Cu2O-GO/SnO2 quantum dots for selective ethylene sensing at ppm to sub-ppm levels

• Published in: Sensors and actuators. B, Chemical Vol. 443; p. 138265
• Main Authors: Leangtanom, Pimpan, Wisitsoraat, Anurat, Chanlek, Narong, Lawan, Narin, Muangpil, Sairoong, Phanichphant, Sukon, Kruefu, Viruntachar
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.11.2025
• Subjects: Agriculture; Cu2O; Ethylene; Gas sensor; Graphene oxide; SnO2; SnO2; Gas sensor; Graphene oxide; Agriculture; Ethylene; Cu2O

In this work, hydrothermally synthesized SnO2 quantum dots (QDs), composited with graphene oxide (GO) and impregnated with 0–0.75 wt% cuprous oxide (Cu2O), were systematically studied for C2H4 sensing. Microscopic examination demonstrated multilayer GO dispersed quite uniformly within 3.0–3.7 nm qua...