scholarly journals Selective and reversible ammonia gas detection with nanoporous film functionalized silicon photonic micro-ring resonator

2012 ◽  
Vol 20 (11) ◽  
pp. 11855 ◽  
Author(s):  
Nebiyu A. Yebo ◽  
Sreeprasanth Pulinthanathu Sree ◽  
Elisabeth Levrau ◽  
Christophe Detavernier ◽  
Zeger Hens ◽  
...  
Keyword(s):  
Ring Resonator ◽  
Gas Detection ◽  
Ammonia Gas ◽  
Nanoporous Film ◽  
Silicon Photonic

Ammonia Gas Detection Using an Optically Sensitive Hybrid Organic–Inorganic Multilayer Nanoporous Film

2013 ◽  
Vol 19 (2) ◽  
pp. 415-419
Author(s):  
Wataru Yasukochi ◽  
Tao Wang ◽  
Suguru Kodaira ◽  
Sergiy Korposh ◽  
Roman Selyanchyn ◽  
...  
Keyword(s):  
Gas Detection ◽  
Ammonia Gas ◽  
Nanoporous Film

Design of ZnO/N-Doped Graphene Nanohybrid Incorporated RF Complementary Split Ring Resonator Sensor for Ammonia Gas Detection

2019 ◽  
Vol 19 (18) ◽  
pp. 7968-7975 ◽  
Author(s):  
Sandeep Kumar Singh ◽  
Nilesh Kumar Tiwari ◽  
Amit Kumar Yadav ◽  
M. Jaleel Akhtar ◽  
Kamal K. Kar
Keyword(s):  
Ring Resonator ◽  
Split Ring Resonator ◽  
Gas Detection ◽  
Split Ring ◽  
Ammonia Gas ◽  
Complementary Split Ring Resonator ◽  
Doped Graphene

scholarly journals Chemically functionalised suspended-core fibre for ammonia gas detection

2021 ◽  
pp. 1-1
Author(s):  
Liangliang Liu ◽  
Zijuan Tang ◽  
Chenyang He ◽  
Serhiy Korposh ◽  
Shuqin Lou ◽  
...  
Keyword(s):  
Gas Detection ◽  
Ammonia Gas ◽  
Core Fibre

scholarly journals Silicon photonic temperature sensor
employing a ring resonator manufactured
using a standard CMOS process

2010 ◽  
Vol 18 (21) ◽  
pp. 22215 ◽  
Author(s):  
Gun-Duk Kim ◽  
Hak-Soon Lee ◽  
Chang-Hyun Park ◽  
Sang-Shin Lee ◽  
Boo Tak Lim ◽  
...  
Keyword(s):  
Temperature Sensor ◽  
Ring Resonator ◽  
Cmos Process ◽  
Standard Cmos Process ◽  
Silicon Photonic

Zinc(II)porphyrin-poly(lactic acid) nanoporous fiber membrane for ammonia gas detection

2016 ◽  
Vol 23 (4) ◽  
pp. 911-917 ◽  
Author(s):  
Min Hu ◽  
Weimin Kang ◽  
Zongjie Li ◽  
Shi Jie ◽  
Yixia Zhao ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Gas Detection ◽  
Poly Lactic Acid ◽  
Fiber Membrane ◽  
Ammonia Gas

High Sensitivity Ammonia Gas Detection with Hollow-Core Photonic Bandgap Fibers Reference Gas Cavity

2016 ◽  
Vol 43 (3) ◽  
pp. 0305001
Author(s):  
冯巧玲 Feng Qiaoling ◽  
姜萌 Jiang Meng ◽  
王学锋 Wang Xuefeng ◽  
梁鹄 Liang Hu ◽  
王聪颖 Wang Congying ◽  
...  
Keyword(s):  
Photonic Bandgap ◽  
High Sensitivity ◽  
Gas Detection ◽  
Hollow Core ◽  
Ammonia Gas ◽  
Photonic Bandgap Fibers ◽  
Gas Cavity

Carbon nanofibers functionalized with amide group for ammonia gas detection

2019 ◽  
Author(s):  
Nurjahirah Janudin ◽  
Norli Abdullah ◽  
Wan Md Zin Wan Yunus ◽  
Faizah Md Yasin ◽  
Mohd Hanif Yaacob ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
Amide Group ◽  
Gas Detection ◽  
Ammonia Gas

scholarly journals Nanostructured ZnO/Ag Film Prepared by Magnetron Sputtering Method for Fast Response of Ammonia Gas Detection

Molecules ◽  
2020 ◽  
Vol 25 (8) ◽  
pp. 1899 ◽  
Author(s):  
Yiran Zheng ◽  
Min Li ◽  
Xiaoyan Wen ◽  
Ho-Pui Ho ◽  
Haifei Lu
Keyword(s):  
Magnetron Sputtering ◽  
Thermal Annealing ◽  
Physical Vapor Deposition ◽  
Gas Sensing ◽  
Volume Ratio ◽  
Fast Response ◽  
Gas Detection ◽  
Zno Films ◽  
Zno Film ◽  
Ammonia Gas

Possessing a large surface-to-volume ratio is significant to the sensitive gas detection of semiconductor nanostructures. Here, we propose a fast-response ammonia gas sensor based on porous nanostructured zinc oxide (ZnO) film, which is fabricated through physical vapor deposition and subsequent thermal annealing. In general, an extremely thin silver (Ag) layer (1, 3, 5 nm) and a 100 nm ZnO film are sequentially deposited on the SiO2/Si substrate by a magnetron sputtering method. The porous nanostructure of ZnO film is formed after thermal annealing contributed by the diffusion of Ag among ZnO crystal grains and the expansion of the ZnO film. Different thicknesses of the Ag layer help the formation of different sizes and quantities of hollows uniformly distributed in the ZnO film, which is demonstrated to hold superior gas sensing abilities than the compact ZnO film. The responses of the different porous ZnO films were also investigated in the ammonia concentration range of 10 to 300 ppm. Experimental results demonstrate that the ZnO/Ag(3 nm) sensor possesses a good electrical resistance variation of 85.74% after exposing the sample to 300 ppm ammonia gas for 310 s. Interestingly, a fast response of 61.18% in 60 s for 300 ppm ammonia gas has been achieved from the ZnO/Ag(5 nm) sensor, which costs only 6 s for the response increase to 10%. Therefore, this controllable, porous, nanostructured ZnO film maintaining a sensitive gas response, fabricated by the physical deposition approach, will be of great interest to the gas-sensing community.

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