Flexible integrated circuits and multifunctional electronics based on single atomic layers of MoS 2 and graphene

Two-dimensional materials, such as graphene and its analogues, have been investigated by numerous researchers for high performance flexible and conformal electronic systems, because they offer the ultimate level of thickness scaling, atomically smooth surfaces and high crystalline quality. Here, we use layer-by-layer transfer of large area molybdenum disulphide (MoS 2 ) and graphene grown by chemical vapor deposition (CVD) to demonstrate electronics on flexible polyimide (PI) substrates. On the same PI substrate, we are able to simultaneously fabricate MoS 2 based logic, non-volatile memory cells with graphene floating gates, photo-detectors and MoS 2 transistors with tunable source and drain contacts. We are also able to demonstrate that these flexible heterostructure devices have very high electronic performance, comparable to four point measurements taken on SiO 2 substrates, with on/off ratios >10 7 and field effect mobiliti...

Matin Amani, Robert A Burke, Robert M Proie and Madan Dubey

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