast signal transmission, and robustness. However, previously reported light-stimulated synaptic devices generally require special photoelectric properties from semiconductors sophisticated device's architectures. In this work, a simple effective strategy for fabricating is provided utilizing interface charge trapping effect of organic field-effect (OFETs)....

Application of degradable organic electronics based on biomaterials, such as polylactic-co-glycolic acid and polylactide (PLA), is severely limited by their low thermal stability. Here, a highly thermally stable transistor demonstrated applying three-arm stereocomplex PLA (tascPLA) dielectric substrate materials. The resulting flexible transistors are up to 200 °C, while devices traditional damaged at 100 °C. Furthermore, charge- trapping effect induced polar groups the also utilized...

Abstract All‐inorganic lead halide perovskite quantum dots (IHP QDs) have great potentials in photodetectors. However, the photoresponsivity is limited by low charge transport efficiency of IHP QD layers. High‐performance phototransistors based on QDs hybridized with organic semiconductors (OSCs) are developed. The smooth surface layers ensures ordered packing OSC molecules above them. OSCs significantly improve transportation photoexcited charges, and gate effect transistor structure...

Abstract Biodegradability, low-voltage operation, and flexibility are important trends for the future organic electronics. High-capacitance dielectrics essential field-effect transistors. Here we report application of environmental-friendly cellulose nanopapers as high-capacitance with intrinsic ionic conductivity. Different previously reported liquid/electrolyte-gated dielectrics, can be applied all-solid without any liquid or gel. Organic transistors fabricated nanopaper exhibit good...

The thin‐film structures of chemical sensors based on conventional organic field‐effect transistors (OFETs) can limit the sensitivity devices toward vapors, because charge carriers in OFETs are usually concentrated within a few molecular layers at bottom semiconductor (OSC) film near dielectric/semiconductor interface. Chemical vapor molecules have to diffuse through OSC films before they interact with OFET conduction channel. It has been demonstrated that ammonia porous be fabricated by...

Flexible organic phototransistors are fabricated using polylactide (PLA), a polar bio­material, as the dielectric material. The charge trapping effect induced by groups of PLA layer leads to photosensitivity close ≈104. excellent performance this new device design is further demonstrated incorporating photo­transistors into sensor array successfully image star pattern. has been generally considered pitfall for electronics. However, we demonstrate that can be subtly applied enhance (OPTs)....

CH3NH3PbI3 perovskite-based optoelectronics have attracted intense research interests recently because of their easy fabrication process and high power conversion efficiency. Herein, we report a novel photodetector based on unique perovskite films with island-structured morphology. The light-induced electronic properties the photodetectors were investigated compared to those devices conventional compact films. exhibited rapid response speed (<50 ms), good stability at temperature up 100 °C,...

Printable and flexible organic phototransistors (OPTs) make comprehensive requirements for the semiconductors (OSCs), including high photosensitivity, decent transistor characteristics, appropriate solution viscosity, good film flexibility. It has been challenging to obtain such semiconductors. Here, we demonstrated that by taking advantage of interfacial charge effect, printable OPTs with performance can be successfully fabricated through simply blending common OSCs polymers. Using...

In order to imitate brain-inspired biological information processing systems, various neuromorphic computing devices have been proposed, most of which were prepared on rigid substrates and energy consumption levels several orders magnitude higher than those synapses (∼10 fJ per spike). Herein, a new type wearable organic ferroelectric artificial synapse is has two modulation modes (optical electrical modulation). Because the high photosensitivity semiconductors ultrafast polarization...

Abstract Polymer dielectrics in organic field‐effect transistors (OFETs) are essential to provide the devices with overall flexibility, stretchability, and printability simultaneously introduce charge interaction on interface semiconductors (OSCs). The interfacial effect between various polymer OSCs significantly intricately influences device performance. However, understanding of this is limited because buried difficult stimulate characterize. Here, challenge overcome by utilizing...

The outstanding performances of nanostructured all-inorganic CsPbX3 (X = I, Br, Cl) perovskites in optoelectronic applications can be attributed to their unique combination a suitable bandgap, high absorption coefficient, and long carrier lifetime, which are desirable for photodetectors. However, the photosensing CsPbI3 nanomaterials limited by low charge-transport efficiency. In this study, phototransistor with bilayer structure an organic semiconductor layer 2,7-dioctyl [1]...

Abstract Distinguishable detection of the ultraviolet, visible, and infrared spectrum is promising significant for super visual system artificial intelligences. However, it challenging to provide a photosensor with such broad spectral response ability. In this work, distinguished by developing serial photosensors based on perovskite/carbon nanotube hybrids. Oraganolead halide perovskites (CH 3 NH PbX ) possess remarkable optoelectronic properties tunable optical band gaps changing halogens,...

Flexible organic flash-like synaptic devices have been fabricated on a flexible substrate with the C8-BTBT as conducting channel.

Abstract The MoS 2 photodetector on different substrates stacked via van der Waals force has been explored extensively because of its great potential in optoelectronics. Here, we integrate multilayer monocrystalline SiC substrate though direct chemical vapor deposition. film shows high quality and thermal stability, which the full width at half-maximum first-order temperature coefficient for <m:math xmlns:m="http://www.w3.org/1998/Math/MathML"> <m:mrow> <m:msubsup> <m:mi>E</m:mi>...

Abstract Optoelectronic devices for light or spectral signal detection are desired use in a wide range of applications, including sensing, imaging, optical communications, and situ characterization. However, existing photodetectors indicate only intensities, whereas multiphotosensor spectrometers require at least chip-level assembly can generate redundant signals applications that do not need detailed information. Inspired by human visual psychological perceptions, the compression...

Electronic-Photonic integrated systems have attracted intensive attention in addressing the explosively increasing data-processing issue post-Moore era. However, tremendous size difference between basic electronic and photonic units poses challenges for further deep convergence of optoelectronic microprocessors. Here, we report a floating-gate transistor fabricated with complementary metal-oxide-semiconductor compatible technologies, which can realize multilevel photoelectric logic computing...

Organic materials with good biocompatibility and mechanical flexibility have great application potential in photonic neuromorphic computing. Here, the organic optoelectronic synapse for computing is fabricated on a flexible substrate. The excellent ferroelectricity of poly(vinylidene fluoride-trifluoroethylene) P(VDF-TrFE) endows device memory window larger than 18 V stable conductance modulation. photosensitive properties 2,7-dioctyl[1] benzothieno[3,2-b][1]benzothiophene (C8-BTBT) enable...