A5025266902- Organic Light-Emitting Diodes Research
- Organic Electronics and Photovoltaics
- Luminescence and Fluorescent Materials
- Perovskite Materials and Applications
- 2D Materials and Applications
- Quantum and electron transport phenomena
- Magnetic properties of thin films
- Conducting polymers and applications
- Physics of Superconductivity and Magnetism
- Magnetic Properties and Applications
- Photonic and Optical Devices
- Solar and Space Plasma Dynamics
- Molecular Junctions and Nanostructures
- Magneto-Optical Properties and Applications
- Lanthanide and Transition Metal Complexes
- Quantum Dots Synthesis And Properties
- GaN-based semiconductor devices and materials
- Shape Memory Alloy Transformations
- Semiconductor Lasers and Optical Devices
- Solid-state spectroscopy and crystallography
- Piezoelectric Actuators and Control
- Radiation Therapy and Dosimetry
- Astrophysics and Cosmic Phenomena
- Thin-Film Transistor Technologies
- Transition Metal Oxide Nanomaterials
CIC nanoGUNE
2022-2025
South China University of Technology
2011-2024
State Key Laboratory of Luminescent Materials and Devices
2018-2024
Cyprus University of Technology
2022-2023
Changchun Institute of Applied Chemistry
2017-2019
University of Science and Technology of China
2018-2019
State Key Laboratory of Polymer Physics and Chemistry
2017-2019
Chinese Academy of Sciences
2016-2019
State Council of the People's Republic of China
2019
University of Chinese Academy of Sciences
2017
Purely organic electroluminescent materials, such as thermally activated delayed fluorescent (TADF) and triplet-triplet annihilation (TTA) basically harness triplet excitons from the lowest excited state (T1 ) to realize high efficiency. Here, a material that can convert into singlet high-lying (T2 ), referred here "hot exciton" path, is reported. The energy levels of this compound are determined sensitization nanosecond transient absorption spectroscopy measurements, i.e., small splitting...
Abstract Aggregation‐induced emission (AIE) materials are attractive for achieving highly efficient nondoped organic light‐emitting diodes (OLEDs) owing to their strong luminescence in the solid state. However, electroluminescence efficiency of most AIE‐based OLEDs remains low waste triplet excitons. Here, using theoretical calculations, photophysical dynamics, and magnetoluminescence measurements, spin conversion process is demonstrated between high‐lying state (T n ) lowest excited singlet...
Abstract Aggregation‐induced emission (AIE) materials are highly attractive because of their excellent properties high efficiency in nondoped organic light‐emitting diodes (OLEDs). Therefore, a deep understanding the working mechanisms, further improving electroluminescence (EL) resulting AIE‐based OLEDs, is necessary. Herein, conversion process from higher energy triplet state (T 2 ) to lowest singlet (SS 1 found OLEDs based on blue AIE material,...
Stretch-alignment of CsPbBr<sub>3</sub> perovskite nanorods synthesized <italic>in situ</italic> in a polymer matrix leads to polarized emission.
Abstract An effective method to utilize the radiation of long‐range coupled electron–hole pairs improve electroluminescence performance exciplex‐based organic light‐emitting diodes (OLEDs) is realized by codoping an spacer into bulk‐heterojunction exciplex emitter. The photoluminescence properties codoped films reveal that fraction delayed fluorescence will be clearly strengthened with increasing ratio, indicating more triplet excitons can utilized effectively, thus greatly enhancing...
Two-dimensional magnets and superconductors are emerging as tunable building-blocks for quantum computing superconducting spintronic devices, have been used to fabricate all two-dimensional versions of traditional such Josephson junctions. However, novel devices enabled by unique features materials not yet demonstrated. Here, we present NbSe2/CrSBr van der Waals spin valves that exhibit infinite magnetoresistance nonreciprocal charge transport. These responses arise from a metamagnetic...
Triplet excited states in exciplex-based organic light emitting diodes (OLEDs) can be wasted by transferring their energy to the host material a system with smaller triplet levels.
Nonlocal magnon transport can provide valuable insight into the magnetic properties of insulators (MIs). A spin-flop transition, a typical reorientation in antiferromagnets, is expected to affect transport, but studies on this topic are still rare and remain challenging, especially for van der Waals materials. Here we demonstrate unconventional driven by an anisotropic transition antiferromagnet NiPS3. Examining nonlocal voltage from thermally magnons reveals sharp jumps at certain...
This study addresses the problem of inverse hysteretic compensation for a class uncertain dynamic non-linear systems preceded by unknown non-linearities, where hysteresis is described Prandtl–Ishlinskii (P–I) model. First, continuous P–I model decomposed into discrete operator and small-bounded error. Then, constructed to eliminate effects, bounded error estimated controller. To avoid possible chattering caused sign function, smooth robust adaptive controller with hyperbolic tangent function...
Dispersive diffusion and annihilation of excitations in the amorphous aggregate phase a square-planar PtOEP sensitizer solid state result activation delayed fluorescence through an up-converted Pt II -centered state.
We investigate the magneto-conductance and magneto-electroluminescence effects in 4,4′-(cyclohexane-1,1-diyl)bis(<italic>N</italic>,<italic>N</italic>-di-<italic>p</italic>-tolylaniline) (TAPC)-based OLEDs.
A route toward processable n-type terpolymers is presented herein based on the random donor–acceptor–donor–acceptor (D–A1)-(D–A2) molecular configuration. Carbazole utilized as electron donating unit (D) combined with perylene diimide (PDI) first acceptor (A1) and either one of two different benzothiadiazole (BTZ) derivatives (di-thienyl substituted-BTZ di-3,4-ethylenedioxythienyl substituted-BTZ) second accepting (A2). Increasing content PDI co-monomer resulted in higher weights, enhanced...
Abstract Heavy‐metal‐free pure organic room temperature phosphorescence (ORTP) holds great potential in the field of optoelectronic devices owing to low economic cost, simple preparation techniques, and high exciton utilization. However, it is still filled with challenges realizing efficiency light‐emitting diodes (OLEDs) exploring internal physical mechanism based on these ORTP molecules. Here, a high‐performance OLED induced by an unexpected interfacial spin‐mixing process between molecule...
view Abstract Citations (18) References (9) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Shadowing of Cosmic Rays by the Sun near Maximum or at Declining Phase Solar Activity Amenomori, M. ; Dai, B. Z. Ding, L. K. Feng, Y. Hibino, Hotta, N. Huang, Q. Huo, A. X. Jia, H. Kajino, F. Kasahara, Labaciren Liu, S. Mei, D. Meng, R. Mizutani, Mu, J. Nanjo, Nishizawa, Ohnishi, Ohta, I. Ouchi, T. Ren, Saito, To. Sakata, Shi, Shibata, Shiomi, Shirai, Sugimoto, Taira,...
Columnar arrangement of triplet emitters in the photoactive layer vertically-configured photodetectors enables photocurrent generation via triplet–triplet annihilation dimer species.
Abstract Phosphorescent organic light‐emitting diodes (PhOLEDs) using exciplexes as host have achieved unprecedented breakthrough. The energy transfer process between and guest is the popular way to effectively utilize excitons in this kind of devices. Actually, intermolecular spin–orbital coupling (ISOC) interaction heavy‐atom phosphorescent molecule exciplex also plays an important role exciton utilization, thus device performance, but always ignored. Here, synergistic effects ISOC on...
Abstract Triplet–triplet annihilation (TTA) is a feasible approach for utilizing electrically generated triplet excitons in organic light‐emitting diodes. However, low TTA efficiency often observed solids. Owing to the optically inaccessible nature of triplets, main loss routes process remain unknown. In this work, three vibrational emission peaks first excited state ( T 1 ) are identified sensitized room‐temperature phosphorescence molecules. These provide strong evidence channels TTA. It...
Organic semiconductors have shown obvious spin-related magnetoconductance (MC) even without the involvement of any magnetic elements, bringing an emerging research field called as organic spintronics. Tuning MC sign is crucial to realize practical application based on these spin effects. Herein, we report manipulation signs in photodiode ground-state and excited-state charge–transfer (CT) interfaces at room temperature. Different traditional CT that normally show positive MC, (GSCT)...
We demonstrate low cost, highly luminescent and stable CsPbBr 3 perovskite nanorods‐polymer composite films which can provide polarized narrow emission after macroscale stretch‐alignment. With polarization ratio 0.23 linewidth of 18 nm, these promise to improve the optical efficiency LCD help with wide color gamut display.
Transporting spin information using magnon currents in magnetic insulators has garnered considerable interest as a means to advance technology. A material's transport properties can be tuned indirectly by modifying the properties, on which former heavily depend. Molecular functionalization, organic molecules form hybrid interface with substrate material, been shown promising approach modify of metallic materials. In this work, we go beyond metals and demonstrate that interfacial interaction...
Magnetic field effects in nonmagnetic organic semiconductors (OMFEs) are attracting increasing attention because of the fingerprint characteristics their line shapes when they used to analyze dynamic processes photodiodes. However, origin and correlation OMFEs on carriers excitons currently still major challenges for researchers. In this study, we strategically designed exciplex-based single-carrier devices effectively separate investigate relationships. It is found that obvious positive...
The transient electroluminescence (EL) technique is widely used to evaluate the carrier mobility in field of organic light emitting diodes. traditional analog detection strategy using oscilloscopes generally limited since background noise causes an underestimation value. In this paper, we utilize time-correlated single-photon counting (TCSPC) probe EL for calculation. measurements on tris(8-hydroxyquinoline) aluminum (Alq3) show that electron mobilities obtained TCSPC are slightly higher...