Yu Chen

ORCID: 0000-0002-7316-8029
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Conducting polymers and applications
  • Advanced Memory and Neural Computing
  • Nonlinear Optical Materials Studies
  • Perovskite Materials and Applications
  • Porphyrin and Phthalocyanine Chemistry
  • Organic Electronics and Photovoltaics
  • Luminescence and Fluorescent Materials
  • 2D Materials and Applications
  • Photoreceptor and optogenetics research
  • Covalent Organic Framework Applications
  • Advanced Fiber Laser Technologies
  • Organic Light-Emitting Diodes Research
  • Graphene research and applications
  • Advanced Sensor and Energy Harvesting Materials
  • Metal-Organic Frameworks: Synthesis and Applications
  • Nonlinear Optical Materials Research
  • Advanced biosensing and bioanalysis techniques
  • Carbon and Quantum Dots Applications
  • Supercapacitor Materials and Fabrication
  • Photochemistry and Electron Transfer Studies
  • Quantum Dots Synthesis And Properties
  • Laser-Ablation Synthesis of Nanoparticles
  • Neuroscience and Neural Engineering
  • Molecular Junctions and Nanostructures
  • Semiconductor materials and devices

Chinese Academy of Sciences
2012-2025

East China University of Science and Technology
2016-2025

Changchun Institute of Applied Chemistry
2012-2025

University of Science and Technology of China
2024-2025

ShanghaiTech University
2023-2025

Shandong University of Technology
2023-2025

Xiangtan University
2025

Shandong University of Science and Technology
2022-2025

Peking Union Medical College Hospital
2013-2024

Chinese Academy of Medical Sciences & Peking Union Medical College
2013-2024

The nonlinear optical (NLO) and limiting (OL) properties of graphene families, including oxide nanosheets, nanosheets (GNSs), nanoribbons (GONRs), (GNRs), were investigated at 532 1064 nm using a nanosecond regime. GNSs, GONRs, GNRs exhibited broadband NLO OL properties. Reduced samples stronger responses than their precursors because increased crystallinity conjugation. Nonlinear scattering two-photon-absorption found to have strong effects on the nanostructures.

10.1063/1.3279148 article EN Applied Physics Letters 2010-01-18

Viologen-inspired aromatic molecules, polymers, and functional materials their versatile applications will be introduced in this review.

10.1039/c9ta01724k article EN Journal of Materials Chemistry A 2019-01-01

Polymer materials have been considered as promising candidates for the implementation of memristor devices due to their low-cost, easy solution processability, mechanical flexibility and ductibility, tunable electronic performance through innovative molecular design cum synthesis strategy compatibility with complementary metal oxide semiconductor (CMOS) technology well. The digital-type polymer behaves resistive random access memory non-volatility, high density, more speed, low power...

10.1039/c4mh00067f article EN Materials Horizons 2014-06-02

History-dependent memristive behaviors, which can emulate the plasticity, short-term memory to long-term transition, and learning function of biological synapses, are demonstrated in viologen/triphenylamine-containing polymer organic redox system. Together with advantages mechanical flexibility deformability, resistive switching materials devices promising candidates for construction large-scale neuromorphic networks smart computers. As a service our authors readers, this journal provides...

10.1002/aelm.201500298 article EN Advanced Electronic Materials 2015-11-24

Recent progress in artificial intelligence is largely attributed to the rapid development of machine learning, especially algorithm and neural network models. However, it performance hardware, particular energy efficiency a computing system that sets fundamental limit capability learning. Data-centric requires revolution hardware systems, since traditional digital computers based on transistors von Neumann architecture were not purposely designed for neuromorphic computing. A platform...

10.1088/1361-6528/aba70f article EN cc-by Nanotechnology 2020-07-17

Abstract Polymer memristors with light weight and mechanical flexibility are preeminent candidates for low-power edge computing paradigms. However, the structural inhomogeneity of most polymers usually leads to random resistive switching characteristics, which lowers production yield reliability nanoscale devices. In this contribution, we report that by adopting two-dimensional conjugation strategy, a record high 90% polymer has been achieved miniaturization low power potentials. By...

10.1038/s41467-021-22243-8 article EN cc-by Nature Communications 2021-03-31

Covalent organic framework (COF) membranes with tunable ordered channels and free groups hold great promise in molecular separations owing to the synergy of physical chemical microenvironments. Herein, we develop a defect engineering strategy fabricate COF for efficient CO2 separation. Abundant amino are situ generated on nanosheets arising from missing-linker defects during reactive assembly amine monomer mixed aldehyde monomers. The assembled membranes. Amino groups, as facilitated...

10.1002/anie.202210466 article EN Angewandte Chemie International Edition 2022-08-18

The instability of top interface induced by interfacial defects and residual tensile strain hinders the realization long-term stable n-i-p regular perovskite solar cells (PSCs). Herein, one molecular locking strategy is reported to stabilize adopting polydentate ligand green biomaterial 2-deoxy-2,2-difluoro-d-erythro-pentafuranous-1-ulose-3,5-dibenzoate (DDPUD) manipulate surface grain boundaries films. Both experimental theoretical evidence collectively uncover that uncoordinated Pb

10.1002/adma.202312679 article EN Advanced Materials 2024-02-01

The instability of the buried interface poses a serious challenge for commercializing perovskite photovoltaic technology. Herein, we report polydentate ligand reinforced chelating strategy to strengthen stability by managing interfacial defects and stress. bis(2,2,2-trifluoroethyl) (methoxycarbonylmethyl)phosphonate (BTP) is employed manipulate interface. C=O, P=O two -CF

10.1002/anie.202317185 article EN Angewandte Chemie International Edition 2024-01-05

Abstract The defects from functional layers and interface, the agglomeration of SnO 2 nanoparticles (NPs), poor perovskite crystallization are main barrier to further heightening power conversion efficiency (PCE) stability regular solar cells. Here, a bottom‐up multilayer manipulation strategy by pre‐embedding multisite racemic DL‐cysteine hydrochloride monohydrate (DLCH) into electron transport layer (ETL) is reported. positively negatively charged ETL, their interface can be passivated...

10.1002/adfm.202315064 article EN Advanced Functional Materials 2024-01-07

Major disadvantages of black phosphorus (BP) are its poor air-stability and solubility in common organic solvents. The best way to solve this problem is incorporate BP into a polymer backbone or matrix form novel functional materials that can provide both challenges opportunities for new innovation optoelectronic photonic applications. As proof-of concept application, we synthesized situ the first highly soluble conjugated polymer-covalently functionalized derivative (PDDF-g-BP) which was...

10.1002/anie.201712675 article EN Angewandte Chemie International Edition 2018-02-22

Abstract Memristors with enormous storage capacity and superior processing efficiency are of critical importance to overcome the Moore’s Law limitation von Neumann bottleneck problems in big data artificial intelligence era. In particular, integration multifunctionalities into a single memristor promises an essential strategy obtaining high-performance electronic device that satisfies nowadays increasing demands processing. this contribution, we report proof-of-concept polymer memristive...

10.1038/s41467-019-08642-y article EN cc-by Nature Communications 2019-02-13

We present the synthesis and photovoltaic application of four conjugated polymers composed benzo[1,2-b:4,5-b′]dithiophene (BDT)-based 2,3-diphenyl-5,8-di(thiophen-2-yl)quinoxaline (DTQx)-based units. Fluorination DTQx units side groups BDT unit shows synergistic effect on molecular energy level modulation polymers, as a result, polymer PBQ-4 exhibits deepest HOMO LUMO levels in these polymers. The characterizations properties solar cells (PSCs) based reveal that fluorination has little...

10.1021/acs.macromol.5b00829 article EN Macromolecules 2015-07-24

This review surveys recent research advances in the area of IDT-based conjugated materials for photovoltaic applications. The factors affecting bandgaps, molecular energy levels, film morphologies, as well performance these have also been discussed.

10.1039/c7ta02562a article EN Journal of Materials Chemistry A 2017-01-01

Ionic covalent organic framework nanosheets (iCOFNs) with long-range ordered and mono-dispersed ionic groups hold great potential in many advanced applications. Considering the inherent drawbacks of oil-water biphase method, herein, we explore an oil-water-oil triphase method based on phase engineering strategy for bottom-up synthesis iCOFNs. The middle water serves as a confined reaction region, two oil phases are reservoirs storing supplying monomers to phase. A large aqueous space low...

10.1002/anie.202112271 article EN Angewandte Chemie International Edition 2021-10-09

As a conjugated and unsymmetric building block composed of an electron-poor seven-membered sp2 carbon ring electron-rich five-membered ring, azulene its derivatives have been recognized as one the most promising blocks for novel electronic devices due to intrinsic redox activity. By using 1,3,5-tris(4-aminophenyl)-benzene azulene-1,3-dicarbaldehyde starting materials, azulene(Azu)-based 2D covalent organic framework, COF-Azu, is prepared through liquid-liquid interface polymerization...

10.1002/anie.202217249 article EN Angewandte Chemie International Edition 2022-12-13

The development of large-area two-dimensional all sp2 carbon-linked covalent organic frameworks (COFs) film still remains a challenge, because the shortage effective synthesis methods and optimal building blocks. To date, vinylene-bridged COFs synthesized by solvothermal method at high temperatures pressures are insoluble unprocessable powders, which lead to formidable challenge in fabricating thin film-based electronic optoelectronic devices. By using liquid–liquid interface polymerization...

10.1021/acsmaterialslett.2c01047 article EN ACS Materials Letters 2023-02-21

Abstract Enhancing stability while maintaining high efficiency is among the primary challenges in commercialization of perovskite solar cells (PSCs). Here, a crystal growth technique assisted by situ generated 2D phases has been developed to construct high‐quality 2D/3D films. The serve as templates for regulating nucleation and oriented α‐FAPbI 3 ‐rich film. This led film quality with much reduced trap density an ultralong carrier lifetime. obtained shows excellent under extreme environment...

10.1002/adma.202405921 article EN Advanced Materials 2024-06-21

The urgent need for portable, sensitive, and accurate techniques to analyze multiple antibiotics is critical mitigating the health risks associated with low-dose coexposure-induced drug resistance, especially in infants. Emerging field-effect transistor (FET) biosensors are expected realize above requirement, but face challenges terms of sensitivity selectivity complex solutions practical applications. Here, we introduce a small-molecule coating strategy on carbon nanotube (CNT)-FET...

10.1021/acsnano.5c00523 article EN ACS Nano 2025-03-14
Coming Soon ...