单一纯相1T'-WSe2单层的分子束外延生长 1T'结构相的单元胞层二维过渡金属硫化物家族MX2(M = Mo,W, X = S, Se, Te)是一种理想的二维拓扑绝缘体材料,具有本征的量子自旋霍尔效应。如果再进一步引入磁性、超导等性质,这类材料有可能在马约拉纳费米子研究、拓扑量子计算等领域有着重要的前景。然而,虽然1T'-...
In this manuscript, a stable Sn-doped metal phase tungsten selenide (1T-WSe2-Sn) was elaborately fabricated in situ by a simple calcination technique. N-doping was introduced by employing chitosan as precursor and nanoreactor, the Sn-doping induces 1T phase of WSe2and enlarges the layer space...
1T' WSe2 branched few-layered nanosheets are produced in high yield and in a reproducible and controlled manner. The 1T' phase is fully convertible into the semiconducting 2H phase upon thermal annealing at 400 掳C. The 1T' WSe2 nanosheets demonstrate a metallic nature exhibited by an enhanced...
Most single-layer MX2 materials, including WSe2, are stable only in the 1H phase, which gives rise to ordinary semiconductors. Our demonstration of the successful creation of single-layer 1T′ WSe2 with a sizable QSH gap offers an important example of materials engineering. Its QSH gap of ...
1T' WSe2 branched few- layered nanosheets are produced in high yield and in a reproducible and controlled manner. The 1T' phase is fully convertible into the semiconducting 2H phase upon thermal annealing at 400 °C. The 1T' WSe2 nanosheets demonstrate a metallic nature exhibited by an ...
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The monolayer 1T'-WSe2 was found to be metastable, and can transform into 2H phase under post-annealing procedure. The phase transition temperature of 1T'-WSe2 grown on BLG is lower than that of 1T' phase grown on 2H-WSe2 layers. This thermo-driven crystalline phase transition makes the ...
CO、.H2CO2H2002离子液体H3PO4与WSe2KH2PO4CoO2溶液A质子交换膜BM单晶硅N光电池1tt1太阳光研究人员设计出一种新型太阳能催化电解装置,利用过渡金属化合物作催化剂制得合成气,同时减少温室气体的排放。下列说法不正确的是( ) A. M是光电池的负极 B. 阳极电极反应式为2H2O-4e-==O2↑+ 4H+ C. 该装置...
不同于具有高对称2H结构的VI族TMDs材料(如MoS2和WSe2),VII族TMDs(如ReS2和ReSe2)材料具有低对称的1T'结构。这种晶格结构对称性的降低赋予了这类材料独特的二维面内各向异性光学和电学性质,使其在场效应晶体管、光电探测器和新概念器件等方面具有很大的应用潜力。然而,因VII族TMDs材料的结构更加复杂,其制备和性质...
袁国定目前担任中山市美家美户照明有限公司法定代表人,同时担任中山市美家美户照明有限公司财务负责人,执行董事,经理;二、袁国定投资情况:袁国定目前是中山市美家美户照明有限公司直接控股股东,持股比例为100%;目前袁国定投资中山市美家美户照明有限公司最终收益股份为100%;三、袁国定的商业合作伙伴:基于公开数据展示...