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    • Design and fabrication of effective gradient temperature sensor array based on bilayer SnO2/Pt for gas classification
    Authors: Nguyen Van Duy; Nguyen, Xuan Thai; Trinh, Minh Ngoc;  Advisor: -;  Co-Author: - (2022)

    Classification of different gases is important, and it is possible to use different gas sensors for this purpose. Electronic noses, for example, combine separated gas sensors into an array for detecting different gases. However, the use of separated sensors in an array suffers from being bulky, high-energy consumption and complex fabrication processes. Generally, gas sensing properties, including gas selectivity, of semiconductor gas sensors are strongly dependent on their working temperature
    • Extraordinary H2S gas sensing performance of ZnO/rGO external and internal heterojunctions
    Authors: Tran Khoa Dang; Nguyen Tang Son; Nguyen Thi Lanh; Phan Hong Phuoc; Nguyen Ngoc Viet; Le Viet Thong; Chu Manh Hung; Nguyen Van Duy; Nguyen Duc Hoa; Nguyen Van Hieu;  Advisor: -;  Co-Author: - (2021)

    External and internal heterojunctions of reduced graphene oxide (rGO) and ZnO nanofibers (NFs) are developed for ultrasensitive H2S sensing. The gas response of both heterojunctions is significantly higher than that of bare ZnO NFs. The internal heterojun