WebJun 1, 2015 · The control of photocurrent direction on photoelectrodes is an intriguing phenomenon, ... the bilayer thin films with simply swapped sequence of Au and TiO 2 can successfully realize the controlling of the photocurrent direction under visible-light irradiation. These findings and the proposed visible-light excited charge-transfer process … Webphotocurrent flows in the same direction (i.e., a unipolar photoresponse)." The final objective of the recent paper by Sun and his colleagues was to develop new p-n heterojunction devices in which the direction of photocurrent can be switched using different wavelengths of light, as this would allow them to create new and more …
Photocurrent as a multiphysics diagnostic of quantum …
WebSep 23, 2024 · The direction of photocurrent in a p–n heterojunction device can be switched by using different wavelengths of light. Semiconducting p–n junctions are building blocks for many electronic... WebJun 25, 2004 · Abstract. We prepared a molecular photodiode system in which the photocurrent direction can be switched by choosing the wavelength of an irradiating light. The molecular system is composed of two types of helical peptides that carry different chromophores and have different directions of dipole moments when they are … orion berryman
Controlling photocurrent direction with light Nature Electronics
WebJan 26, 2024 · We perform nonperturbative calculations of light field induced current in twisted bilayer graphene (tBLG) irradiated by a circularly polarized (CP) few-cycle laser pulse. The strong-field electron dynamics is simulated within a single-particle picture by two complementary approaches, including the velocity-gauge density-matrix equation and … WebAtomic con guration controlled photocurrent in van der Waals homostructures Ying Xiong,1 Li-kun Shi,1,2 and Justin C.W. Song1, 1Division of Physics and Applied Physics, Nanyang Technological University, Singapore 637371 2Max Planck Institute for the Physics of Complex Systems, 01187 Dresden, Germany Conventional photocurrents at a p-n … WebSep 13, 2024 · Bulk photocurrent generation in diamond by THz cocircular ω − 2 ω fields. (a) Schematic Lissajous curve for the time-dependent polarization of the field in Eq. (for ϕ = 0, Δ = 2). Small arrows indicate the direction of time, and the red arrow indicates the direction of the photocurrent (I). orion best stance