Shuzhen Cui

Northwest Normal University

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Yan Feng

University of Chinese Academy of Sciences

Hui Peng

Northwest Normal University

Huawei Jiang

Shanghai Institute of Optics and Fine Mechanics

Kanjun Sun

Lanzhou City University

Jiaqi Zhou

Shanghai Institute of Optics and Fine Mechanics

Guofu Ma

Northwest Normal University

Lei Zhang

South China Normal University

Xin Zeng

University of Electronic Science and Technology of China

Guofu Ma

Northwest Normal University

Xin Cheng

Shanghai Institute of Optics and Fine Mechanics

Cooperative Institutions

Chinese Academy of Sciences

Northwest Normal University

University of Chinese Academy of Sciences

Shanghai Institute of Optics and Fine Mechanics

Lanzhou City University

Ministry of Education of the People's Republic of China

Huazhong University of Science and Technology

Shanxi University

Northwestern Polytechnical University

Nanjing University

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Three‐dimensional nanoporous activated carbon electrode derived from acacia wood for high‐performance supercapacitor

Frontiers in Chemistry (2022)

Hamouda Adam Hamouda Hassan Idris Abdu Qinzheng Hu Mohamed Aamer Abubaker Haikuo Lei

Herein, the novel acacia wood based hierarchical porous activated carbons (AWCs) are easily prepared, low cost and have excellent characterization, such as special biomass nanopores via structural stability and large specific surface areas. Activating agents such as KOH, ZnCl2, and H3PO4 have been used to convert acacia wood carbon into active carbons such as AWC-K, AWC-Z, and AWC-P, respectively, which are named after the activating agent. As a supercapacitor electrode, the AWC-K sample has a high yield was 69.8%, significant specific surface area of 1563.43 m2g-1 and layer thickness of 4.6 mm. Besides that, it showed specific capacitance of 224.92 F g-1 at 0.5 A g-1 in 2 M KOH as electrolyte. In addition, the AWC-K//AWC-K symmetrical supercapacitor device displays high energy density of 23.98 Wh kg-1 at 450 W kg-1 power density with excellent cycling number stability was 93.2% long lifetime of 10,000 cycles using 0.5 M Na2SO4 as electrolyte. The high electrochemistry performance mainly contributed the special biomass pores structure. Therefore, the presented approach opens new avenues in supercapacitor applications to meet energy storage.

Nanoporous

Carbon fibers

10.3389/fchem.2022.1024047

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Citations (16)

Programmable Coloration and Patterning on Reconfigurable Chiral Photonic Paper

Advanced Optical Materials (2022)

Shuzhen Cui Lang Qin Xiaojun Liu Yanlei Yu

Abstract Responsive photonic crystals are widely employed to construct rewritable paper, where patterns are written and erased repeatedly via color switching. The working principle mainly lies in the changes on the lattice constant of periodic structures, which, however, restricts the localized color tuning of the recorded patterns and thus limits multicolor information transfer. Herein, a novel strategy is reported to write, erase, and importantly to tune the colors by developing unique light‐driven cholesteric liquid crystals (CLCs) that possess self‐organized helical superstructures with two structural elements of pitch lengths (lattice constant) and helical axes (reconfiguration). Reconfiguration of the helical axes provides two high‐contrast optical states for writing and erasing by pressure and electricity, whereas precise photocontrol of the pitch lengths contributes to localized color tuning. These features primarily capitalize on the light‐driven CLC with diverse photostationary colors, which is induced by a newly designed binary chiral system and confined in the polymer dispersed liquid crystal layer. Distinct multicolor patterns are mechanically written, optically tuned, and electrically erased on the rewritable photonic paper in a programmable manner. Such photonic paper has potential to record, program, and remember optically addressed images in visualized color information and user‐interactive display technologies.

Structural Coloration

Control reconfiguration

Lattice constant

Lattice (music)

10.1002/adom.202102108

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Citations (36)

Nickel–Cobalt-Layered Double Hydroxide Nanosheets Supported on NiMoO₄ Nanorods with Enhanced Stability for Asymmetric Supercapacitors

ACS Applied Nano Materials (2022)

Shuzhen Cui Qinzheng Hu Kanjun Sun Xin Wang Faqiang Wang

Nickel molybdate (NiMoO4) is a typical pseudocapacitance material with high specific capacity. However, its inherent shortcomings of poor electrical conductivity and unstable structure caused by hindered migration of electrons and local aggregation of charges/ions seriously affect its energy-storage performance. Herein, using NiMoO4 nanorods as the nucleation matrix, a hydrothermal approach was used to fabricate NiMoO4/NiCo-layered double hydroxide (LDH) nanocomposites. The NiCo-LDH nanosheets uniformly grown on NiMoO4 nanorods not only provided a facile electron transfer channel and abundant redox active sites but also its interwoven nanosheet shell can retard the volume change and result in irreversible dissolution of the NiMoO4 core during the charge/discharge process. Therefore, the NiMoO4/NiCo-LDH nanocomposite possesses a high specific capacity (153.7 mAh g–1 at 1 A g–1) and enhanced cyclic stability. Furthermore, the NiMoO4/NiCo-LDH nanocomposite is utilized as a positive electrode of an asymmetric supercapacitor (ASC). The NiMoO4/NiCo-LDH//activated horsetall tree-based carbon (AHTC) ASC achieves a high energy density of 40.3 Wh kg–1 at 425.5 W kg–1, as well as excellent cycle performance. The synergistic effect of nanocomposites between the various metal compounds with integrated architectures provides unique insights into the development of nanocomposites for energy-storage devices.

Nanorod

Nanosheet

Layered double hydroxides

Pseudocapacitance

10.1021/acsanm.2c00131

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Citations (23)

Dielectric properties and defect chemistry of barium titanate ceramics co-doped R and Dy ions ( R =Eu, Gd, Tb)

Ceramics International (2016)

Da‐Yong Lu Shuzhen Cui Qiaoli Liu Xiu-Yun Sun

Tetragonal crystal system

10.1016/j.ceramint.2016.05.197

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Citations (28)

Versatile Raman fiber laser for sodium laser guide star

Laser & Photonics Review (2014)

Lei Zhang Huawei Jiang Shuzhen Cui Jinmeng Hu Yan Feng

Abstract Robust high‐power narrow‐linewidth lasers at 589 nm are required for sodium laser guide star adaptive optics in astronomy. A high‐power 589 nm laser based on Raman fiber amplifier is reported here, which works in both continuous‐wave and pulsed formats. In the continuous‐wave case, the laser produces more than 50 W output. In the pulsed case, the same laser produces square‐shaped pulses with tunable repetition rate (500 Hz to 10 kHz) and duration (1 ms to 30 μs). The peak power is as high as 84 W and remains constant during the tuning. The laser also emits an adjustable sideband at 1.71 GHz away from the main laser frequency for better sodium excitation. The versatility of the laser offers much flexibility in laser guide star application.

Laser linewidth

Laser Guide Star

Guide star

Raman laser

10.1002/lpor.201400055

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Citations (90)

Cascaded nonlinear optical gain modulation for coherent femtosecond pulse generation

Optics Express (2022)

Weiao Qi Jiaqi Zhou Xinru Cao Zhi Cheng Huawei Jiang

Nonlinear optical gain modulation (NOGM) is a method to generate high performance ultrafast pulses with wavelength versatility. Here we demonstrate coherent femtosecond Raman pulse generation through cascaded NOGM process experimentally. Two single-frequency seed lasers (1121 and 1178 nm) are gain-modulated by 117 nJ 1064 nm picosecond pulses in a Raman fiber amplifier. Second-order (1178 nm) Stokes pulses are generated, which have a pulse energy of 76 nJ (corresponding to an optical conversion efficiency of 65%) with a pulse duration of 621 fs (after compression). Dynamic evolution of both pump and cascaded Stokes pulses within the Raman amplifier are investigated by numerical simulations. The influences of pump pulse duration and energy are studied in detail numerically. Moreover, the simulations reveal that NOGM pulses with higher energy and shorter pulse duration could be obtained by limiting the impact of walk-off effect between pump and Raman pulses. This approach can offer a high energy and wavelength-agile ultrafast source for various applications such as optical metrology and biomedical imagining.

Pulse duration

Picosecond

10.1364/oe.452637

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Citations (11)

Regulating solvation structure and inducing Zn (0 0 2) plane by a multifunctional electrolyte additive toward dendrite suppression and long-life zinc ion hybrid capacitors

Chemical Engineering Journal (2023)

Hui Peng Xin Wang Fan Yang Zhiyuan Liu Haikuo Lei

10.1016/j.cej.2023.145864

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Citations (38)

Efficient Sodium Storage in Cu_1.96S@NC Anode Achieved by Robust S─C Bonds and Current Collector Self‐Induced Forming Cu₂S Quantum Dots

Small (2024)

Hui Peng Wenxing Miao Shuzhen Cui Zhiyuan Liu Tao Bo

Abstract Transition metal sulfides are investigation hotspots of anode material for sodium‐ion batteries (SIBs) due to their structural diversity and high storage capacity. However, they are still plagued by inevitable volume expansion during sodiation/desodiation and an unclear energy storage mechanism. Herein, a one‐step sulfidation‐carbonization strategy is proposed for in situ confined growth of Cu 1.96 S nanoparticles in nitrogen‐doped carbon (Cu 1.96 S@NC) using octahedral metal–organic framework (Cu‐BTC) as a precursor and investigate the driving effect of Cu current collector on its sodium storage. The generation of S─C bonds in Cu 1.96 S@NC avoids the volume change and structural collapse of Cu 1.96 S nanoparticles during the cycling process and improves the adsorption and transport capacity of the material for Na + . More exciting, the Cu species in the Cu current collector are self‐induced forming Cu 2 S quantum dots to enter the original anode material during the initial few charging and discharging cycles, which unique small‐size effect and abundant edge‐active sites enhance the energy storage capacity of Cu 1.96 S. Thus, the Cu 1.96 S@NC exhibits a superior first discharge capacity of 608.56 mAh g −1 at 0.2 A g −1 with an initial Coulomb efficiency (ICE) of 75.4%, as well as provides excellent rate performance and long cycle durability up to 2000 cycles.

Sulfidation

Carbon fibers

10.1002/smll.202404957

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Citations (3)

10 W low-noise green laser generation by the single-pass frequency doubling of a single-frequency fiber amplifier

Laser Physics (2020)

Xin Zeng Shuzhen Cui Jiaping Qian Xin Cheng Jinyan Dong

A high-power low-noise continuous-wave green laser at 532 nm is developed by the single-pass frequency doubling of a single-frequency 1064 nm Yb-doped fiber amplifier in a MgO-doped periodically-poled stoichiometric lithium tantalate crystal. More than 10 W is obtained with a conversion efficiency of 38.3%. The linewidth of the green laser is estimated at about 3.4 kHz according to the linewidth of 1.7 kHz of the fundamental laser. The relative intensity noise integrated from 100 Hz to 10 MHz is less than 0.03%. The laser is a promising candidate for applications in quantum simulation with ultracold atoms and the pumping of Ti:sapphire lasers etc.

Laser linewidth

Relative intensity noise

Continuous wave

Lithium tantalate

10.1088/1555-6611/ab908a

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Citations (13)

Stimulated-Brillouin-Scattering suppression in high power single frequency fiber amplifiers

Lei Zhang Shuzhen Cui Jinmeng Hu Jian‐Hua Wang Chi Liu

We report our recent works on suppression of stimulated-Brillouin-scattering in high power, single frequency, linearly polarized, 1178 nm Raman fiber amplifiers and 1064 nm ytterbium-doped fiber amplifiers by applying longitudinally varied strain in the gain fibers.

Fiber amplifier

Ytterbium

Double-clad fiber

10.1364/cleo_si.2013.cf1e.7

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