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Abstrak :
ABSTRAK
ABSTRACT
ZnO is one of the potential semiconductors for photodetector application. However, the responsivity and the time responses are still low and need more improvement. Therefore, the nanohybrid between ZnO and the transition metal decalchogenides (TMDs) is a promosing structure could increase the photodetector performance. In this study, ZnO nanorods structure was fabricated on the interdigitated indium tin oxide (ITO) electrode on glass substrate via ultrasonics spray pyrolysis and hydrothermal method, then MoS2 nanosheets with two different liquid exfoliation times (4 and 8 hours) were deposited on ZnO nanorods by spin-coating method. In this study it has been shown that the variation of exfoliation time of 4 and 8 hours produces MoS2 nanosheets that are almost the same number of layers, namely 3-6 layers. However, MoS2 8H can be deposited much more onto the surface of ZnO nanorods. Generally, this study shows that the addition of MoS2 can improve the performance of the ZnO nanorods photodetector in both the UV region and the visible light. Based on the increase in the value of Responsivity, Detectivity and Sensitivity, the addition of MoS2 8H produces the best nanohybrid MoS2/ZnO structure especially for red light photodetectors (625 nm) due to the highest increase in photocurrent and high electron mobility in MoS28H.