A5101415491- Organic Electronics and Photovoltaics
- Liquid Crystal Research Advancements
- Thin-Film Transistor Technologies
- Conducting polymers and applications
- Ferroelectric and Piezoelectric Materials
- Perovskite Materials and Applications
- Photochemistry and Electron Transfer Studies
- Multiferroics and related materials
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Nanomaterials and Printing Technologies
- Organic and Molecular Conductors Research
- Advanced Memory and Neural Computing
- Photochromic and Fluorescence Chemistry
- Luminescence and Fluorescent Materials
- Acoustic Wave Resonator Technologies
- Semiconductor materials and devices
- Porphyrin and Phthalocyanine Chemistry
- Advanced Sensor and Energy Harvesting Materials
- Marine Biology and Environmental Chemistry
- Organic Light-Emitting Diodes Research
- Rocket and propulsion systems research
- Quantum Dots Synthesis And Properties
- Advancements in Semiconductor Devices and Circuit Design
- Ferroelectric and Negative Capacitance Devices
Qufu Normal University
2021-2024
Sun Yat-sen University
2017-2020
Key Laboratory of Guangdong Province
2020
Tokyo Institute of Technology
2015-2016
Beijing Institute of Graphic Communication
2013
Guangxi University
2012
An ultrastretchable thermistor that combines intrinsic stretchability, thermal sensitivity, transparency, and self-healing capability is fabricated. It found the polyacrylamide/carrageenan double network (DN) hydrogel highly sensitive to temperature therefore can be exploited as a novel channel material for thermistor. This stretched from 0 330% strain with sensitivity high 2.6%/°C at extreme 200% strain. Noticeably, mechanical, electrical, sensing properties of DN self-healed, analogous...
The generalized Einstein relation (GER) can unify various theoretical models and predict charge transport in OSCs with crystallinities, by altering the variance of density states delocalization degree a Gaussian-distributed states.
Abstract Many advanced materials have been developed for organic field‐effect transistors (OFETs) or thin‐film (TFTs) based on and hybrid materials. However, although many new OFETs exhibit superior characteristic parameters (such as high mobility), most of them show nonideal performances that strongly limited progress in the design molecules, understanding transport mechanisms, circuit applications OFETs. In this review, device physics ideal is discussed first to understand factors limit...
Improvements in the light-harvesting capacity and carrier extraction are both significant to improve photovoltaic performance of perovskite solar cells (PSCs). It has been proved that local surface plasmon resonance (LSPR) based on metallic nanostructures is practical for capturing light enhance harvesting. Motivated by this, a special shaped Au nanoparticle, e.g., nanooctahedrons (Au NOs), with broadband LSPR peak suitable size controlled synthesized applied PSCs device. The power...
Unidirectional dewetting enables the production of large-area thin films with high efficiency at low cost. Herein, we report homogeneous unidirectional on microdroplet arrays via gravity-induced deformation in droplets combined alternating lyophilic/lyophobic patterns. This process allows scaled-up deposition films, including organic semiconductors and transition metal oxides, through autogenous shrinkage droplets, which further fabrication thin-film transistor (OTFT) arrays. The resulting...
We developed a facile method for fabricating large-area, two-dimensional (2D), organic, highly crystalline films and extended it to organic thin-film transistor arrays. Tilted spinning provided oriented flow at the three-phase contact line, 2D film that consisted of layer-by-layer stacked 2,7-diocty[1]benzothieno[3,2-b]benzothiophene (C8-BTBT) was obtained facilely transistors (OTFTs). The extracted field-effect mobility is 4.6 cm2 V–1 s–1, but with nonideal features. By applying this...
A series of dibenzocoronene tetracarboxdiimide derivatives decorated with alkyl swallow-tail and alkoxy moieties were synthesized, their structures characterized. 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) as an effective oxidant was first used in the benzannulation perylene diimides almost quantitative yield. The thermotropic behavior investigated using differential scanning calorimetry (DSC) polarization optical microscopy (POM). introduction substituents facilitates liquid...
Double perovskites without lead element have attracted great attention in recent years. Further increasing the photoluminescence quantum yield of lead-free double is necessary for their potential applications. In this work, Na+ doped Cs2SnI6 nanocrystals were synthesized by hot injection method. It was displayed that all NCs uniform hexagonal shape with good crystallization. Energy dispersing spectroscopy and X-ray photoelectron proves ions lattice perovskite structure. The intensity...
Thin-film transistors (TFTs) and field-effect (FETs) are basic units to build functional electronic circuits investigate transport physics. In conventional TFTs or FETs, performance in terms of current level, on-off ratio, the sensitivity detection is limited by homogeneous semiconducting layers. this paper, we develop with submicron heterostructures using a strategy based on near-field photolithography. We use an array total-reflective polydimethylsiloxane pyramids trenches as soft...
As devices with plasticity similar to biological synapses, photovoltaic memristors based on the bulk effect exhibit impressive abilities for autonomous learning and memory.
A series of novel calamatic liquid crystals based on a polar benzo[c]cinnoline moiety were efficiently prepared through facile route. Rich smectic mesophases induced by the monoalkylated and dialkylated molecular design, including highly ordered in rectangular hexagonal orders. Dialkylated phenylbenzocinnoline derivatives showed very wide temperature range over 150°C for C (SmC) phase, while ones only presented low-ordered mesophases, which exhibited bilayer structure crystalline phase. From...
Biobased shape-memory polymers with high strain and full recoverability have huge potential in biomedical applications.
Abstract High-quality epitaxial BiFeO 3 (BFO) films were grown on (001)-, (110)- and (111)-oriented Nb:SrTiO (NSTO) substrates by pulsed laser deposition. The type of domain structure can be modulated using BFO ferroelectric with different crystalline orientations. ON/OFF ratios obtained in Au/BFO/NSTO tunnel junctions (FTJs) are 6 × 10 , 4 2 5 respectively. Analysis the I – V curves tunnelling current average barrier height proves that polarization intensity modulates both Schottky profile,...
In this paper, we demonstrate an intensity-tunable THz bandpass filter by introducing liquid crystal (LC) integrated with asymmetric frequency selective surface (FSS) and subwavelength metal gratings. Here, the tunable is derived from inner polarization state conversion in composited devices, incident linear can be converted into 90° orthogonal components. By controlling LC orientation under applied electric field metamaterial electrodes, process actively modulated; thus,...
A series of asymmetric organic semiconductors based on N-shaped dibenzo[a,h]anthracene (DBA), Ph-DBA-Cn (n = 8, 10, 12), were developed. All compounds had good chemical stability and smectic LC qualities, thermally stable crystal phase can be maintained under 190 °C due to the suppressed molecular motions by bent DBA core. High-quality crystalline films fabricated using a blade-coating technique. It was revealed that average mobility all thin-film transistors (OTFTs) estimated over 2.8 cm2...
The crystallization of organic or perovskite semiconductors reflects the intermolecular interactions and crucially determines charge transport in opto-electronic devices. In this report, we demonstrate investigate use an ultrasonicated dispenser to guide formation crystals semiconductors. moving speed affects match between concentration gradient evaporation rate near three-phase contact lines thus generation various morphologies. mechanism is given by a relationship calculated profile degree...
The rapid sintering of printable metal nanoparticle inks is vital for the industrial mass production electronic devices. In this paper, we report a laser annealing method printed Ag nanoparticle-based inks. We also fabricate circuits and organic thin-film transistors (OTFTs) on flexible plastic substrates through spontaneous patterning under deep ultraviolet (DUV) exposure. Compared to conventional thermal annealing, significantly reduces processing time from 3600 10 s while preventing...
A comprehensive study on the self-organised mesomorphism and charge-transport properties of three n-type liquid crystalline (LC) dibenzocoronene tetracarboxdiimide derivatives (Dibenzo-CDI 1, 2, 3) bearing branched alkyl chains with varied side-chain length branching point (α or β site) has been carried out. All Dibenzo-CDI compounds possessed high solubility in common organic solvents low-lying lowest unoccupied molecular orbital energy levels below −4.0 eV indicating their air-stable...
Measuring the mobility of thin-film transistors fabricated using newly developed semiconductors is difficult because various factors, such as contact resistance. In this work, generalized gated four-probe and van der Pauw structure were combined to precisely measure carrier semiconductors. The method geometry-independent, suitable for gate-dependent in all operation regimes, test devices could be easily fabricated. Experimental verifications performed on specially designed InGaZnO with...
Novel calamitic liquid crystals having an electron-deficient isoquino[8,7-h]isoquinoline moiety as a core, 2,8-didecylisoquino[8,7-h]isoquinoline (10-IQIQ-10) and 2,8-didodecylisoquino[8,7-h]isoquinoline (12-IQIQ-12), were prepared, their phase transition behaviors, HOMO LUMO levels, charge carrier transport properties investigated. 12-IQIQ-12 showed highly ordered smectic H at around 140 to 150 °C low-lying level of −3.33 eV. Time-of-flight measurements revealed field-independent ambipolar...
Here, two alkylated dibenzo[ a , h ]anthracene (DBA) derivatives with linear n -dodecyl (C12-DBA-C12) and ring-containing pentyl-cyclohexyl (Cy5-DBA-Cy5) moieties were successfully synthesized.
Abstract In this study, a novel n-channel 11,11,12,12-tetracyanonaphtho-2,6-quinodimethane-based organic semiconductor C8-DBTNAP was synthesized. had good solubility and low-lying lowest unoccupied molecular orbital level (−4.41 eV). The thin-film formability of made it produce continuous, strip-shaped uniform crystalline films. transistors demonstrated high electron mobility up to 0.4 cm2/Vs under air conditions. These findings revealed that DBTNAP skeleton can be expected as potential...