Jingwen Wu

Hollow-Core Fiber Fabry–Pérot Photothermal Gas Sensor: Temperature-Dependent Behavior

Jingwen Wu, Pengcheng Zhao, Haihong Bao, Wei Jin

Photothermal spectroscopy is a promising gas detection technique, providing high selectivity, high sensitivity, and wide dynamic range. Here, we systematically investigate the temperature-dependent behavior of the photothermal signal in a compact hollow-core fiber gas sensor in a Fabry–Pérot cavity configuration. Temperature affects …

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Operando monitoring of gassing dynamics in lithium-ion batteries with optical fiber photothermal spectroscopy

Tianye Zheng, Haihong Bao, Feifan Chen, Jingwen Wu et autres

Gaseous molecules are an inherent byproduct of (electro-)chemical reactions in lithium-ion battery cells during both formation cycles and long-term operation. While monitoring gas evolution can help understand battery chemistry and predict battery performance, the complex nature of gas dynamics makes conventional mass …

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Operando monitoring of gassing dynamics in lithium-ion batteries with optical fiber photothermal spectroscopy

Tianye Zheng, Haihong Bao, Feifan Chen, Jingwen Wu et autres

Gas evolution is an inherent aspect in batteries. We present an optical fiber spectroscopic technique for operando gas sensing, enabling comprehensive mechanistic studies in batteries and broader electrochemical energy systems.

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Grating couplers beyond silicon TPA wavelengths based on MPW

Weicheng Chen, Jingwen Wu, Dian Wan, Jie Wang et autres

Abstract Silicon photonic integrated circuits (PICs) at 2.2–2.5 μm wavelengths have great potential in applications of nonlinear optics, spectroscopy, and light detection and ranging, due to the merits of negligible two-photon absorption and moderate Rayleigh scattering from the waveguide sidewall roughness. As …

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Assessment of the solar energy accommodation capability of the district integrated energy systems considering the transmission delay of the heating network

Wei Wei, Jingwen Wu, Yunfei Mu, Jianzhong Wu et autres

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On-Chip Optical Gas Sensors Based on Group-IV Materials

Jingwen Wu, Gongcheng Yue, Weicheng Chen, Zhengkun Xing et autres

Compact and smart optical gas sensors have attracted significant attention over the past few decades. Among the materials used for developing such gas sensors, group-IV materials, including silicon, germanium, carbon allotropes, and their compounds, are considered the most promising candidates. By virtue …

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Day Ahead Economic Dispatch of District Integrated Energy Service Providers under Energy Market

Lei Guo, Linyu Wang, Wei Wei, Jingwen Wu

Integrated energy marketization is the future form of the electricity market. The district integrated energy service providers are one of the main subjects in integrated energy market. The influence of the integrated energy network is fully considered in this paper. A second-order …

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International Comparison of FAR Awards and TDR Application

Jingwen Wu

The concept of floor area ratio(FAR) awards and transfer of denelopment right(TDR) was explained firstly,and then by analyzing the practical experience of awards and in other countries and their effect on forming open space,protecting historical relics and ecological environment,their practical application meaning …

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