Open AccessSynthesis of CuO/SnO2 NPs on quartz substrate for temperature sensors application
Author(s) -
Abdulqader D. Faisal,
W. K. Kalef,
Evan T. Salim,
Forat H. Alsultany
Publication year - 2022
Publication title -
journal of ovonic research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.361
H-Index - 12
eISSN - 1842-2403
pISSN - 1584-9953
DOI - 10.15251/jor.2022.182.205
Subject(s) - materials science , scanning electron microscope , nanostructure , heterojunction , nanoparticle , atmospheric temperature range , substrate (aquarium) , quartz , nanotechnology , chemical engineering , diffraction , chemical vapor deposition , analytical chemistry (journal) , optoelectronics , composite material , chemistry , optics , chromatography , geology , meteorology , engineering , oceanography , physics
Temperature sensor of p-CuO/n-SnO2 heterojunction was successfully fabricated and investigated. SnO2 nanostructure was firstly synthesized via chemical vapor deposition. Followed by a top layer of CuO nanoparticles was deposited on SnO2 by drop cast method. The SnO2 film was analyzed via x-ray diffraction (XRD) and scanning electron microscope (SEM). The XRD confirms the formation of the SnO2 nanstructure .The SEM reveals the SnO2 nanoparticles agglomerated together forming a cauliflowers-like nanostructure with a calculated particle size of 17nm. The temperature response corresponding to the relative variation of sensor resistance (ΔR) to a given temperature was measured. It was found that the present sensor has a high sensitivity of 0.56%/°C. Temperature sensor p-CuO/n-SnO2 heterojunction was found to be quite promising material in the temperature range of 25-200⁰ C.