A5020799950- Organic Light-Emitting Diodes Research
- Luminescence and Fluorescent Materials
- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Lanthanide and Transition Metal Complexes
- Advanced Thermoelectric Materials and Devices
- Perovskite Materials and Applications
- Organometallic Complex Synthesis and Catalysis
- Molecular Junctions and Nanostructures
- Nanocluster Synthesis and Applications
- Advanced Sensor and Energy Harvesting Materials
- Nonlinear Optical Materials Studies
- Organoboron and organosilicon chemistry
- Catalytic Cross-Coupling Reactions
- Molecular Sensors and Ion Detection
- Supramolecular Self-Assembly in Materials
- MXene and MAX Phase Materials
- Polymer crystallization and properties
- Mass Spectrometry Techniques and Applications
- Advanced ceramic materials synthesis
- Aluminum Alloys Composites Properties
- Supramolecular Chemistry and Complexes
- Thin-Film Transistor Technologies
- Natural Fiber Reinforced Composites
- Transition Metal Oxide Nanomaterials
Xi'an Jiaotong University
2017-2025
University of Cambridge
2022-2023
China XD Group (China)
2018-2021
Chemical Synthesis Lab
2021
State Council of the People's Republic of China
2021
University of Chinese Academy of Sciences
2014-2019
Beijing National Laboratory for Molecular Sciences
2014-2017
Chinese Academy of Sciences
2014-2017
Institute of New Materials
2017
Institute of Chemistry
2014-2016
Flexible thin films of poly(nickel-ethylenetetrathiolate) prepared by an electrochemical method display promising n-type thermoelectric properties with the highest ZT value up to 0.3 at room temperature. Coexistence high electrical conductivity and Seebeck coefficient in this coordination polymer is attributed its degenerate narrow-bandgap semiconductor behavior.
A series of thiophene-diketopyrrolopyrrole-based quinoidal small molecules (TDPPQ-2-TDPPQ-5) bearing branched alkyl chains with different side-chain lengths and varied branching positions are synthesized. Field-effect transistor (FET) measurement combined thin-film characterization is utilized to systematically probe the influence length position on film microstructure, molecular packing, and, hence, charge-transport property. All these TDPPQ derivatives show air-stable n-channel...
Abstract Phosphorescent near‐infrared (NIR) organic light‐emitting devices (OLEDs) have drawn increasing attention for their promising applications in the fields such as photodynamic therapy and night‐vision readable displays. Here, three simple phosphorescent Pt(II) complexes are synthesized, intermolecular interactions investigated crystals neat films by X‐ray single crystal diffraction grazing‐incidence wide‐angle scattering, respectively. The photophysical properties, molecular...
Abstract Conducting polymers are of interest for a broad range applications from bioelectronics to thermoelectrics. The factors that govern their complex charge transport physics include the structural disorder present in these highly doped polymer films and Coulombic interactions between electronic carriers dopant counterions. Previous studies have shown at low doping levels strongly trapped vicinity counterions, while high is not limited by trapping, which manifests itself conductivity...
Abstract Highly efficient near‐infrared (NIR) emitters have significant applications in medical and optoelectronic fields, but the development stays a great challenge due to energy gap law. Here, we report two NIR phosphorescent Ir(III) complexes which display emission peaks around 730 nm with narrow full width at half maximum of only 43 nm. Therefore, pure luminescence can be obtained without having very long wavelength, thus alleviating restriction law, obtaining impressively high...
With 5,9-dioxa-13<italic>b</italic>-boranaphtho[3,2,1-<italic>de</italic>]anthracene (<bold>OBA</bold>) as the acceptor, thermally activated delayed fluorescence (TADF) emitters adopting an asymmetric configuration can achieve highly efficient blue-emitting OLEDs.
Cyclometalated Pt(II) complexes can show intense phosphorescence at room temperature. Their emission properties are determined by both the organic ligand and metal center. Whereas most of related studies focus on tuning designing different types ligands, only several reports investigate key role played To address this issue, phosphorescent with one, two, three centers designed synthesized. With more centers, cyclometalated multinuclear display red-shifted emissions increased...
Highly efficient deep-red organic light-emitting devices (OLEDs) are indispensable for developing high-performance red-green-blue (RGB) displays and white OLEDs (WOLEDs). However, the shortage of emitters with high photoluminescence quantum yields (PLQYs) balanced charge injection/transport abilities has severely restricted performance OLEDs. Herein, we design synthesize four by combining isoquinoline group thianthrene 5,5,10,10-tetraoxide group. Benefited from introduction group, these...
Synergism among heavy atom effect, enhanced n → π* transitions and magnified electron coupling to promote pure RTP emission.
Understanding the formation and recombination dynamics between excitons trions is critical for evaluating improving performance of two-dimensional material-based optoelectronic devices. Herein, we have investigated competitive luminescence processes intralayer in WS2/WSe2 heterostructures with different (0°, 30°, 60°) twisted angles. We observed increased photoluminescence (PL) ratio compared to angles 30° 60°. For a angle relatively large PL caused by high probability trion than that...
Abstract Aggregation‐induced emission (AIE)‐active phosphorescent emitters have intrinsic advantages in time‐gated imaging/sensing and improving the electroluminescent efficiencies of organic light‐emitting devices (OLEDs). However, compared with very prosperous fruitful developments AIE‐active fluorescent related working mechanisms, progresses on associated AIE mechanisms are still relatively slow. Herein, properties a series Pt(II) complexes two monodentate ligands reported. Compared...
A series of four-coordinated Pt<sup>II</sup>(C^N)(N-donor ligand)Cl-type complexes have been synthesized to show aggregation-induced phosphorescence emission (AIPE) behaviors and impressive OLED device efficiencies.
The organic light-emitting diode (OLED) has been regarded as the most prominent product in current market of electronics, which attracted growing attention because their applications full-color displays and solid-state lighting. Organic materials that exhibit strong luminescence solid state constitute core position OLED. Extensive research efforts to probe structure luminescent have considerable conjugated fusion ring architecture. This is it can confer molecular rigidity helps inhibit...
Most B-N multiple resonance (MR) induced thermally activated delayed fluorescence (TADF) emitters, due to their inherently rigid and planar molecular structures short-range charge-transfer characteristics, typically exhibit poor solubility low reverse intersystem crossing (RISC) rates, which are highly undesirable for high-performance solution-processible OLEDs. Herein, we developed a simple yet feasible approach fabricate three novel small-molecule MR-TADF emitters by connecting either one...
Abstract We report the synthesis, characterization, redox behavior, and n‐channel organic field‐effect (OFET) characteristics of a new class thieno[3,2‐b]thiophene‐diketopyrrolopyrrole‐based quinoidal small molecules 3 4 . Under ambient atmosphere, solution‐processed thin‐film transistors based on exhibit maximum electron mobilities up to 0.22 0.16 cm 2 V −1 s , respectively, with on‐off current ratios ( I / off ) more than 10 6 Cyclic voltammetry analysis showed that this derivatives...
A unipolar thermoelectric device of poly[K<sub>x</sub>(Ni-ethylenetetrathiolate)] was patterned <italic>via</italic> an electrochemical process on a prepatterned PET substrate with printed PDMS.
A new mechanism, namely radiative transition switch (RTS), has been proposed for aggregation-induced emission, which is of importance developing highly efficient AIE-active emitters.
<p>As linking unit, [2.2]paracyclophane (PCP) has been inserted in between electron-donating groups (<i>i.e.</i> carbazole and 10<i>H</i>-phenoxazine) electron-accepting triphenyl-1,3,5-triazine diphenylsulfone) to prepare a series of linear bipolar racemic near-ultraviolet (NUV) emitters owing the planar chirality associated with PCP. In toluene, PCP-based can show emission wavelength range 400-444 nm. Critically, very small Commission Internationale de...
A novel strategy is proposed to modulate emission colors of OLEDs without synthesizing different emitters or relying on molecular aggregation concentration effects, which theoretically enables achieve infinite colors.
We report the first single-bundle nanofiber based OFETs fabricated from a cyclic organogelator with high hole mobility and photoresponsivity.
Blue emitters with various electron-donors attached to the 9-phenyl-9-phosphafluorene oxide (PhFIOP) moiety and their thermally activated delayed fluorescence (TADF) behavior.
The present work demonstrates the thermoelectric properties of CuTCNQ, including nanocrystals and thin films containing nanorod arrays. CuTCNQ displayed n-type behaviors with a relatively high power up to −632.1 μV K<sup>−1</sup> at 370 K.