Zheng Fang

ORCID: 0000-0001-9628-5706
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About
Contact & Profiles
Research Areas
  • Perovskite Materials and Applications
  • Metamaterials and Metasurfaces Applications
  • Conducting polymers and applications
  • Plasmonic and Surface Plasmon Research
  • Terahertz technology and applications
  • Quantum Dots Synthesis And Properties
  • Metal-Organic Frameworks: Synthesis and Applications
  • Organic Electronics and Photovoltaics
  • Advanced Antenna and Metasurface Technologies
  • Chalcogenide Semiconductor Thin Films
  • Antenna Design and Analysis
  • Domain Adaptation and Few-Shot Learning
  • Polyoxometalates: Synthesis and Applications
  • Covalent Organic Framework Applications
  • Photonic Crystals and Applications
  • Dyeing and Modifying Textile Fibers
  • Real-time simulation and control systems
  • Liquid Crystal Research Advancements
  • Semiconductor materials and devices
  • Machine Learning and ELM
  • Embedded Systems and FPGA Design
  • Solid-state spectroscopy and crystallography
  • Cancer-related molecular mechanisms research
  • Advanced Image and Video Retrieval Techniques
  • Multimodal Machine Learning Applications

Huaqiao University
2022-2025

Zhejiang University
2010-2025

Ministry of Education
2025

Quzhou University
2023-2025

Materials Science & Engineering
2025

University of Illinois Urbana-Champaign
2023-2024

Shandong University of Science and Technology
2024

BOE Technology Group (China)
2019-2024

National University of Singapore
2023

University of Electronic Science and Technology of China
2020-2022

We demonstrate electrical tuning of the spectral response a Mie-resonant dielectric metasurface consisting silicon nanodisks embedded into liquid crystals. use reorientation nematic crystals in moderate applied electric field to alter anisotropic permittivity tensor around metasurface. By switching control voltage “on” and “off,” we induce large shift resonances, resulting an absolute transmission modulation up 75%. Our experimental demonstration metasurfaces paves way for new types...

10.1063/1.4976504 article EN publisher-specific-oa Applied Physics Letters 2017-02-13

Constructing 2D/3D perovskite heterojunctions is effective for the surface passivation of solar cells (PSCs). However, previous reports that studying post-treatment only physically deposits 2D on 3D perovskite, and bulk remains defective. Herein, we propose Cl2-dissolved chloroform as a multifunctional solvent concurrently constructing heterojunction inducing secondary growth grains. The mechanism how Cl2 affects performance PSCs clarified. Specifically, dissolved reacts with leading to Cl/I...

10.1038/s41467-023-39260-4 article EN cc-by Nature Communications 2023-06-22

Light-induced phase segregation is one of the main issues restricting efficiency and stability wide-bandgap perovskite solar cells (WBG PSCs). Small organic molecules with abundant functional groups can passivate various defects, therefore suppress ionic migration channels for segregation. Herein, a series pyridine-derivative isomers containing amino carboxyl are applied to modify surface. The amino, carboxyl, N-terminal pyridine in all these interact undercoordinated Pb

10.1002/adma.202311923 article EN Advanced Materials 2024-02-24

Removal of the CO2 impurities from C2H2/CO2 mixtures is an essential process to produce high-purity C2H2. Fabricating adsorbent capable discriminating these species, which have close kinetic diameters, critical for developing advanced adsorption processes. Herein, we demonstrate a strategy exploit tunability interlayer and intralayer spaces two-dimensional (2D) layered metal–organic frameworks achieve high performance separation. This indicates that symmetrical control can more efficient...

10.1021/jacs.3c06138 article EN Journal of the American Chemical Society 2023-09-04

Abstract The non‐radiative recombination at the interfaces of perovskite solar cells (PSCs) is a crucial issue that limits efficiency and stability devices. State‐of‐the‐art surface passivation strategies usually utilize alkyl ammonium halides to suppress PSCs, but their high reactivity leads transformation into 2D perovskites under working conditions, limiting effect charge transport PSCs. Herein, non‐halide ionic salt 1‐naphthylmethylammonium formate (NMACOOH) synthesized for films. In...

10.1002/aenm.202301066 article EN Advanced Energy Materials 2023-08-17

Wide-bandgap (WBG) perovskite solar cells suffer from severe non-radiative recombination and exhibit relatively large open-circuit voltage (V

10.1007/s40820-023-01090-w article EN cc-by Nano-Micro Letters 2023-04-30

Wide-bandgap perovskite solar cells (WBG-PSCs) are critical for developing perovskite/silicon tandem cells. The defect-rich surface of WBG-PSCs will lead to severe interfacial carrier loss and phase segregation, deteriorating the device's performance. Herein, we develop a reconstruction method by removing crystal nano-polishing then passivating newly exposed high-crystallinity surface. This can refresh perovskite/electron-transporter interface release residual lattice strain, improving...

10.1038/s41467-024-54925-4 article EN cc-by-nc-nd Nature Communications 2024-12-04

Passivating defects at the wide‐bandgap perovskite/C60 interface without impeding interfacial charge transport can effectively enhance efficiency of perovskite/silicon tandem solar cells (TSCs). Herein, we study impact benzene‐derivative ligands with elaborately modulated binding strength and acidity on perovskites for high‐performance TSCs. Specifically, acidity/alkalinity are preliminary tuned using different functional groups ‐PO₃H₂, ‐COOH, ‐NH₂, further finely adjusted by altering chain...

10.1002/anie.202500350 article EN Angewandte Chemie International Edition 2025-03-11

The separation challenge posed by propylene/propane mixtures arises from their nearly identical molecular sizes and physicochemical properties. Metal–organic frameworks (MOFs) have demonstrated potential in addressing this through the precision tailoring of pore surface chemistry. However, introducing modifications at level remains a considerable hurdle. This work presents an approach to reversibly tune adsorption preference zeolitic imidazolate framework-8 (ZIF-8) manipulating particle size...

10.1021/acsnano.3c11385 article EN ACS Nano 2024-01-16

10.1016/0304-386x(95)00055-l article EN Hydrometallurgy 1996-06-01

The imperfect charge behavior at the interfaces of perovskite/electron-transport layer (ETL)/transparent conducting oxide (TCO) limits further performance improvement perovskite/silicon tandem solar cells. Herein, an indium tin interlayer is deposited between ETL and TCO to address this issue. Specifically, prepared using all-physical H

10.1002/adma.202404010 article EN Advanced Materials 2024-06-27

An ultra-sensitive metamaterial terahertz absorption sensor based on centrosymmetric double F-shaped metal resonators is proposed in this study. The achieved a perfect narrow-band spectrum at 5.92 THz with high quality factor of 49.6, it showed performance the variation refractive index and thickness surface analyte sensitivity 1800 GHz/RIU figure merit value 15. Additionally, for typical biomedical n = 1.3, was 134 GHz/µm. excellent properties promise its significant practical applications...

10.3389/fphy.2020.584639 article EN cc-by Frontiers in Physics 2020-10-22

Passivating defects at the wide‐bandgap perovskite/C60 interface without impeding interfacial charge transport can effectively enhance efficiency of perovskite/silicon tandem solar cells (TSCs). Herein, we study impact benzene‐derivative ligands with elaborately modulated binding strength and acidity on perovskites for high‐performance TSCs. Specifically, acidity/alkalinity are preliminary tuned using different functional groups ‐PO₃H₂, ‐COOH, ‐NH₂, further finely adjusted by altering chain...

10.1002/ange.202500350 article EN Angewandte Chemie 2025-03-11

Abstract Quasi‐2D perovskite light‐emitting diodes (Pero‐LEDs) are promising for next‐generation lightings and displays, yet their performance remains constrained by unbalanced carrier injection non‐radiative recombination. In this study, a precise step‐wise antisolvent processing technique is presented to engineer custom‐tailored hillock‐shaped morphologies in quasi‐2D films. The controlled quasi‑2D films not only enhance electron efficiency increasing the contact area between emitting...

10.1002/adfm.202503978 article EN Advanced Functional Materials 2025-04-14

Multiple feature views arise in various important data classification scenarios. However, finding a consensus view from multiple for classifier is still challenging task. We present new framework using the multi-label correlation information to address problem of simultaneously combining and maximum margin classification. Under this framework, we propose novel algorithm that iteratively computes mapping matrices, representation, coefficients classifier. Extensive experimental evaluations...

10.1109/icdm.2012.88 article EN 2012-12-01

In many data mining applications, we often face the problem of cross-domain learning, i.e., to transfer already learned knowledge from a source domain target domain. particular, this becomes very challenging when there is no or little labeled training available in domain, which not an uncommon scenario as it expensive and certain cases even impossible obtain any real world applications. literature, though few efforts are reported attempt solve problem, solutions all rather limited making...

10.1145/2505515.2505532 article EN 2013-10-27

We herein present a high-performance ultrawideband terahertz absorber with silicon hemi-ellipsoid (SHE) on monolayer graphene that is separated by dielectric spacer from bottom metal reflector. The constitution of the absorber, which includes dielectric-mode structures and unstructured graphene, can minimize undesired optical losses in metals avoid processing. achieved an ultrawide absorption bandwidth 2 THz to more than 10 average 95.72%, relative 133%. excellent properties are owing...

10.1364/oe.401069 article EN cc-by Optics Express 2020-08-24

This article presents a fast-transient radiation-hardened low-dropout (LDO) voltage regulator integrated in standard 0.6-μm BiCMOS technology for space and other harsh radiation environment applications. The fabricated LDO consumes 150- μA quiescent current at 6-A maximum output current. An of 300 mV which corresponds to an ultralow R <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">DS(ON)</sub> resistance 500 mΩ is realized by accurate modeling....

10.1109/tns.2021.3070697 article EN IEEE Transactions on Nuclear Science 2021-04-02

Aptamers are single-stranded DNA or RNA oligos that can bind to a variety of targets with high specificity and selectivity thus widely used in the field biosensing disease therapies. generated by SELEX, which is time-consuming procedure. In this study, using silico computational tools, we attempt predict whether an aptamer interact specific protein target. We present multiple data representations pairs machine-learning-based models aptamer–protein interactions fair degree selectivity. One...

10.1021/acs.jcim.3c00713 article EN Journal of Chemical Information and Modeling 2023-12-21
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