Strong exciton-localized plasmon coupling in a-Ge24Se76/AuNP heterostructure
Source abstract
Abstract
Metal nanoparticle-semiconductor interfaces are sites of complex light-matter interactions, in particular, the exciton-plasmon coupling which plays a key role in the optical response of such heterostructures. There exists a pathway of photoinduced charge transfer from the semiconductor to the metal, which can be used to controllably vary the driving forces at the interface that leads to tunable optoelectronic properties. In this letter, we report the observation of a dramatic suppression of plasmonic as well as excitonic absorption in a-Ge24Se76/gold nanoparticle heterostructures by trapped charges. Suppression of the excitonic absorption is strongly correlated with the plasmon wavelength.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Gold and Silver Nanoparticles Synthesis and Applications · Chalcogenide Semiconductor Thin Films · Nonlinear Optical Materials Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics, Indian Institute of Science Education and Research, Bhopal 462066, India
Department of Physics, Indian Institute of Science, Bangalore, India
Institute of Physics, University of Debrecen, Debrecen, Hungary
Department of Materials Science and Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, USA
Funding
National Science Foundation (NSF) · Department of Science and Technology, Ministry of Science and Technology (DST) · Council of Scientific and Industrial Research (CSIR)
References (30)
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