Self-assembly based plasmonic nanoparticle array coupling with hexagonal boron nitride nanosheets.

摘要: Investigation of hexagonal boron nitride nanosheet (BNNS)/plasmonic nanoparticle (NP) composites is crucial importance for developing plasmaron-based nanodevices. In this study, a simple and effective way depicting the fabrication BNNS/Au NP nanocomposites reported. Diblock copolymer-based arrays exhibiting high ordering offering easy control particle size are utilized to produce Au by directly bonding them BNNSs on large scale, allowing investigate underlying physics metal/BNNS interface. The coupling between plasmonic arrays, work function, charge transfer surface-enhanced Raman scattering (SERS) BNNS phonon modes explored. It revealed that local surface plasmon resonance (LSPR) NPs induces an electromagnetic mechanism responsible enhanced results when placing below NPs. contrast, essential contribution chemical enhancement from induced energy realignment at interface manifested in hybrid systems encapsulated BNNS. This first demonstration evolution charge-based interactions dependent interface, thus providing straightforward implications further develop BNNS-based plasmonics, optoelectronics, electronics.