Hybrid Photonic Cavity with Metal-Organic Framework Coatings for the Ultra-Sensitive Detection of Volatile Organic Compounds with High Immunity to Humidity

被引：66

作者：

Tao, Jifang ^{[1
]}

Wang, Xuerui ^{[2
]}

Sun, Tao ^{[1
]}

Cai, Hong ^{[1
]}

Wang, Yuxiang ^{[2
]}

Lin, Tong ^{[2
]}

Fu, Dongliang ^{[1
]}

Ting, Lennon Lee Yao ^{[1
]}

Gu, Yuandong ^{[1
]}

Zhao, Dan ^{[2
]}

机构：

[1] ASTAR, Inst Microelect, Singapore 138634, Singapore

[2] Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 117585, Singapore

来源：

SCIENTIFIC REPORTS | 2017年 / 7卷

关键词：

INDOOR AIR-QUALITY; GAS; SENSORS; PRECONCENTRATION; HEALTH; TEMPERATURE; DIFFUSION; WATER; NO2;

D O I：

10.1038/srep41640

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Detection of volatile organic compounds (VOCs) at parts-per-billion (ppb) level is one of the most challenging tasks for miniature gas sensors because of the high requirement on sensitivity and the possible interference from moisture. Herein, for the first time, we present a novel platform based on a hybrid photonic cavity with metal-organic framework (MOF) coatings for VOCs detection. We have fabricated a compact gas sensor with detection limitation ranging from 29 to 99 ppb for various VOCs including styrene, toluene, benzene, propylene and methanol. Compared to the photonic cavity without coating, the MOF-coated solution exhibits a sensitivity enhancement factor up to 1000. The present results have demonstrated great potential of MOF-coated photonic resonators in miniaturized gas sensing applications.

引用

页数：8

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