[8a-Z23-1~10] 【CS.4】 4.5 Nanocarbon and 2D Materialsと17 ナノカーボンのコードシェアセッション

▲ [8a-Z23-10] Chemically brightened and highly valley polarized trions in monolayer MoS₂

〇Wenjin Zhang¹、Kenya Tanaka¹、Yusuke Hasegawa¹、Keisuke Shinokita¹、Kazunari Matsuda¹、Yuhei Miyauchi¹ (1.Kyoto University)

キーワード：transition metal dichalcogenides, MoS2, PL

Monolayer (1L) transition metal dichalcogenides (TMDs) MX₂, where M and X are a transition metal and a chalcogen, respectively, are attractive for exploiting valleytronics or optovalleytronics in fast and energy-saving information processing applications. Their valley polarized excitons or charged excitons (trions) are candidates as information carriers [1-5] in optovalleytronics. Trions, which are three-body charged excitonic bound states of electrons and holes, are expected to exhibit a much longer valley lifetime compared to excitons. However, the relatively weak PL of trions prohibits the realistic application of trions in these materials.