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The role of device asymmetries and Schottky barriers on the helicity-dependent photoresponse of 2D phototransistors
Jorge Quereda, Jan Hidding, Talieh S. Ghiasi +3
Circular photocurrents (CPC), namely circular photogalvanic (CPGE) and photon drag effects, have recently been reported both in monolayer and multilayer transition metal dichalcoge…
Excitons, trions and Rydberg states in monolayer MoS2 revealed by low temperature photocurrent spectroscopy
Daniel Vaquero, Vito Clericò, Juan Salvador-Sánchez +6
We investigate excitonic transitions in a h-BN encapsulated monolayer phototransistor by photocurrent spectroscopy at cryogenic temperature (T = 5 K). The spectra…
Symmetry regimes for circular photocurrents in monolayer MoSe2
Jorge Quereda, Talieh S. Ghiasi, Jhih-Shih You +3
In monolayer transition metal dichalcogenides helicity-dependent charge and spin photocurrents can emerge, even without applying any electrical bias, due to circular photogalvanic…