A5037049019- Perovskite Materials and Applications
- Advanced Memory and Neural Computing
- Conducting polymers and applications
- Photonic and Optical Devices
- Quantum Dots Synthesis And Properties
- Optical Network Technologies
- Ferroelectric and Negative Capacitance Devices
- Advanced Photonic Communication Systems
- Growth Hormone and Insulin-like Growth Factors
- Chalcogenide Semiconductor Thin Films
- Advanced Semiconductor Detectors and Materials
- Plasmonic and Surface Plasmon Research
- Terahertz technology and applications
- Semiconductor materials and devices
- Antimicrobial Peptides and Activities
- Hydrogen Storage and Materials
- Semiconductor Lasers and Optical Devices
- 2D Materials and Applications
- Antenna Design and Analysis
- Solid-state spectroscopy and crystallography
- Corrosion Behavior and Inhibition
- Combustion and Detonation Processes
- Metabolism, Diabetes, and Cancer
- Advanced Fiber Laser Technologies
- Pancreatic function and diabetes
Jilin Agricultural University
2009-2025
Northeastern University
2010-2024
Purple Mountain Laboratories
2023-2024
South China University of Technology
2024
China Southern Power Grid (China)
2011-2024
Anqing Normal University
2019-2024
Fujian Agriculture and Forestry University
2015-2024
Academy of Military Medical Sciences
2024
Wuhan National Laboratory for Optoelectronics
2020-2023
Stanford University
2017-2023
Recently lead halide nanocrystals (quantum dots) have been reported with potential for photovoltaic and optoelectronic applications due to their excellent luminescent properties. Herein excitonic photoluminescence (PL) excited by two-photon absorption in perovskite CsPbBr3 quantum dots (QDs) studied across a broad temperature range from 80K 380K. Two-photon has investigated coefficient up 0.085 cm/GW at room temperature. Moreover, the shows linear blue-shift (0.25meV/K) below of ~220K turned...
Abstract Perovskite solar cells (PSCs) have rapidly developed and achieved power conversion efficiencies of over 20% with diverse technical routes. Particularly, planar‐structured PSCs can be fabricated low‐temperature (≤150 °C) solution‐based processes, which is energy efficient compatible flexible substrates. Here, the efficiency stability planar are enhanced by improving interface contact between SnO 2 electron‐transport layer (ETL) perovskite layer. A biological polymer (heparin...
Abstract Perovskite solar cells have reached a power conversion efficiency over 25%, and the engineering of interface between perovskite hole transport layer (HTL) has been crucial to achieve high performance. Here we design bifunctional molecule CBz-PAI with carbazole-triphenylamine phenylammonium iodide units passivate defects at perovskite/HTL interface. Owing favourable energy level alignment perovskite, acts as shuttle HTL. This minimizes difference quasi-Fermi splitting or ‘internal’ V...
High-quality perovskite light harvesters and robust organic hole extraction layers are essential for achieving high-performing solar cells (PSCs). We introduce a phosphonic acid-functionalized fullerene derivative in mixed-cation perovskites as grain boundary modulator to consolidate the crystal structure, which enhances tolerance of film against illumination, heat, moisture. also developed redox-active radical polymer, poly(oxoammonium salt), that can effectively p-dope hole-transporting...
Abstract The self‐assembled hole transporting molecules (SAHTMs) bearing anchoring groups have been established as the layers (HTLs) for highly efficient p–i–n perovskite solar cells (PSCs), yet their stability and engineering at molecular level remain challenging. A topological design of anisotropic aligned SAHTM‐based HTLs operationally stable PSCs that exhibit exceptional solar‐to‐electric power conversion efficiencies (PCEs) is demonstrated. judiciously designed multifunctional comprise...
In this work, a high-performance, forming-free memristor based on Au/ZnO nanorods/AZO (Al-doped ZnO conductive glass) sandwich structure has been developed by rapid hydrogen annealing treatment. The Ron/Roff rate is dramatically increased from ∼10 to ∼104 after the surface Such an enhanced performance attributed introduced oxygen vacancies layer at top of nanorods. device also exhibits excellent switching and retention stability. addition, carrier migration behavior can be well interpreted...
The low-cost inorganic–organic lead halide perovskite materials become particularly promising for solar cells with high photovoltaic conversion efficiency. uniform and pinhole-free films play an important role high-performance cells. We demonstrate antisolvent treatment by controlling the PbI2 morphology to enhance photophysical properties, including absorption, crystallinity, rapid carrier transfer. fabricated show tremendous PCE improvement about 16.1% from 12% less hysteresis, retain over...
Lithium-ion batteries (LIBs) and potassium-ion (KIBs) have broad application prospects in the fields of small/medium-sized electronic products large-scale energy storage. However, fast low reversible capacity decay, poor rate capacity, slow charge storage kinetics severely affect their applications. In this work, a Bi2Se3@C rod-like architecture was synthesized through an situ selenization method using metal–organic frameworks as precursor. The micro/nanoporous carbon structure not only...
Abstract Motivation Food-derived bioactive peptides (FBPs) have demonstrated their significance in pharmaceuticals, diets and nutraceuticals, benefiting public health global ecology. While significant efforts been made to discover FBPs elucidate the underlying bioactivity mechanisms, there is lack of a systemic study sequence–structure–activity relationship large dataset. Results Here, we construct database food-derived (DFBP), containing total 6276 peptide entries 31 types from different...
The all-inorganic lead-free Cu-based halide perovskites represented by the Cs-Cu-I system, have sparked extensive interest recently due to their impressive photophysical characteristics. However, successive works on potential application in light emission diodes and photodetectors rely tiny polycrystals, which grain boundaries defects may lead performance degradation of embodied devices. Here, 2D perovskite Cs3 Cu2 I5 single crystals are epitaxially grown mica substrates, with a thickness...
Halide perovskite has attracted significant attention because of excellent optical properties. Here, we study the properties CsPbBr3 nanosheets and observe that nonlinear can be tuned by thickness. The photoluminescence (PL) absorption effects induced saturation (SA) two-photon (TPA) in with different thicknesses (from 104.6 to 195.4 nm) have been studied. PL intensity increases nearly three times changing from thinnest one under same excitation condition. Moreover, phenomenon takes place no...
Excited-state dynamics of CsPbBr3 quantum dots (QDs) are studied through femtosecond transient absorption spectroscopy measurements. The band-edge recombination is dominated by a single exciton process at low excitation density (<0.1 QD−1). While density-dependent quadratic decay found in early probe high (>0.25 QD−1), which attributed to exciton–exciton annihilation. Moreover, ultrafast biexcitons and slow trap-state excitons also with resonant energy slightly below the band edge. As...
Abstract Recently, the actively controlled meta‐atoms have been employed to manipulate terahertz (THz) waves allowing for implementation of many functionalities operating. A salient example such systems is electromagnetically induced transparency (EIT) metaphotonic device, which opens up a new avenue THz manipulations. However, these devices are currently limited be tuned at given frequency, severely impedes their practical applications. Here, novel photo‐active proposed, whose EIT resonance...
A multifunctional interface modulator GO/(CsPbBr 3 QD) composite decreases resistive losses of perovskite solar modules by enhanced charge transport and decreased carrier recombination, as well inhibiting ion/molecule diffusion.
For fabricating high-performance perovskite solar cells (PSCs) and modules, it is crucial to obtain high-quality (PVSK) films efficient interfacial charge transport. Here, we introduce a synergistic strategy combining [6,6]-4-fluorophenyl-C61-butyric acid (FPAC60) self-assembled monolayer (SAM) bis-adduct 2,5-(dimethyl ester) C60 fulleropyrrolidine (bis-DMEC60) additive an device. The FPAC60 SAM can not only promote transport passivate defects at the SnO2/PVSK buried interface but also serve...
A compact highly sensitive microfiber coupler based reflective micro-force sensor is presented. The device fabricated by fusing two twisted optical fibers and then connecting of the pigtails to form a Sagnac loop. has high force sensitivity ~3754 nm/N which three orders magnitude larger than traditional fiber sensors, low detection limit ~1.6 µN. good repeatability also shown in this paper.
Abstract The integration of photoactive semiconductors exhibiting strong light–matter interactions into functional unit meta‐atoms facilitates effective approaches to dynamically manipulate terahertz (THz) waves. Here, a new metaphotonic modulator is proposed and comprehensively studied, which demonstrates extensive tunability the resonant frequency phase with merit ultrafast photoswitching. Specifically, parallel silicon (Si) bridges are embedded in metasurfaces reinforce connection...