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Doctor Tang Yonglian Published Two Articles on Famous International Journals

published: 2014-10-28 11:27:00       hits: 

Recently, Yongliang Tang, a doctoral student, grade one, in Prof. Xiaotao Zu’s group in School of Physical Electronics and Institute of Fundamental and Frontier Sciences in UESTC has published two excellent articles in “Journal of Hazardous Materials” (section 1 of engineering technology) and “Sensors and Actuators B” (section 1 of engineering technology), which belong to publishing house Elsevier. The two articles shows Dr. Tang’s newest research results focusing on improving the sensitivity, selectivity and stability of the surface acoustic wave (SAW) sensors. In the two articles, UESTC is the first affiliation.

The article named ‘Ammonia gas sensors based on ZnO/SiO2 bi-layer nanofilms on ST-cut quartz surface acoustic wave devices’ is published on “Sensors and Actuators B”. This article reveals that the conductivity of sensing films, which has a significant influence on the sensitivity of the SAW sensor, can be adjusted by changing the thickness of the ZnO/SiO2 bi-layer nanofilm. This result provides afeasible method to improve the sensitivity of the SAW sensor.

The article named ‘Highly sensitive room-temperature surface acoustic wave (SAW) ammonia sensors based on Co3O4/SiO2 composite films’ is published on “Journal of Hazardous Materials”. In this article, the existence of SiO2 nanoparticles is found to increase the concentration of the absorbed ammonia on the surface of Co3O4/SiO2 composite film, which leaded to an enhancement on the sensitivity and selectivity of the SAW sensor, due to the condensation effect of SiO2 nanoparticles promoted by ammonia gas.

Surface acoustic wave (SAW) sensors have attracted lots of attention due to its advantages of high sensitivity, high speed, good reliability, high accuracy and low cost. These two works, which offer a new thought and method for improving the sensitivity and selectivity of SAW sensors, are significantly meaningful for the application of SAW sensors.

Yongliang Tang is a doctoral student, grade one. He worked with Prof. Zu since 2011. His research interests include the simulation, fabrication, application of sensors, and new materials.

Prof. Xiaotao Zu's group has published more than 300 articles in many famous journals such as "Physical Review Letters", "Nano Letters", "ACS Nano", "Nanoscale" and so on, in recent 10 years, and the non-self-cite times of these articles are beyond 4000.

"Journal of Hazardous Materials", which has an impact factor of 4.331, is the authoritative journal in the area of detection and degradation of hazardous materials. “Sensors and Actuators B”, which has an impact factor of 3.84, is the authoritative journal in the area of the chemical sensor.

Article links: (Sens. Actuators B: Chem. 201, 114-121 (2014)) Hazard. Mater. 280, 127-133 (2014))

Chen Keyu