遷移金属ダイカルコゲナイドの層数減少による吸収波長のブルーシフトについて
How the A Exciton Absorption Peak of MoS₂ and WS₂ Blue Shifts with Decreasing Layer Number
Abstract: We present a detailed analysis of the blue shift observed in the A exciton absorption peak of MoS₂ and WS₂ as layer number decreases. Quantum confinement and reduced dielectric screening in monolayers lead to enlarged band gaps and strong exciton binding, causing higher-energy excitonic transitions. We also discuss how photoluminescence and Ra…
