Mixed dimensional heterostructures incorporating monolayers of transition metal dichalcogenides (TMDs) and non-van Der Waals nanomaterials provide interesting physics at low dimensions and beyond that of pristine TMDs. Of particular interest are light stimulated interfacial phenomena where excitons and/or charge carriers induced in either components diffuse at the interface of the heterostructure to provide enhanced optical activity.
In this work we report ultrafast carrier dynamics in mixed 0D/2D PbS QD-monolayer MoS2 by transient absorption microscopy and time-resolved confocal luminesce. We show dependency of the rate for carrier transfer with PbS QD core size which we relate to changes in bandgap alignment at interface and resulting from changes in components band overlap and provide a mechanistic view of interfacial charge transfer via ultrafast transient absorption and emission microscopy.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.