Charge transfer mediated giant photo-amplification in air-stable $\alpha$-CsPbI${}_3$ nanocrystals decorated 2D-WS${}_2$ photo-FET with asymmetric contacts

Shreyasi Das, Arup Ghorai, Sourabh Pal +3

Hybrid heterostructure based phototransistors are attractive owing to their high gain induced by photogating effect. However, the absence of an in-plane built-in electric field in…