A5074748088- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Synthesis and Properties of Aromatic Compounds
- Organic Electronics and Photovoltaics
- Organic Light-Emitting Diodes Research
- Perovskite Materials and Applications
- Crystallography and molecular interactions
- Luminescence and Fluorescent Materials
- Metal and Thin Film Mechanics
- Diamond and Carbon-based Materials Research
- Analytical Chemistry and Sensors
- Molecular Junctions and Nanostructures
- Solid-state spectroscopy and crystallography
- Conducting polymers and applications
- Semiconductor materials and devices
- Energetic Materials and Combustion
- Thermal and Kinetic Analysis
- Liquid Crystal Research Advancements
- Quantum Dots Synthesis And Properties
- Silicon Carbide Semiconductor Technologies
- Chalcogenide Semiconductor Thin Films
- Spectroscopy and Laser Applications
- Graphene research and applications
- 2D Materials and Applications
- Magnetism in coordination complexes
Max Planck Institute of Microstructure Physics
2023-2025
Max Planck Institute for Chemistry
2025
National Engineering Research Center of Electromagnetic Radiation Control Materials
2024
University of Electronic Science and Technology of China
2018-2024
State Key Laboratory of Electronic Thin Films and Integrated Devices
2024
Zhengzhou University
2023-2024
Linköping University
2021-2023
Nanjing Tech University
2023
Imperial College London
2018-2022
City University of Hong Kong
2018-2020
The emission of circularly polarized light is central to many applications, including data storage, optical quantum computation, biosensing, environmental monitoring, and display technologies. An emerging method induce (chiral) (CP) electroluminescence from the active layer polymer light-emitting diodes (polymer OLEDs; PLEDs) involves blending achiral polymers with chiral small-molecule additives, where handedness/sign CP controlled by absolute stereochemistry small molecule. Through...
Polymer thin films that emit and absorb circularly polarised light have been demonstrated with the promise of achieving important technological advances; from efficient, high-performance displays, to 3D imaging all-organic spintronic devices. However, origin large chiroptical effects in such has, until now, remained elusive. We investigate emergence phenomena achiral polymers blended a chiral small-molecule additive (1-aza[6]helicene) intrinsically chiral-sidechain using combination...
Circularly polarized (CP) electroluminescence has been demonstrated as a strategy to improve the performance of organic light-emitting diode (OLED) displays. CP emission can be generated from both small-molecule and polymer OLEDs (SM-OLEDs PLEDs), but date, these devices suffer low dissymmetry factors (g-factor < 0.1), poor device performance, or combination two. Here, we demonstrate first CP-PLED employing an inverted architecture. Through this approach, highly efficient CP-PLED, with...
Detecting circularly polarized light is central to many advanced sensing technologies. We summarize the recent progress on chiral materials developed for CPL detection and provide perspectives strategies improve dissymmetry factors.
Abstract Circularly polarized light (CPL) is widely used for various applications in sensing and imaging 1–3 . An ongoing challenge to realize high-quality CPL detection using chiral organic semiconductors, especially the near-infrared (NIR) region 4 Chiral molecules tend rely on twisted stereogenic moieties; however, conventional approaches reduce bandgap of semiconductors are based use co-planar backbones that commonly lead molecular symmetries preventing chirality. Here we report a...
Passivation materials play a crucial role in wide range of high-efficiency, high-stability photovoltaic applications based on crystalline silicon and state-of-the-art perovskite materials. Currently, for photovoltaic, the mainstream passivation strategies routinely rely Herein, we have invented new amorphous (lysine)
Abstract Chiral organic‐inorganic hybrid perovskites (OIHPs) exhibit exceptional optical and chiral properties, demonstrating potential for 3D display, circularly polarized light‐emitting diodes (CP‐LEDs), CPL switches. However, the construction of OIHPs often relies on building blocks, limiting chemical diversity, possessing challenges in achieving large asymmetry factor ( g lum ) without sacrificing photoluminescence quantum yield (PLQY). Here, DMA 4 In 1‐ x Sb Cl 7 (DMA =...
Abstract A key challenge in the realization of circularly polarized polymer light‐emitting diodes (CP‐PLEDs) is generation highly deep‐blue electroluminescence (EL). Here, by blending achiral luminescent poly(9,9‐dioctylfluorene) (PFO) with a helically chiral molecule 1‐aza[6]helicene authors present CP‐PLEDs state‐of‐the‐art device performance for CP emission: an inverted semicrystalline microstructure current efficiency (CE) 1.13 cd −1 , power (PE) 0.81 lm W and EL dissymmetry ( g ) −0.42...
Electrochemical hydrogen evolution reaction (HER) under neutral condition is of great importance but remains challenging for achieving practical production due to additional water dissociation and low proton supply rate....
Circularly polarized luminescence (CPL)‐active materials have attracted considerable attention due to their potential applications in various advanced technological fields. CPL activity typically requires compounds that crystallize noncentrosymmetric chiral space groups. Achieving crystal structures using achiral molecular architectures is highly appealing but remains a significant challenge. Herein, we present strategy for designing and synthesizing high‐performance via...
Two new D–π–A-type fluorescent materials with nearly quantitative quantum yields, possessing thieno[3,2- b ]thiophene, triphenylamine and boron units, were synthesized their devices fabricated via a solution process.
We demonstrate CP-OLEDs with an impressive electroluminescence dissymmetry factor ( g EL ) > 0.3. The handedness of circularly polarized PL/EL can be inverted by varying the active layer thickness and chiral additive loading ratio.
4,4′-Azo-bis(1,2,4-triazolone) (<bold>ZTO</bold>) based salts from alkaline (Li<sup>+</sup>, K<sup>+</sup>, Na<sup>+</sup>, and Cs<sup>+</sup>), earth metal (Mg<sup>2+</sup>, Ca<sup>2+</sup>, Sr<sup>2+</sup>, Ba<sup>2+</sup>) hydrazinium salt were synthesized in a simple, straightforward manner characterized by IR NMR spectroscopy, elemental analysis.
The noble electrochemical doping agent enables stable of achiral π-CP in π-CP:aza[6]H blends, which allows better charge injection and balance for efficient circularly polarized optoelectronic devices.
Abstract Chiral lead halide perovskites have captivated considerable attentions due to their distinctive attributes, such as ferroelectricity, spin‐dependent transport, and chiroptical activity. However, toxicity weak circularly polarized luminescence (CPL) cast a pall over practical applications. Here, series of 0D lead‐free chiral enantiomorphic hybrids, ( R ‐/ S ‐MBA) 3 In 1‐ x Sb Cl 6 (x = 0–1) is successfully developed. By optimizing the 3+ doping concentration 0.55%, resultant 99.45%...
Abstract Decreasing the power consumption of light‐emitting diodes (LEDs) and increasing energy generation solar cells are crucial tasks toward mitigation greenhouse gas emissions Paris Agreement goals. Lead (Pb)‐free halide double perovskites, identified as environmentally friendly alternatives to Pb‐based not deemed useful thus far due absence high photoluminescence quantum yield (PLQY) examples large bandgaps. Herein, penta‐cationic antimony (Sb 5+ )‐doping strategy is demonstrated for...
Abstract Along with the increasing integration density and decreased feature size of current semiconductor technology, heterointegration Si‐based devices diamond has acted as a promising strategy to relieve existing heat dissipation problem. As one methods, microwave plasma chemical vapor deposition (MPCVD) method is utilized synthesize large‐scale films on Si substrate, while distinct structures appear at Si‐diamond interface. Investigation formation mechanisms modulation strategies...
We demonstrate a second-harmonic-generation (SHG) based method for the detection of gaseous elemental mercury by using newly available green diode laser. Multimode ultraviolet radiation at 253.7 nm is generated through process SHG. Correlation spectroscopy introduced into scheme to guarantee measurement accuracy. The limit achieved 0.6 μg/m3 (0.07 ppb) 1-m pathlength and 10-s integration time. accuracy estimated be 1.2%. linear response range 0~60 μg/m2 (6.7 ppb·m), within which linearity...
Abstract N , ′-Dinitro-4,4′-azo-bis(1,2,4-triazolone) (DNZTO) is synthesized by the reaction of 4,4′-azo-bistriazolone (ZTO) with a mixture nitric acid and acetic anhydride. The product was fully characterized IR, NMR, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, single-crystal X-ray analysis. explosive performance including detonation pressures (P), velocities (D) DNZTO, heats formation were predicted using gaussian 09 at B3LYP/6-311+G**.
Wood wool cement board is made of Portland as a cross-linking agent, wood fiber reinforcement material, and some additives. The precast WWCB-filled concrete floor slabs are new type hollow slab. This structure formed by pouring the bottom layer concrete, laying WWCB, then top finally curing. And this composed double-layer mesh, including which connected triangular contact bars. In order to study mechanical properties themselves, paper conducted four-point bending loading tests on 9 different...