Mingxin Yu

Northeast Electric Power University

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i-10 index

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Yang Zou

Shenzhen University

Chuluo Yang

Shenzhen University

Jingsheng Miao

Shenzhen University

An Xie

Hunan Provincial People's Hospital

Hongwei Zhao

Xi'an Jiaotong University

Guojun Lu

Baylor College of Medicine

Xiaosong Cao

Shenzhen University

Bing Dai

China Medical University

Youfeng Yue

National Institute of Advanced Industrial Science and Technology

Chunyan Cao

Guangxi Normal University

Cooperative Institutions

Shenzhen University

Chinese Academy of Sciences

Wuhan University

State Council of the People's Republic of China

Zhejiang University

Beijing Information Science & Technology University

Dalian University of Technology

Tsinghua University

Materials Science & Engineering

Xiamen University of Technology

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Papers

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Diaminoanthracene Derivatives as High-Performance Green Host Electroluminescent Materials

Chemistry of Materials (2002)

Mingxin Yu Jiun‐Pey Duan Chien-hong Lin Chien‐Hong Cheng Yu‐Tai Tao

Diaminoanthracene derivatives 9,10-bis(1-naphthylphenylamino)anthracene (α-NPA), 9,10-bis(2-naphthylphenylamino)anthracene (β-NPA), 9,10-bis(m-tolylphenylamino)anthracene (TPA), and 9,10-bis(diphenylamino)anthracene (PPA) were conveniently synthesized from the corresponding diarylamine and 9,10-dibromoanthracene in the presence of Pd(OAc)2, tri-tert-butylphosphine, and sodium tert-butoxide in o-xylene. Electroluminescent devices using α-NPA, β-NPA, and PPA as the hole transporters and host emitters were made. Devices consisting of diaminoanthracene (α-NPA, β-NPA, or PPA)/Alq3 were shown to emit intensive green light from the diaminoanthracene layer instead of the Alq3 layer. The device performance can be further improved by employing CuPc as the hole-injection layer, α-NPB or m-MTDATA as the hole-transporting layer, and Alq3 or TPBI as the electron-transporting layer. Very high brightness, current, and power efficiencies and excellent CIE coordinates can be achieved by a suitable combination of these layers. For example, device K, which consists of m-MTDATA(20 nm)/β-NPA(40 nm)/TPBI(50 nm), emits green light at 530 nm and shows a maximum external quantum efficiency of 3.68%, current efficiency of 14.79 cd/A, power efficiency of 7.76 lm/W, and maximum brightness of 64991 cd/m2.

Quantum Efficiency

Green-light

10.1021/cm020414m

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Citations (128)

Metal‐Perturbed Multiresonance TADF Emitter Enables High‐Efficiency and Ultralow Efficiency Roll‐Off Nonsensitized OLEDs with Pure Green Gamut

Advanced Materials (2022)

Junjie Wang Nengquan Li Cheng Zhong Jingsheng Miao Zhongyan Huang

Abstract Multiresonance (MR)‐induced thermally activated delayed fluorescence (TADF) emitters based on B‐ and N‐embedded polycyclic aromatics are desirable for ultrahigh‐definition organic light‐emitting diodes (OLEDs) due to their high photoluminescence quantum yield (PLQY) and narrow bandwidth. But the reverse intersystem crossing (RISC) rates of MR‐TADF emitters are usually small, resulting in severe device efficiency roll‐off at high brightness. To solve this issue, a sensitizer for the MR‐TADF emitter has been required. Herein, a new MR‐TADF emitter is developed through coordination of Au with B/N‐embedded polycyclic ligand. Benefitting from the Au perturbation, the RISC rate is dramatically accelerated to 2.3 × 10 7 s −1 , leading to delayed fluorescence lifetime as short as 4.3 µs. Meanwhile, the PLQY of 95% and full width at half maximum of 39 nm (0.18 eV) are essentially unchanged after metal coordination. Therefore, a high PLQY, short delayed fluorescence lifetime, and high color purity are concurrently realized in a single TADF emitter. Accordingly, vacuum‐deposited OLEDs exhibit high‐performance electroluminescence with a maximum external quantum efficiency (EQE) of 35.8% without sensitization. The EQE is maintained as high as 32.3% at 10 000 cd m −2 . Furthermore, solution‐processed OLED based on the emitter also achieves excellent performance with a maximum EQE of 25.7% and a small efficiency roll‐off.

Quantum Efficiency

Intersystem crossing

Quantum yield

10.1002/adma.202208378

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Citations (65)

Synthesis of a Novel Ligand Containing Phenyl Pyridine

Synthetic Communications (2009)

Mingxin Yu Haiyan Fang Youfeng Yue Yen-Chun Chen Show‐an Chen

In this article, we provide a new, efficient route to synthesize 2-[3-(3,4-bis(2-ethylhexyloxy)phenyl]phenyl pyridine ligand from readily available starting materials. The target compound was obtained by a condensation reaction and Suzuki coupling reaction. Structures of compounds were demonstrated by 1H NMR, 13C NMR, and high-resolution mass spectrometry. The advantages of this synthetic route are simple operation, mild reaction conditions, and good yields.

Suzuki reaction

Coupling reaction

Reaction conditions

Proton NMR

Condensation reaction

10.1080/00397910902923540

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Citations (4)

Graphene Fiber-Based Strain-Insensitive Wearable Temperature Sensor

IEEE Sensors Letters (2020)

Mingxin Yu Guangbin Yu Bing Dai

A strain-insensitive wearable temperature sensor based on graphene fibers is proposed to solve the temperature measurement strain interference of wearable temperature sensors. The stress, strain, and conduction characteristics of the sensor are discussed based on finite element simulations and the principle of graphene conduction. The wearable temperature sensor showed excellent negative temperature coefficient characteristics. The responsivity of the sensor is 0.85% °C ^-1 , and the sensing resolution is 0.1 °C. The sensor shows good antiinterference below a tensile strain of 90% or a curved surface with a curvature of 0.5. When the sensor is attached to the human body, it reliably detects skin temperature changes at different curved surfaces.

Strain (injury)

Strain gauge

10.1109/lsens.2020.3026671

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Citations (15)

Technical Note The Effect of the Intermediate Principal Stress on the Ground Response of Circular Openings in Rock Mass

S.‐Q. Xu Mingxin Yu

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ChemInform Abstract: Synthesis and Photophysical Properties of Novel 4‐Aryl Substituted Thiophene Derivatives with a Vinyl‐quinoline Unit.

ChemInform (2013)

Zhaozhe Xu Dian Yu Mingxin Yu

Abstract A series of novel fluorescent thiophene and quinoline derivatives are obtained by palladium‐catalyzed cross‐coupling reaction of bromothiophenyl‐vinylquinolines (III) with various arylboronic acids.

Quinoline

10.1002/chin.201402153

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Synthesis and Photophysical Properties of Conjugated Quinolines

Journal of Chemical Research (2009)

Youfeng Yue Mingxin Yu Long‐Guan Zhu

Aryl halides were prepared by condensation of 2-methylquinoline and bromo- or chloro-arylaldehydes in acetic anhydride. Diarylamines reacted with the aryl halides to afford novel triarylamine derivatives using Pd(OAc) 2 /P ( o-tolyl) 3 as catalyst. These compounds have potential as organic light-emitting device materials and were characterised by FT-IR, 1 H NMR and elemental analyses. The UV-vis absorption and photoluminescent spectra of the compounds in CH 2 CI 2 were investigated. The lowest absorption band of the triarylamine derivatives centred at about 400 nm was assigned to a charge-transfer transition with an emission at 500–515 nm.

10.3184/030823409x465286

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Citations (3)

Two titanium(iv)-oxo-clusters: synthesis, structures, characterization and recycling catalytic activity in the oxygenation of sulfides

Dalton Transactions (2017)

Ronghui Wu Ming Guo Mingxin Yu Long‐Guan Zhu

Two titanium(iv)-oxo-clusters were synthesized and can be used as homogeneous recycling catalysts in the oxygenation of sulfides.

Characterization

10.1039/c7dt02516e

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Citations (16)

Overlapped spectral demodulation of fiber Bragg grating using convolutional time-domain audio separation network

Optical Engineering (2023)

Linlin Shan Mingxin Yu Jiabin Xia Jingtao Xin Chaofan Deng

In fiber Bragg grating (FBG) sensor networks, the highly overlapped spectral signals can lead to considerable errors in center wavelength demodulation. To tackle this problem, we utilize the fully convolutional time-domain audio separation network (Conv-TasNet) model to produce a distinct spectral signal, which is then demodulated using the dual-weight centroid approach to determine the spectral signal’s center wavelength. Specifically, we first demonstrate the theoretical feasibility of the Conv-TasNet model on simulated data. Experimental results show that the Conv-TasNet model can separate the signals of three FBG sensors. After that, we collect the spectral data and further train and validate the model based on the pretrained model of the simulated data to see how it performs on the real data. The experiments consistently illustrate superior performance of our Conv-TasNet model that can also separate actual spectrum signals. The same performance can be achieved by applying the pretrained model but with less training data. The model obtains a competitive performance compared to currently available methods. Moreover, the method provides a solution for improving the multiplexing performance of the FBG sensor network.

Fiber Bragg Grating

Centroid

SIGNAL (programming language)

10.1117/1.oe.62.6.066104

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Citations (1)

Should Phage Therapy Be Approved in the U.S.

Benjamin James Cossette Mingxin Yu Xinyuan Wang

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