As shown in Figure 4 , except for the molybdenum disulfide at a sputtering power of 80 W, the dark current of the graphene/molybdenum disulfide heterojunction photodetectors exhibited a decreasing trend as the sputtering power increased from 60 W to 120 W.
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Study on Photoelectric Properties of Graphene/Molybdenum Disulfide Heterojunction.
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