Field-induced charge separation dynamics in monolayer MoS 2
Source abstract
Abstract
Abstract The absorption spectra of 2D semiconductors are dominated by excitons with binding energy of several hundreds of meV. Nevertheless, even single layers show an appreciable photovoltaic effect and work as the active material in high sensitivity photodetectors, thus indicating some degree of free charge carrier photogeneration. Here, we perform ultrafast transient absorption spectroscopy on monolayer MoS 2 in a field-effect transistor configuration. We show that even a moderate in-plane electric field of a few kV cm −1 can significantly increase the yield of charge carriers from photogenerated hot electron–hole pairs.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: 2D Materials and Applications · Perovskite Materials and Applications · Nanowire Synthesis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Jozef Stefan Institute
Jozef Stefan International Postgraduate School
National University of Singapore
Authors to whom correspondence should be addressed.
École Polytechnique Fédérale de Lausanne
Politecnico di Milano
Trinity College Dublin
Center of Excellence in Nanoscience and Nanotechnology
Istituto di Fotonica e Nanotecnologie (IFN)
References (45)
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