A Room-Temperature Dual-Gas Humidity/Ammonia Sensor Based on Gallium Oxide for Breath Analysis

被引：0

作者：

Dai, Jianxun ^{[1
,2
,3
]}

Ye, Taisen ^{[2
]}

Zhan, Xuedong ^{[2
]}

Han, Shancheng ^{[2
]}

Ma, Bin ^{[4
,5
]}

Hai, Hongyan ^{[1
]}

Liu, Yanhong ^{[6
]}

Tao, Pengcheng ^{[2
]}

Li, Dawei ^{[2
]}

Wang, Fengli ^{[1
]}

Han, Rong ^{[2
]}

Zhang, Zhiguo ^{[3
]}

Chen, Yue ^{[4
,5
]}

Zheng, Hao ^{[3
]}

Geng, Lili ^{[1
]}

Zhang, Rui ^{[4
,7
]}

Huang, Huolin ^{[2
,4
]}

机构：

[1] Dalian Univ Technol, Cent Hosp, Dalian 116024, Peoples R China

[2] Dalian Univ Technol, Sch Optoelect Engn & Instrumentat Sci, Dalian 116024, Peoples R China

[3] Shenyang Acad Instrumentat Sci Co Ltd, Shenyang 110043, Peoples R China

[4] Dalian Univ Technol, Canc Hosp, Dalian 116024, Peoples R China

[5] Liaoning Canc Hosp & Inst, Shenyang 110042, Peoples R China

[6] Dalian Univ Technol, Sch Phys, Dalian 116024, Peoples R China

[7] Dalian Univ Technol, Sch Environm Sci & Technol, Key Lab Ind Ecol & Environm Engn, Dalian 116024, Peoples R China

来源：

IEEE SENSORS JOURNAL | 2025年 / 25卷 / 06期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Sensors; Humidity; Gallium; Monitoring; Chronic kidney disease; Ammonia; Gas detectors; Stability analysis; Annealing; Temperature sensors; Ammonia sensing; exhaled breath analysis; humidity sensing; room-temperature detection; THIN-FILM;

D O I：

10.1109/JSEN.2025.3535551

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The analysis of human breath to detect both respiration state and breath biomarkers is of great importance in the fields of exhaled noninvasive breath monitoring and diagnosis. Thus, we have elaborately synthesized gallium oxide (Ga2O3) with different oxygen species as humidity and gas sensitive materials to monitor respiratory function and ammonia (NH3). In this work, the sensing characteristics and breath monitoring applications of the humidity/ammonia sensor based on the Ga2O3 are systematically investigated. The humidity sensor demonstrated high responsivity (over three orders of magnitude), low humidity hysteresis (1.83%), and good long-term stability. The ammonia sensor has a response of 1.2% to 2-ppm ammonia at 70% relative humidity. To investigate the potential application of the sensor in detecting ammonia in exhaled gas, a simulated breath test was conducted.

引用

页码：9384 / 9392

页数：9

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