Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Yunji Park"'
Publikováno v:
Journal of Alloys and Compounds. 803:135-144
We report the effects of various dopants (Al, Co, and Cu) on the acetone-sensing properties of ZnO nanoparticles (NPs) for breath-analyzer applications. Among the different sensing materials, the Al-doped ZnO NPs exhibited the highest sensitivity tow
Autor:
Yunji Park, Wooyoung Lee, Hwaebong Jung, Ran Yoo, Jun Ho Lee, Seung ryull Park, Hyun Sook Lee
Publikováno v:
Sensors and Actuators B: Chemical. 290:258-266
We report the quantum-size effect on the sensing properties of ZnO nanoparticles for the detection of isoprene. For this purpose, two types of ZnO particles with different sizes, including nanoparticles (NPs, ˜25 nm) and quantum dots (QDs, ˜5 nm),
Publikováno v:
Sensors and Actuators B: Chemical, 283
The development of chemoresistive gas sensors for environmental and industrial air monitoring as well as medical breath analysis is investigated. Flame-made ZnO nanoparticles (NPs) doped with 1 at% Aluminum exhibited higher sensing performance (respo
Autor:
Sunglyul Maeng, Myung Jong Kim, Yunji Park, Wooyoung Lee, Thang Viet Pham, Ran Yoo, Hyun Sook Lee, Sang Hyun Jin, Aran Koo, Wonkyung Kim
Publikováno v:
Sensors
Volume 19
Issue 16
Sensors, Vol 19, Iss 16, p 3565 (2019)
Sensors (Basel, Switzerland)
Volume 19
Issue 16
Sensors, Vol 19, Iss 16, p 3565 (2019)
Sensors (Basel, Switzerland)
N-containing gaseous compounds, such as trimethylamine (TMA), triethylamine (TEA), ammonia (NH3), nitrogen monoxide (NO), and nitrogen dioxide (NO2) exude irritating odors and are harmful to the human respiratory system at high concentrations. In thi
Autor:
Jun Ho Lee, Ran Yoo, Yunji Park, Wonkyung Kim, Wooyoung Lee, Hwaebong Jung, Min Sun Park, Seungryol Park, Hyun Sook Lee
Publikováno v:
Sensors and Actuators B: Chemical. 299:126992
We report on the doping effect on the sensing properties of ZnO quantum dots (QDs) for the detection of acetylene. We found that In-doped ZnO (IZO) QDs exhibited a better sensing performance to 10 ppm acetylene than undoped ZnO (ZO) QDs and Al-doped