Micro-Quartz Crystal Tuning Fork-Based Photodetector Array for Trace Gas Detection

doi:10.1021/acs.analchem.3c00318

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	Micro-Quartz Crystal Tuning Fork-Based Photodetector Array for Trace Gas Detection
	L. Xu, K. Liu, J. Liang, J. Li and S. Zhou
	2023
发表期刊	Analytical Chemistry
ISSN	00032700
卷号	95 期号:17 页码:6955-6961
摘要	In this paper, a micro-quartz crystal tuning fork (M-QCTF) was first demonstrated for developing a low-cost, highly sensitive quartz tuning fork photodetector array for spectroscopic applications. A gas sensing system based on the M-QCTF photodetector and highly sensitive wavelength modulation spectroscopy was developed. Typically, an atmospheric greenhouse gas methane (CH4) molecule was selected as the target analyte for evaluating the M-QCTF and standard commercial QCTF detectivity. The results indicate that the M-QCTF photodetector exhibits ∼3.3 times sensitivity enhancement compared to the standard commercial QCTF. The long-term stability was evaluated by using the Allan deviation analysis method; a minimum detection limit of 1.2 ppm was achieved with an optimal integration time of 85 s, and the corresponding normalized noise equivalent absorption coefficient was calculated to be 4.45 × 10-10 cm-1 W/√Hz. Finally, a two-M-QCTF array detection scheme was experimentally demonstrated, and a signal-to-noise ratio enhancement factor of more than 1.7 times compared to that achieved using a single M-QCTF photodetector was realized, which proves a great potential for developing ultra-sensitive quartz tuning fork photodetector arrays for various applications. © 2023 American Chemical Society.
DOI	10.1021/acs.analchem.3c00318
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收录类别	sci ; ei
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/68059
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	L. Xu, K. Liu, J. Liang, J. Li and S. Zhou. Micro-Quartz Crystal Tuning Fork-Based Photodetector Array for Trace Gas Detection[J]. Analytical Chemistry,2023,95(17):6955-6961.
APA	L. Xu, K. Liu, J. Liang, J. Li and S. Zhou.(2023).Micro-Quartz Crystal Tuning Fork-Based Photodetector Array for Trace Gas Detection.Analytical Chemistry,95(17),6955-6961.
MLA	L. Xu, K. Liu, J. Liang, J. Li and S. Zhou."Micro-Quartz Crystal Tuning Fork-Based Photodetector Array for Trace Gas Detection".Analytical Chemistry 95.17(2023):6955-6961.

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