Exciton Dynamics in MoS₂-Pentacene and WSe₂-Pentacene Heterojunctions.

ABSTRACT: We measured the exciton dynamics in van der Waals heterojunctions of transition metal dichalcogenides (TMDCs) and organic semiconductors (OSs). TMDCs and OSs are semiconducting materials with rich and highly diverse optical and electronic properties. Their heterostructures, exhibiting van der Waals bonding at their interfaces, can be utilized in the field of optoelectronics and photovoltaics. Two types of heterojunctions, MoS₂-pentacene and WSe₂-pentacene, were prepared by layer transfer of 20 nm pentacene thin films as well as MoS₂ and WSe₂ monolayer crystals onto Au surfaces. The samples were studied by means of transient absorption spectroscopy in the reflectance mode. We found that A-exciton decay by hole transfer from MoS₂ to pent

SUBMITTER: Markeev PA 

PROVIDER: S-EPMC9620401 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature