[16p-2J-1~12] 3.9 テラヘルツ全般

[16p-2J-12] Terahertz Detection in Double-Graphene-Layer Heterostructure

〇(M2)ステファヌス アルノード¹、BOUBANGA TOMBET STEPHANE¹、YADAV DEEPIKA¹、WATANABE TAKAYUKI¹、RYZHII VICTOR^1,2、OTSUJI TAIICHI¹ (1.RIEC Tohoku Univ.、2.UHF Semiconductor Electronics Inst)

キーワード：Double-Graphene-Layer Heterostructures、Terahertz Detection

We report on experimental observation of terahertz detection in a double graphene layer heterostructure (DGL) that consist of two independently contacted graphene electrodes separated by a thin hexa-Boron Nitride (h-BN) barrier layer. The bias voltages/doping causes the inter-graphene-layer population inversion with the possibility of photon-assisted resonant-tunneling transitions between the conduction bands and valence bands of the two graphene layers. We demonstrate that this can enable the realization of devices such as a terahertz detectors.