[19p-211B-1~14] 4.1 Plasmonics and Nanophotonics

▲ [19p-211B-12] Plasmonic Hot Carrier Detection via SrTiO3 Interfacial Layer

〇TAKAYUKI MATSUI^1,2, Yi Li¹, Rupert Oulton¹, Lesley Cohen¹, Stefan Maier¹ (1.Imperial College London, 2.Toyota CRDL)

Keywords:Plasmon, Hot Carrier, Strontium Titanate

we observed stable and boosted photocurrents upon resonant plasmonic excitation with
ultrathin SrTiO3 interfaces. This lattice matched inorganic perovskite between metal and Si can be initially functionalized as a conducting layer due to the nanofilament formation via soft dielectric breakdowntechnique. We verified the superior stability of devices incorporating a SrTiO3 layer by studying the photo-response, tunability and barrier height under high reverse biases.