WS2 thin film based quartz crystal microbalance gas sensor for dimethyl methylphosphonate detection at room temperature

Synthetic diamond has remarkable properties comparable with natural diamond and hence is a very promising material for many various applications (sensors, heat sink, optical mirrors, cold cathode, tissue engineering, etc.). Nowadays, deposition of diamond films is normally employed in chemical vapor deposition (CVD) usually at high temperatures (800900 °C), what limit its application to high melting substrates. Gravimetric (mass) sensors belong to the major categories of chemical sensors and the most common type of mass sensor is the bulk acoustic quartz crystal microbalance (QCM). This contribution deals with a nanocrystalline diamond (NCD) growth from the H2/CH4/CO2gas mixture at low temperature (400 °C) by pulsed linear antenna microwave plasma system on 10 MHz circular AT-cut quartz resonators substrate. Gas sensor based on the NCD-coated QCM was developed for detection of ammonia (NH3) at room temperature. Measurements not only confirmed the functionality of this first published NCD-coated QCM sensor, but in addition its sensitivity was twofold to a virgin QCM sensor with a gold active layer.

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A room temperature supramolecular-based quartz crystal microbalance (QCM) methane gas sensor

Sensors and Actuators B Chemical ◽

10.1016/j.snb.2009.06.012 ◽

2009 ◽

Vol 141 (1) ◽

pp. 104-108 ◽

Cited By ~ 71

Author(s):

Ping Sun ◽

Yadong Jiang ◽

Guangzhong Xie ◽

Xiaosong Du ◽

Jia Hu

Keyword(s):

Gas Sensor ◽

Quartz Crystal Microbalance ◽

Room Temperature ◽

Quartz Crystal ◽

Methane Gas

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Room temperature ammonia gas sensor based on V2O5 nanoplatelets/Quartz crystal microbalance

Applied Physics A ◽

10.1007/s00339-020-04129-6 ◽

2020 ◽

Vol 126 (12) ◽

Author(s):

Malika Berouaken ◽

Lamia Talbi ◽

Chafiaa. Yaddadene ◽

Mohamed. Maoudj ◽

Hamid Menari ◽

...

Keyword(s):

Gas Sensor ◽

Quartz Crystal Microbalance ◽

Room Temperature ◽

Quartz Crystal ◽

Ammonia Gas

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Humidity Sensitive Properties of Graphene Oxide Investigated by Quartz Crystal Microbalance

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1051.85 ◽

2014 ◽

Vol 1051 ◽

pp. 85-89 ◽

Cited By ~ 1

Author(s):

Hui Yao Yu ◽

Ying Long Yao ◽

Xiao Hua Wang

Keyword(s):

Thin Film ◽

Aqueous Solution ◽

Graphene Oxide ◽

Relative Humidity ◽

Quartz Crystal Microbalance ◽

Room Temperature ◽

Quartz Crystal ◽

Oxide Thin Film ◽

Sensing Material ◽

Maximum Humidity

Graphene oxide has been studied as sensing material for the humidity detection in this paper. At room temperature, graphene oxide was dissolved in water to prepare graphene oxide aqueous solution. This aqueous solution was distributed on the electrode surface of quartz crystal microbalance to form a thin film for humidity detection. The results of the experiment showed that the quartz crystal microbalance sensors with graphene oxide film have good response to the change of humidity. The maximum humidity sensitivity, during the humidity ranging from 10% to 90%RH (relative humidity), has achieved ~54Hz/%RH (relative humidity). The quartz crystal microbalance sensors with graphene oxide thin film have good stability and reproducibility properties. All results implied that the graphene oxide was a potential humidity sensing material for practical use.

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