[15a-F202-1~13] 3.12 Nanoscale optical science and near-field optics

▲ [15a-F202-3] Plasmonic Photovoltaic Cells Based on Two-Dimensional Metal Halfshell Arrays

〇(D)Ling Wu¹, Gyu Min Kim¹, Hiroyasu Nishi¹, Tetsu Tatsuma¹ (1.Univ. of Tokyo)

Keywords:plasmon-induced charge separation, plasmonic halfshell array, solid-state photovoltaic cell

Recently, we applied ordered plasmonic halfshell arrays to plasmon-induced charge separation (PICS). The prepared photoelectrodes with two-dimensional (2D) Au halfshell arrays on SiO₂@TiO₂ colloidal crystals give negative photopotential shifts and anodic photocurrents in wet cells. Here we developed solid-state cells by taking advantage of the 2D structure of the metal halfshell array, which serves both as a light absorber and a current collector.