Fabrication of Amorphous Silicon-Carbon Hybrid Films Using Single-Source Precursors.

The aim of this study was the preparation of different amorphous silicon-carbon hybrid thin-layer materials according to the liquid phase deposition (LPD) process using single-source precursors. In our study, 2-methyl-2-silyltrisilane (methylisotetrasilane; ), 1,1,1-trimethyl-2,2-disilyltrisilane (trimethylsilylisotetrasilane; ), 2-phenyl-2-silyltrisilane (phenylisotetrasilane; ), and 1,1,2,2,4,4,5,5-octamethyl-3,3,6,6-tetrasilylcyclohexasilane (cyclohexasilane; ) were utilized as precursor materials and compared with the parent compound 2,2-disilyltrisilane (neopentasilane; ). Compounds - were successfully oligomerized at λ = 365 nm with catalytic amounts of the neopentasilane oligomer ().

Nonadiabatic Nano-optical Tunneling of Photoelectrons in Plasmonic Near-Fields.

Nonadiabatic nano-optical electron tunneling in the transition region between multiphoton-induced emission and adiabatic tunnel emission is explored in the near-field of plasmonic nanostructures. For Keldysh γ values between ∼1.3 and ∼2.

Measurement of Nanoplasmonic Field Enhancement with Ultrafast Photoemission.

Probing nanooptical near-fields is a major challenge in plasmonics. Here, we demonstrate an experimental method utilizing ultrafast photoemission from plasmonic nanostructures that is capable of probing the maximum nanoplasmonic field enhancement in any metallic surface environment. Directly measured field enhancement values for various samples are in good agreement with detailed finite-difference time-domain simulations.