Qianjin Wang

Collaborative Innovation Center of Advanced Microstructures

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Yong‐yuan Zhu

Collaborative Innovation Center of Advanced Microstructures

Qiuhong Tan

Yunnan Normal University

Yingkai Liu

Yunnan Normal University

Cheng‐ping Huang

Nanjing Tech University

Shan Wu

Nanjing University of Aeronautics and Astronautics

Lin Zhou

Collaborative Innovation Center of Advanced Microstructures

Xiao‐gang Yin

Nanjing University of Aeronautics and Astronautics

Peizhi Yang

Yunnan Normal University

Jiaqi Li

Capital Normal University

Qing Jiang

Nanjing Drum Tower Hospital

Cooperative Institutions

Nanjing University

200

Collaborative Innovation Center of Advanced Microstructures

130

Chinese Academy of Sciences

114

National Laboratory of Solid State Microstructures

Zhejiang University

Nanjing Drum Tower Hospital

Southeast University

Peking University

Yunnan Normal University

Central South University

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Enhanced Piezoelectric and Pyroelectric Response in P(Vdf-Trfe) Based Sensor Via X-Ray Irradiation

Bin Yang Hong Zhang Qianjin Wang Bo Li Weishu Liu

Given the inherent limitations of sensing technologies, this study aimed to investigate the transformative effect of high-energy X-rays on the enhancement of piezoelectric and pyroelectric properties of poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-TrFE), 70/30%) films. Our investigation showed a remarkable improvement in the pyroelectric and piezoelectric responses in the P(VDF-TrFE) films after irradiation. When irradiated with 1 Mrad X-rays, the P(VDF-TrFE) films exhibit a pyroelectric coefficient of 252 μC m-2 K-1, which is three times higher than that of non-irradiated films, and the piezoelectric coefficient increased to 33 pC N-1. The sensitivity to temperature changes was measured to be 15.66 V K-1 from 0.05 K to 5 K, respectively. In addition, the pressure sensitivity in the range from 0.025 to 10 kPa and 10 to 50 kPa were determined to be 3.62 V kPa-1 and 0.63 V kPa-1. This considerable increase in performance is primarily due to a significant improvement in crystallinity, which increased from 45% to 80%. Consequently, our results strongly suggest that the application of X-rays to P(VDF-TrFE) films is a reliable and effective method to improve both pyroelectric and piezoelectric responses.

10.2139/ssrn.4679105

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Vertically Oriented and Interpenetrating CuSe Nanosheet Films with Open Channels for Flexible All-Solid-State Supercapacitors

ACS Omega (2017)

Lingzhi Li Jiangfeng Gong Chunyan Liu Yazhou Tian Min Han

As a p-type multifunctional semiconductor, CuSe nanostructures show great promise in optoelectronic, sensing, and photocatalytic fields. Although great progress has been achieved, controllable synthesis of CuSe nanosheets (NSs) with a desirable spacial orientation and open frameworks remains a challenge, and their use in supercapacitors (SCs) has not been explored. Herein, a highly vertically oriented and interpenetrating CuSe NS film with open channels is deposited on an Au-coated polyethylene terephthalate substrate. Such CuSe NS films exhibit high specific capacitance (209 F g-1) and can be used as a carbon black- and binder-free electrode to construct flexible, symmetric all-solid-state SCs, using polyvinyl alcohol-LiCl gel as the solid electrolyte. A device fabricated with such CuSe NS films exhibits high volumetric specific capacitance (30.17 mF cm-3), good cycling stability, excellent flexibility, and desirable mechanical stability. The excellent performance of such devices results from the vertically oriented and interpenetrating configuration of CuSe NS building blocks, which can increase the available surface and facilitate the diffusion of electrolyte ions. Moreover, as a prototype for application, three such solid devices in series can be used to light up a red light-emitting diode.

Nanosheet

10.1021/acsomega.6b00535

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Citations (53)

Tunable interface properties of Janus MoSi2N2P2/graphene van der Waals heterostructure: Implications for electronic and optoelectronic devices

Surfaces and Interfaces (2024)

Ming Jiang Dai Linping Yu Xiaobo Feng Qianjin Wang Xin He

Interface (matter)

10.1016/j.surfin.2024.105608

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A chip-level integrated optical spectrometer based on pit interferometers

Tao Yang Yuchao Chen Xing’ao Li Wei Huang Qianjin Wang

We present a chip-level integrated optical spectrometer based on pit interferometers. The spectrometer has the advantages of small size, low cost, high resolution, and wide range of spectral measurements as compared with conventional spectrometers.

Imaging spectrometer

Integrated Optics

Free spectral range

10.1109/edssc.2013.6628188

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Microfiber-probe-based ultrasmall interferometric sensor

Optics Letters (2010)

Jun-long Kou Jing Feng Qianjin Wang Fei Xu Yanqing Lu

We report an ultrasmall microfiber-probe-based reflective interferometer for highly sensitive liquid refractive index measurement. It has a 3.5μm micronotch cavity fabricated by focused ion beam micromachining. A sensitivity of 110nm/RIU (refractive index unit) in liquid is achieved with over 20dB extinction ratio. Theoretical analysis shows this kind of device is a hybrid of Fabry–Perot and modal interferometers. In comparison with normal fiber interferometers, this probe sensor is very compact, stable, and cheap, offering great potentials for detecting inside sub-wavelength bubbles, droplets, or biocells.

Microfiber

10.1364/ol.35.002308

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Citations (79)

Fanolike resonance due to plasmon excitation in linear chains of metal bumps

Optics Express (2011)

Xiao‐gang Yin Cheng‐ping Huang Qianjin Wang Wanxia Huang Lin Zhou

We report the transmission anomaly in a modified slit grating, which is dressed, on the slit sidewalls, with the linear chains of metal bumps. An asymmetric lineshape, which is characteristic of the Fano resonance, has been found in a narrow frequency range of the spectrum. The effect can be attributed to the interference between nonresonant background transmission and resonant plasmonic wave excitation in the linear chains. The dispersion of chain plasmon mode has been suggested, enabling the dynamic tuning of spectral position of the Fano effect.

Fano resonance

10.1364/oe.19.010485

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Hybrid of surface plasmon polaritons and waveguide resonances through double-layer metallic gratings

Journal of the Optical Society of America B (2011)

Lin Zhou Qianjin Wang Shan Wu Wanxia Huang Cheng‐ping Huang

The optical properties of double-layer close-packed metallic gratings have been systematically studied. Apart from the optical transmission enhancement, we report the double-mode oscillation as the metal layer thickness increases beyond a critical value, which is related to the hybrid between two types of surface plasmon polariton and different orders of waveguide resonance inside the air cavity. To further improve our understanding of the physical mechanism involved, a field-interference mechanism of dipole array, induced by both lateral and vertical plasmon coupling, has been employed.

Waveguide

Localized surface plasmon

Oscillation (cell signaling)

10.1364/josab.28.000587

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Simulation analysis and optimization research on airflow organization in typical ship meeting rooms

Zhihao Xie Qianjin Wang Wenli Duan Jialei Gu Shuaiju Wei

10.1117/12.3032942

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Broadband Excitonic Near-Infrared Photoresponse at the van der Waals Heterostructure/Metal Interface