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Chenying He

As seen in: ACS Publications
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Articles

An Ionic Assisted Enhancement Strategy Enabled High Performance Flexible Pressure-Temperature Dual Sensor

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By Chenying He, Lie Wu, Guoqiang Gu, Lei Wei
| ACS Publications
Download Hi-Res ImageDownload to MS-PowerPointCite This:Nano Lett. 2024, XXXX, XXX Terms & Conditions Most electronic Supporting Information files are available without a subscription to ACS Web Editions. Such files may be downloaded by article for research use (if there is a public use license linked to the relevant article, that license may permit other uses).
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Heteropolyacids: An Ultrasensitive Ionic Volume-Enhanced Raman Scattering Platform

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By Chenying He, Ting Wen, Yuanao Zhang, Shenghai Pei
| dx.doi.org
Abstract Surface-enhanced Raman scattering (SERS) is regarded as the most direct and powerful tool to identify chemical fingerprints. However, current SERS substrate materials still face some critical challenges, including low molecular utilization efficiency and low selectivity. Herein, a novel oxygen vacancy heteropolyacid─H10Fe3Mo21O51 (HFMO)─is developed as a high-performance volume-enhanced Raman scattering (VERS)-active platform.
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Highly sensitive and stable SERS substrate using hybrid tungsten dioxide/carbon ultrathin nanowire beams

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By Chenying He, Hua Bai, Wencai Yi, Jing-yao Liu
| Royal Society of Chemistry Verified
Compared to noble metals, semiconductor surface enhanced Raman spectrum (SERS) substrates are much cheaper, but their poor sensitivity and stability limits their applications. Here, we report an remarkable enhancement of Raman signals observed from hybrid WO2/C ultrathin nanowire beams. The outstanding enhancement factor (EF) of 1.3 × 106 is achieved, and the lowest detection limit is up to 10-8 M.
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