A5019368470- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Organic Light-Emitting Diodes Research
- Luminescence and Fluorescent Materials
- Perovskite Materials and Applications
- Advanced Memory and Neural Computing
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Molecular Sensors and Ion Detection
- Lanthanide and Transition Metal Complexes
- Supercapacitor Materials and Fabrication
- Molecular Junctions and Nanostructures
- Layered Double Hydroxides Synthesis and Applications
- Analytical Chemistry and Sensors
- Advancements in Battery Materials
- Luminescence Properties of Advanced Materials
- Semiconductor materials and devices
- Crystallography and molecular interactions
- Graphene research and applications
- Metal-Organic Frameworks: Synthesis and Applications
- Quantum and electron transport phenomena
- Covalent Organic Framework Applications
- Synthesis and properties of polymers
- Thin-Film Transistor Technologies
- Photochromic and Fluorescence Chemistry
Fujian Normal University
2016-2025
Queensland University of Technology
2024
Fuzhou University
2015-2020
Materials Science & Engineering
2015-2017
Nanjing University of Posts and Telecommunications
2008-2013
Shanghai Jiao Tong University
2012
National University of Singapore
2002-2009
National Taipei University of Technology
2009
National Taiwan University of Science and Technology
2006-2009
Zhejiang University
2000-2002
We design and synthesize four fused-ring electron acceptors based on 6,6,12,12-tetrakis(4-hexylphenyl)-indacenobis(dithieno[3,2-b;2′,3′-d]thiophene) as the electron-rich unit 1,1-dicyanomethylene-3-indanones with 0–2 fluorine substituents electron-deficient units. These molecules exhibit broad (550–850 nm) strong absorption high extinction coefficients of (2.1–2.5) × 105 M–1 cm–1. Fluorine substitution downshifts LUMO energy level, red-shifts spectrum, enhances mobility. The polymer solar...
A new fluorinated nonfullerene acceptor, ITIC-Th1, has been designed and synthesized by introducing fluorine (F) atoms onto the end-capping group 1,1-dicyanomethylene-3-indanone (IC). On one hand, incorporation of F would improve intramolecular interaction, enhance push-pull effect between donor unit indacenodithieno[3,2-b]thiophene acceptor IC due to electron-withdrawing F, finally adjust energy levels reduce bandgap, which is beneficial light harvesting enhancing short-circuit current...
Herein, new types of zero-dimensional (0D) perovskites (PA6InCl9 and PA4InCl7) with blue room-temperature phosphorescence (RTP) were obtained from InCl3 aniline hydrochloride. These are highly sensitive to external light force stimuli. The RTP quantum yield PA6InCl9 can be enhanced 25.2 % 42.8 upon illumination. Under mechanical force, PA4InCl7 exhibits a phase transform PA6InCl9, thus boosting ultralong lifetime up 1.2 s. Furthermore, white orange pure close 100 realized when Sb3+ was...
Synergism between covalent and non-covalent bonds is employed to fix an organic phosphor guest in a rigid inorganic framework, simulating the stiffening effect seen glassy state realizing efficient ultralong room-temperature phosphorescence (RTP). Twelve heavy-atom-free composites have been obtained through introducing arylboric or arylcarboxylic acid derivatives into boric matrix by solid-phase synthesis. Owing of multiple bonds, all show highly persistent RTP molecules with quantum yield...
2D organic-inorganic hybrid perovskites (OIHPs) show obvious advantages in the field of optoelectronics due to their high luminescent stability and good solution processability. However, thermal quenching self-absorption excitons caused by strong interaction between inorganic metal ions lead a low luminescence efficiency perovskites. Herein, Cd-based OIHP phenylammonium cadmium chloride (PACC) with weak red phosphorescence (ΦP < 6%) at 620 nm blue afterglow is reported. Interestingly,...
The device under testing was a plastic dynamic random access memory based on donor-functionalized polyimide (TP6F-PI), which exhibited the ability to write, read, erase, and refresh electrical states. had an ON/OFF current ratio up 105, promising minimal misreading error. Both off states were stable constant voltage stress of 1 V survived 108 read cycles at V.
A polymer-memory device based on a copolymer containing carbazole (donor) and Eu-complex (acceptor) groups in metal/insulator/metal architecture is described. The nonvolatile has two distinctive bistable conductivity states, exhibits high ON/OFF current ratio, fast response time, acceptable retention under ambient conditions. Application of potential sets the to high-conductivity ON state by generating holes (see Figure).
As an emerging area in organic electronics, polymer memories have become active research topic recent years. Polymer based on bistable electrical switching are likely to be alternative or supplementary technology the conventional memory facing problem miniaturizing from micro- nano-scale. In this article, account of our work a series processable electroactive polymers is given. The can provide required electronic properties within single macromolecule for device applications. Bistable...
By varying the carbon nanotube (CNT) content in poly(N-vinylcarbazole) (PVK) composite thin films, electrical conductance behavior of an indium-tin oxide/PVK-CNT/aluminum (ITO/PVK-CNT/Al) sandwich structure can be tuned a controlled manner. Distinctly different behaviors, such as (i) insulator behavior, (ii) bistable switching effects (write-once read-many-times (WORM) memory effect and rewritable effect), (iii) conductor are discernible from current density-voltage characteristics films....
A functional polymer (PVK-C60), containing carbazole moieties (electron donors) and fullerene (electron-acceptors) in a molar ratio of about 100:1, was synthesized via covalent tethering C60 to poly(N-vinylcarbazole) (PVK). The molecular structure composition PVK-C60 were characterized by FTIR, Raman, UV-vis absorption spectroscopy, gel permeation chromatography (GPC), X-ray photoelectron spectroscopy (XPS), cyclic voltammetry (CyV). C60-modified PVK exhibited an enhanced glass-transition...
A simple and effective strategy on producing solution-processable materials with highly efficient persistent room-temperature-phosphorescence (RTP) is presented here.
Abstract The rich molecular design of electron donor (D)–acceptor (A) polymers offers many valuable clues to obtain high‐efficiency hole‐transporting materials (HTMs) for use in perovskite solar cells (PVSCs). fused aromatic or heteroaromatic units can increase the conjugation polymer backbone facilitate delocalization, which increases rigidity adjacent prevent rotational disorder and lower reorganization energy, leading improved carrier mobility optimized film morphology. In this work,...
Ultralong and colorful clusterization-triggered phosphorescence (CTP) has been realized by changing polymerization conditions of polyacrylamides (PAMs). These materials have huge potential in the application sensing, anti-counterfeiting LEDs.
Two-dimensional (2D) white-light-emitting hybrid perovskites (WHPs) are promising active materials for single-component diodes (WLEDs) driven by UV. However, the reported WHPs exhibit low quantum yields (≤9%) and color rendering index (CRI) values less than 85, which does not satisfy demand of solid-state lighting applications. In this work, we report a series mixed-halide 2D layered (C6H5C2H4NH3)2PbBrxCl4–x (0 < x 4) obtained from phenethylammonium cation. Unlike including...
Abstract In conventional n–i–p perovskite solar cells (PVSCs), electron donor (D)–acceptor (A) polymers have been found to be potential substitutes for doped spiro‐based small molecule hole‐transporting materials (HTMs) due their excellent performance in hole mobility, film formability, and stability. Herein, a benzo[1,2‐b:4,5‐b′]dithiophene (BDT)‐benzodithiophene‐4,8‐dione (BDD) copolymer PBDB‐Cz is developed by employing carbazole as the conjugated side chain of BDT. PBDB‐O PBDB‐T with...
Abstract Tautomers coexisting in an equilibrium system have significant potential for regulating luminescent properties because of their structural differences. However, separating and stabilizing tautomers at room temperature is a considerable challenge. In this study, it found that hydrogen‐bonded organic frameworks (HOFs) composed Br ‐ anions can effectively separate stabilize two proton‐transfer triarylformamidinium bromide: namely, the nitrogen cation (BA‐N) carbon (BA‐C). The BA‐N...
Electronic memory devices having the indium−tin oxide/polymer/Al sandwich structure were fabricated from polymers containing pendant azobenzene chromophores in donor−acceptor structures. The reversibility, or rewritability, of high-conductivity (ON) state was found to be dependant on terminal moiety chromophore. While with electron-accepting moieties (−Br −NO2) exhibit write-once, read-many-times (WORM) type behavior, those electron-donating (−OCH3) exihibit rewritable (FLASH) behavior. WORM...