A5040515222- Organic Light-Emitting Diodes Research
- Organic Electronics and Photovoltaics
- Luminescence and Fluorescent Materials
- Conducting polymers and applications
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Perovskite Materials and Applications
- Thin-Film Transistor Technologies
- Quantum Dots Synthesis And Properties
- Advanced Sensor and Energy Harvesting Materials
- Lanthanide and Transition Metal Complexes
- Carbon and Quantum Dots Applications
- Nanocluster Synthesis and Applications
- Advanced Memory and Neural Computing
- Luminescence Properties of Advanced Materials
- Synthesis and properties of polymers
- ZnO doping and properties
- Silicone and Siloxane Chemistry
- Nanomaterials and Printing Technologies
- Synthesis and Properties of Aromatic Compounds
- 2D Materials and Applications
- Thermal Expansion and Ionic Conductivity
- Chalcogenide Semiconductor Thin Films
- Molecular Junctions and Nanostructures
- Green IT and Sustainability
Taiyuan University of Technology
2016-2025
Shanxi Electromechanical Design and Research Institute
2024
Guilin University of Technology
2021-2023
Interface (United States)
2013-2022
Hong Kong Baptist University
2017-2021
Shanxi Science and Technology Department
2017
Materials Science & Engineering
2013
Abstract By incorporating ultrathin (<0.1 nm) green, yellow, and red phosphorescence layers with different sequence arrangements in a blue fluorescence layer, four unique simplified fluorescence/phosphorescence (F/P) hybrid, white organic light-emitting diodes (WOLEDs) were obtained. All devices realize good warm light emission, high color rending index (CRI) of >80, low correlated temperature <3600 K, stability at wide voltage range 5 V–9 V. These hybrid WOLEDs also reveal...
S-CQDs were chosen as a light emitting layer by virtue of their structure characteristics, optical properties and film-forming ability to obtain CQD-LEDs.
Abstract Phosphorescent transition‐metal complexes have played the vital role in rapid development of organic light‐emitting diodes (OLEDs) as most promising candidates for next‐generation flat‐panel display and solid‐state lighting techniques. In this work, novel low‐cost phosphorescent neutral tetrahedral manganese(II) (DBFDPO‐MnX 2 , X = Br, or Cl) based on dibenzofuran‐based phosphine oxide derivative ligand are designed synthesized. The exhibit intense green phosphorescence with high...
Abstract Despite considerable interest, uniform and robust flexible transparent conducting electrodes (FTCEs) that can be seamlessly integrated used for highly efficient large‐area oganic light‐emitting diodes (OLEDs) remain elusive. In this study, a fabrication of high‐performance OLEDs by exploiting the rapid nanowelding process silver nanowires (AgNWs) onto polyethylene terephthalate substrate under Xe‐lamp irradiation mechanical pressing treatment is reported. The performance AgNWs FTCEs...
Host–guest doping was adopted to reduce luminescence quenching and improve the brightness of carbon dot-based light emitting diodes (CD-LEDs).
Two highly efficient red neutral iridium(III) complexes, Ir1 and Ir2, were rationally designed synthesized by selecting two pyridylimidazole derivatives as the ancillary ligands. Both Ir2 show nearly same photoluminescence emission with maximum peak at 595 nm (shoulder band about 638 nm) achieve high solution quantum yields of up to 0.47 for 0.57 Ir2. Employing emitters, fabricated organic light-emitting diodes (OLEDs) outstanding performance external efficiency (EQE), current (CE), power...
Abstract Ultrahigh brightness blue carbon dot–based light‐emitting diodes (CD‐LEDs) are fabricated by a host–guest doping method with poly( N ‐vinylcarbazole) (PVK) as the host to realize high and pure emission of CD‐LEDs. Oleophylic CDs synthesized dopant obtain wide range concentration because oleophylic PVK can be well cosoluble in chlorobenzene at any concentration. Therefore, CD‐LEDs emitting light that dominantly originates from CDs' realized optimizing A energy transfer is main...
Orange and red light-emitting materials were successfully obtained by linking TPA, BT AN. Owing to their AIE features, the performances of non-doped devices are superior those doped ones.
Thermally activated delayed fluorescent (TADF) materials exhibiting the fast reverse intersystem crossing (RISC) process are essential for improving stability of organic light-emitting diodes (OLEDs). However, most TADF emitters, upconversion processes from lowest triplet state (T1) to singlet (S1) still inefficient due low RISC (kRISC) rate below 105 s–1. Herein, we report two molecules, 2DACz-mCN and 2DACz-oCN, that possess multiple donor units minimize singlet–triplet energy splitting...
In this work, we report the effort to develop high-efficiency inverted polymer solar cells (PSCs) by applying a solution-processable bilayer ZnO/carbon quantum dots (C-QDs) electron extraction layer (EEL). It is shown that use of EEL helps suppress exciton quenching passivating ZnO surface defects in EEL, leading an enhanced dissociation, reduced charge recombination and more efficient probability, thereby achieving high power conversion efficiency (PCE). The PSCs, based on blend...
Four bipolar materials using 1,2,4-triazol derivative as an acceptor and carbazole a donor were synthesized. They can be used not only emitters to fabricate deep-blue OLEDs, but also hosts construct PhOLEDs.
The OLEDs, having mixed hosts sandwiched between hole- and electron-transporting hosts, exhibit an EQE exceeding the theoretical limit extremely small efficiency roll-off.
The doped device of <bold>TPA-DFCP</bold> exhibits excellent deep-blue emission with the EL peak at 436 nm and CIE coordinates (0.153, 0.077), performance a maximum external quantum efficiency (EQE) 8.30%.
Two novel multifunctional HLCT materials, namely <bold>OCI</bold> and <bold>OCT</bold>, were presented they proved to be better green hosts than CBP. Acting as a deep-blue emitter, the <bold>OCI</bold>-based device achieved an EQE of 5.06% CIE<sub>y</sub> < 0.04 with EL peak at 424 nm.
Abstract Constructing core–shell structure is recognized as an effective approach for the conventional colloidal semiconductor nanocrystals (NCs) to improve their stability and optical performance in optoelectronic applications. It is, however, still a challenge develop green manufacture lead halide perovskite NCs (PeNCs). Herein, ice‐confined freeze‐thaw strategy using pure water solvent devised, which results surface reconstruction of CsPbBr 3 PeNCs thereby formatting CsPb 2 Br 5 shell on...
A tetra-chromatic hybrid WOLED exhibits good warm white emission, showing stable EL spectra with a maximum CRI of 94, and also reveals high EQE 17.71%.
TQT exhibits multifunctional luminescence characteristics, such as polymorphism and mechanochromic, with potential application in OLEDs. An extremely high photoluminescence quantum yield of 96.5% is achieved CBP: TQT-G doped film.
We present a novel design strategy for exploiting heterocycle aromaticity to fabricate new hot exciton materials. A series of blue-emitting materials based on non-aromatic pyrazolines has been successfully developed.