A5050716326- Surface Chemistry and Catalysis
- Molecular Junctions and Nanostructures
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Porphyrin and Phthalocyanine Chemistry
- Surface and Thin Film Phenomena
- Organic Electronics and Photovoltaics
- Force Microscopy Techniques and Applications
- Spectroscopy and Quantum Chemical Studies
- Conducting polymers and applications
- Graphene research and applications
- Metal-Organic Frameworks: Synthesis and Applications
- Covalent Organic Framework Applications
- Supramolecular Self-Assembly in Materials
- Crystallography and molecular interactions
- Luminescence and Fluorescent Materials
- Perovskite Materials and Applications
- Photonic Crystals and Applications
- Synthesis and Properties of Aromatic Compounds
- Advanced Chemical Physics Studies
- Magnetism in coordination complexes
- Block Copolymer Self-Assembly
- Supramolecular Chemistry and Complexes
- Molecular Sensors and Ion Detection
- Metal complexes synthesis and properties
University of Chinese Academy of Sciences
2016-2025
National Center for Nanoscience and Technology
2016-2025
Chinese Academy of Sciences
2004-2022
Center for NanoScience
2010-2022
Center for Excellence in Education
2015-2020
Dongguan University of Technology
2018-2019
State Council of the People's Republic of China
2016
The University of Sydney
2016
Sichuan Normal University
2008-2015
National Institute of Advanced Industrial Science and Technology
2015
Fabricating ultrathin two-dimensional (2D) covalent organic framework (COF) nanosheets (NSs) in large scale and high yield still remains a great challenge. This limits the exploration of unique functionalities wide range application potentials such materials. Herein, we develop scalable general bottom-up approach to facilely synthesize (<2.1 nm) imine-based 2D COF NSs (including COF-366 NSs, COF-367 COF-367-Co TAPB-PDA TAPB-BPDA NSs) (>100 mg) (>55%), via an imine-exchange synthesis strategy...
Post-modification of robust guanine-quadruplex-linked 2,2'-pyridine-containing HOF-25 with Ni(ClO4 )2 ⋅ 6 H2 O followed by exfoliation using sonication method affords hydrogen-bonded organic framework (HOF) nanosheets (NSs) HOF-25-Ni in the yield 56 %. TEM and AFM technologies disclose ultrathin nature NSs thickness 4.4 nm. STM observation determines presence sql segments assembled from building blocks at heptanoic acid/highly oriented pyrolytic graphite interface, supporting simulated 2D...
Achieving efficient exciton dissociation and high power conversion efficiency (PCE) becomes a great challenge when the open-circuit voltage ( V OC ) of organic photovoltaics (OPVs) reaches an upper limit value 1.3 or higher.
Abstract Emerging step‐scheme (S‐scheme) heterostructures hold unique superiority in steering directional charge transport and reinforcing redox capacity, yet rational modification of S‐scheme by single atoms (SAs) for efficient photocatalytic H 2 evolution is rarely reported. In this work, Pd SAs‐modulated organic–inorganic g‐C 3 N 4 /CdS are designed prepared a one‐pot mechanochemical approach allowing nanosheets/CdS nanoparticles to confine atomically dispersed co‐catalysts. The...
In this paper it is demonstrated that the stabilizing effect of linear alkanes can be utilized to achieve very high stability in adsorption and assembly planar organic molecules on inert surfaces under ambient conditions, by direct deposition from solutions. Using peripherally alkylated phthalocyanines porphyrins as examples, optimal resolutions achieved with complex molecular systems. Submolecular features cores interdigitated alkyl parts are clearly visible. Distinctly different packing...
Dithieno[3,2-<italic>b</italic>:2′,3′-<italic>d</italic>]pyrrole (DTP) and its derivatives have occupied an important position in both electron-rich electron-deficient building blocks to construct photovoltaic materials. Here, we highlight the exciting progress of donors based on original DTP,<italic>N</italic>-acyl DTP fused acceptors lactam imide, respectively.
Linear A–D–A or A−π–D−π–A architectures are predominant in the design of promising nonfullerene acceptors (NFAs), which promoted rapid progress organic solar cells. However, utilization four electron-accepting units (A) to construct four-armed NFAs is rarely reported and relationship structure–properties–performance unclear. In this study, we designed synthesized a novel acceptor (A401) with an (AA)−π–D−π–(AA) configuration, where 1,1-dicyanomethylene-3-indanone groups were used as...
Detecting CO2 in complex gas mixtures is challenging due to the presence of competitive gases ambient atmosphere. Photoelectrochemical (PEC) techniques offer a solution, but material selection and specificity remain limiting. Here, we constructed hydrogen-bonded organic framework based on porphyrin tecton decorated with diaminotriazine (DAT) moieties. The DAT moieties molecules not only facilitate formation complementary hydrogen bonds between tectons also function as recognition sites...
Hydrogen-bonded two-dimensional networks of 1,3,5-tris(10-carboxydecyloxy) benzene (TCDB) were formed on the surface highly oriented pyrolytic graphite (HOPG). With these as host and copper(II) phthalocyanine (CuPc) coronene guest molecules, host−guest architectures CuPc/TCDB coronene/TCDB achieved when molecules coadsorb HOPG. The monolayer structure TCDB inclusion structures systems investigated by STM.
A selective invitation: 2D hydrogen-bonded porous network formed by an azobenzene derivative (NN4 A) contains two different types of cavities and is shown to selectively accommodate fullerenes C80 Sc3N§C80 (see picture). Highly ordered fullerene arrays are constructed at the liquid–solid interface graphite coadsorption NN4 A. While C60 occupies both cavity, only immobilized in one cavity type. Supporting information for this article available on WWW under...
The macrocyclic compounds consisting of photosensitive units as parts the frame have been extensively studied to mimic photoregulated functions in nature. In this paper, controlled assembly well-ordered arrays rectangles is demonstrated by using a host-guest molecular template. 4NN-Macrocycle molecules are observed photoisomerize from trans-trans-trans-trans (t,t,t,t) range isomers including trans-trans-trans-cis (t,t,t,c) and trans-cis-trans-cis (t,c,t,c) after irradiation UV light....
Controlled regulation of the switchable behavior supramolecular network is central to potential application in molecular scale nanodevices. In this work, it reported that reversible accommodation guest molecules nanoporous can be regulated by UV/visible light. The complex template TCDB/4NN-Macrocycle(trans,trans,trans,trans) with photosensitive units well-defined. After UV irradiation, switched on encapsulate coronene due formation a new photoisomer(trans,cis,trans,cis) and off expel from...
By introducing an azobenzene group to the backbone of diboronic acid, we have obtained a surface-confined, photoresponsive single-layer covalent organic framework with long-range order and almost entire surface coverage. Scanning tunneling microscopic characterization indicates that though linkage provides significant locking effect, isomerization can still happen under UV irradiation, which causes destruction COF. Furthermore, decomposed COF recover upon annealing. This photoinduced...
With tunable cavities, the two-dimensional (2D) hydrogen bonded supramolecular networks are receiving increasing attention in surface chemistry during past decade. Herein, we give a brief account of our efforts on 2D host–guest based molecular connected by bonds, with an aid scanning tunnelling microscopy (STM) technique. Following assembling, have constructed group H-bonded cavities different sizes, shapes, and symmetry characteristics HOPG surface. Our researches reported that these open...
Abstract Four new donor–acceptor triads (D–A–D) based on discotic and arylene mesogens have been synthesized by using Sonogashira coupling cyclization reactions. This family of consists two side‐on pending triphenylene mesogens, acting as the electron‐donating groups (D), laterally connected through short lipophilic spacers to a central perylenediimide (PI), benzo[ ghi ]perylenediimide (BI), or coronenediimide (CI) molecular unit, respectively, playing role electron acceptor (A). All D–A–D...
Electron-rich (donor) and electron-deficient (acceptor) units to construct donor–acceptor (D–A) conjugated macrocycles were investigated elucidate their interactions with fullerene. Triphenylamine 4,7-bisthienyl-2,1,3-benzothiadiazole alternately linked through acetylene, as the donor acceptor units, respectively, for pentagonal 3B2A hexagonal 4B2A macrocycles. As detected by scanning tunneling microscopy, both D–A found form an interesting concentration-controlled nanoporous monolayer on...
We provided an ultrasensitive sensing strategy for microRNA detection by first employing branched DNA. With the aid of microcontact printing, we realized multiplex different kinds liver cancer biomarkers: and protein simultaneously. Delicately designed DNA included multiple complementary sticky ends as probe to capture double-stranded rigid core increase active sticky-ends distance expose more probes sensitivity. The enables 2 orders magnitude in sensitivity over single-stranded limit...
Though moderate heating in a controlled environment is generally considered to be necessary, this work we show that the most important prerequisite for obtaining high quality 2D imine polymers at interface concentration and molar ratio of building blocks on surface. With diverse monomers have demonstrated concentration-in-control strategy general powerful way construct covalent single layer with regularity solid/liquid interface.
Molecular structures are known to significantly impact the adsorption and assembling behavior of adsorbates on surfaces. Precise control molecular orientation ordering will enable us tailor physical chemical properties architectures. In this work, we present a strategy attaching functional groups with dissimilar characteristics top bottom phthalocyaninato moieties triple-decker complex, orientational-dependent such molecules at liquid/solid interface has been identified, which is attributed...
In this review, we introduce recent progress on surface synthesis and focus supramolecular self-assembled structures driven by several typical chemical reactions at solid surfaces, with the aid of scanning tunneling microscopy (STM). We also emphasize relationship between non-covalent self-assembly reactivity, which hope to find an effective way for further controllable nano-manufacture.
A series of hybrid materials consisting Tris[(2-pyridyl)methyl]amine modified polyoxomolybdates were obtained and some complexes have efficient photocatalytic activities to degrade pararosaniline hydrochloride dye molecules.
Two new planar small molecule acceptors (SMAs) with A 2 = 1 ‐D‐A skeleton are designed and synthesized, where indacenodithiophene (IDT), benzothiadiazole (BT), thiazolidine‐2,4‐dione (TD) used as the central donor unit of D, bridged group end , respectively. The final SMAs BT2 BT2b reveal high‐lying lowest unoccupied molecular orbital (LUMO) in comparison that rhodanine (R) based analogs, which can increase open‐circuit voltage ( V OC ) P3HT‐based solar cells. In addition, by modulating side...