Graphene/GaSe-Nanosheet Hybrid: Towards High Gain and Fast Photoresponse

Graphene/GaSe-Nanosheet Hybrid: Towards High Gain and Fast Photoresponse

While high photoconductive gain has been recently achieved in graphene-based hybrid phototransistors using semiconductor two-dimensional transition/post-transition metal dichalcogenides or quantum dots sensitizers, obtaining fast photoresponse simutaneously remains a challenge that must be addressed for practical applications. In this paper we report a graphene/GaSe nanosheets hybrid photodetec...

Hybrid optical antenna with high directivity gain.

Coupling of a far-field optical mode to electronic states of a quantum absorber or emitter is a crucial process in many applications, including infrared sensors, single molecule spectroscopy, and quantum metrology. In particular, achieving high quantum efficiency for a system with a deep subwavelength quantum absorber/emitter has remained desirable. In this Letter, a hybrid optical antenna base...

Mini Review: Nanosheet Technology towards Biomedical Application

The fabrication technique of ultrathin film (commonly known as nanosheets) has been significantly developed over the years. Due to the mechanical properties of nanosheets, such as high levels of adhesion and flexibility, this made nanosheets the ideal candidate in biomedical applications. In this review, innovative biomedical applications of nanosheets are discussed, which include, drug deliver...

Advances in Nanosheet Technology Towards Nanomedical Engineering

Amplifier Structure for High Gain and Fast Settling Applications

High gain amplifiers with fast settling times are needed for high-speed data converter applications. A cascaded amplifier architecture is discussed that can make use of several architecturally identical amplifies to achieve the desired gain. Only one of the amplifiers has a gainbandwidth product requirement that is modestly higher than the rest to keep the overall structure stable in the presen...