| Title: | Low-Temperature Operating Black SnO(2)-Based VOC Sensor Setup |
| Author(s): | Mahalingappa K; Pranesh GM; Manjunath GB; Mundinamani S; Molakkalu Padre S; Mishra NN; Chandrasekhar GS; |
| Address: | "Department of Electronics and Communication Engineering, Siddaganga Institute of Technology, B.H. Road (affiliated to Visvesvaraya Technological University, Belagavi), Tumakuru, Karnataka 572103, India. Department of Physics, Siddaganga Institute of Technology, B.H. Road (affiliated to Visvesvaraya Technological University, Belagavi), Tumakuru, Karnataka 572103, India. Nanomaterials and Polymer Physics Lab, Department of Physics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India. Department of Nanotechnology, Siddaganga Institute of Technology, B.H. Road (affiliated to Visvesvaraya Technological University, Belagavi), Tumakuru, Karnataka 572103, India" |
| ISSN/ISBN: | 2470-1343 (Electronic) 2470-1343 (Linking) |
| Abstract: | "Volatile organic compounds (VOCs) are harmful to human beings and animals. VOCs include a carbon compound and its derivatives. VOCs irritate the eyes, ears, and throat, ahigh concentration of VOCs may cause cancer; also, it affects the central nervous system. A concentration below 0.3 mg/m(3) is harmless, above which it is harmful to human beings. The present work discusses the detection of harmful VOCs using a lab-made portable device setup. Hydrothermally synthesized tin oxide (SnO(2)) nanocubes are used as an active material for VOC detection. The SnO(2) pellet is prepared using a hydraulic press method and is used in the portable setup. Temperature-dependent VOC detection is carried out using a microheater. An external potential is applied to the microheater, which stimulates the active material to sense ethanol at 40 degrees C. SnO(2) and EA deposited on graphite interdigitated electrodes projected on cellulose are used to detect isopropanol, ethanol, and acetone at room temperature. Temperature-dependent studies on acetone are carried out. A significant change in the current levels is observed for different VOCs. A positive shift in the Dirac point is noticed upon VOC exposure. The developed portable device plays a vital role in analyzing sensors based on various active materials for VOC detection" |
| Notes: | "PubMed-not-MEDLINEMahalingappa, Kiran Pranesh, Gowtham Maralur Manjunath, Gopinatha Bidarkatte Mundinamani, Shridhar Molakkalu Padre, Shilpa Mishra, Nirankar Nath Chandrasekhar, Gurumurthy Sangam eng 2021/09/14 ACS Omega. 2021 Aug 26; 6(35):22900-22908. doi: 10.1021/acsomega.1c03399. eCollection 2021 Sep 7" |
