Long-lived charge separation following pump-wavelength–dependent ultrafast charge transfer in graphene/WS <sub>2</sub> heterostructures
Shuai Fu, Indy du Fossé, Xiaoyu Jia, Jingyin Xu, Xiaoqing Yu, Heng Zhang, Wenhao Zheng, Sven Krasel, Zongping Chen, Zhiming Wang, Klaas‐Jan Tielrooij, Mischa Bonn, Arjan J. Houtepen, Hai I. Wang
Abstract
to the valence band of graphene for above-A-exciton excitations. These findings provide insights to further optimize the performance of optoelectronic devices, in particular photodetection.
Topics & Concepts
GrapheneUltrashort pulseCharge (physics)HeterojunctionMaterials scienceWavelengthOptoelectronicsNanotechnologyOpticsPhysicsLaserQuantum mechanics2D Materials and ApplicationsGraphene research and applicationsPlasmonic and Surface Plasmon Research