Gas-Sensing Properties of ZnO Nanorods at Room Temperature Under Continuous UV Illumination in Humid Air

2016 ◽  
Vol 16 (10) ◽  
pp. 10346-10350 ◽  
Author(s):  
Nguyen Minh Vuong ◽  
Nguyen Duc Chinh ◽  
Truong Thi Hien ◽  
Nguyen Duc Quang ◽  
Dahye Kim ◽  
...  
2018 ◽  
Vol 264 ◽  
pp. 353-362 ◽  
Author(s):  
Maddaka Reddeppa ◽  
Byung-Guon Park ◽  
Moon-Deock Kim ◽  
Koteswara Rao Peta ◽  
Nguyen Duc Chinh ◽  
...  

Sensors ◽  
2020 ◽  
Vol 20 (19) ◽  
pp. 5701
Author(s):  
Nguyen Manh Hung ◽  
Chuong V. Nguyen ◽  
Vinaya Kumar Arepalli ◽  
Jeha Kim ◽  
Nguyen Duc Chinh ◽  
...  

Tin sulfide (SnS) is known for its effective gas-detecting ability at low temperatures. However, the development of a portable and flexible SnS sensor is hindered by its high resistance, low response, and long recovery time. Like other chalcogenides, the electronic and gas-sensing properties of SnS strongly depend on its surface defects. Therefore, understanding the effects of its surface defects on its electronic and gas-sensing properties is a key factor in developing low-temperature SnS gas sensors. Herein, using thin SnS films annealed at different temperatures, we demonstrate that SnS exhibits n-type semiconducting behavior upon the appearance of S vacancies. Furthermore, the presence of S vacancies imparts the n-type SnS sensor with better sensing performance under UV illumination at room temperature (25 °C) than that of a p-type SnS sensor. These results are thoroughly investigated using various experimental analysis techniques and theoretical calculations using density functional theory. In addition, n-type SnS deposited on a polyimide substrate can be used to fabricate high-stability flexible sensors, which can be further developed for real applications.


2019 ◽  
Vol 6 (1) ◽  
pp. 176-183 ◽  
Author(s):  
Jing Wang ◽  
Mingying Yu ◽  
Xian Li ◽  
Yi Xia

PSS-functionalized ZnO nanowires exhibited a highly sensitive, fast, reversible and stable optoelectronic response to NO2 under UV illumination.


2011 ◽  
Vol 153 (1) ◽  
pp. 188-193 ◽  
Author(s):  
Nguyen Van Quy ◽  
Vu Anh Minh ◽  
Nguyen Van Luan ◽  
Vu Ngoc Hung ◽  
Nguyen Van Hieu

2019 ◽  
Vol 30 (18) ◽  
pp. 17094-17105
Author(s):  
Akshay Krishnakumar ◽  
Parthasarathy Srinivasan ◽  
Arockia Jayalatha Kulandaisamy ◽  
K. Jayanth Babu ◽  
John Bosco Balaguru Rayappan

2016 ◽  
Vol 371 ◽  
pp. 224-230 ◽  
Author(s):  
U.T. Nakate ◽  
R.N. Bulakhe ◽  
C.D. Lokhande ◽  
S.N. Kale

2017 ◽  
Vol 19 (29) ◽  
pp. 19043-19049 ◽  
Author(s):  
Shuai Wang ◽  
Da Huang ◽  
Shusheng Xu ◽  
Wenkai Jiang ◽  
Tao Wang ◽  
...  

Defects caused by Al3+doping significantly affect the gas-sensing properties of NiO nanosheets.


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