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( Chundi Seshendra Reddy ),( Akepati Sivasanakara Reddy ),권빈희,박성민,인인식 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.0
The effect of graphene oxide (GO) on the ethanol sensing and photodetector performance of SnO<sub>2</sub> nanotubes (NTs) were studied. Pristine SnO<sub>2</sub> NTs were produced via electrospinning method, whereas GO-SnO<sub>2</sub> NTs were produced by dipping SnO<sub>2</sub> NTs in a GO solution with a suitable annealing. The pristine and GO-SnO<sub>2</sub> NTs showed higher response, towards ethanol gas compared to other gases with an optimum working temperature of 300°C. Integration of GO on the surface of SnO<sub>2</sub> NTs can be a suitable method to enhance the sensing performance. Then, pure and doped SnO<sub>2</sub> nanotubes based photodetectors were constructed, GO-SnO<sub>2</sub> NTs exhibits good quantum efficiency and short response time compare with pristine SnO<sub>2</sub> nanotubes. The high performance of the doped SnO<sub>2</sub> nanotubes can be attributed to the perfect crystallinity and the special GO-embedded structure. ** 2019년 한국교통대의 지원을 받아 수행하였음.