NbWSe2三元过渡金属二卤化物(TMDCs)合金。我们的设备已经开发出无缺陷铌钨二氯化铌(x)W(1-x)Se2大单晶晶体，x值在0.3到0.45化学计量范围内。这些晶体的纯度为99.9995%，结晶度完美。晶体是完全合金化的，没有任何相分离，如WSe2和NbSe2区域或晶体畴。单畴尺寸大，拓扑(堆积缺陷)缺陷最小，容易剥离，单层成品率高。采用化学气相输运技术在不使用任何输运剂的情况下生长出二维TMDCs晶体，使我们能够达到高纯度。这些晶体与保证合金和光学/电子级。
我们的晶体的重要优点
1. 利用宏观、微观和纳米尺度的测量来充分表征晶体，以确保没有相分离。
2. 2D TMDCs合金是均匀合金，这意味着在整个样品中你只会发现一种特定的x成分。
3.不分离:在没有仔细控制冷却剖面的情况下，在二维TMDCs合金中经常观察到相分离。
The first NbWSe2 ternary transition metal dichalcogenide (TMDCs) alloy. Large single crystal defect free niobium tungsten diselenide Nb(x)W(1-x)Se2 crystals have been developed in our facilities with x values ranging 0.3 to 0.45 stoichiometric range. These crystals are rated at 99.9995% purity with perfect crystallinity. Crystals are perfectly alloyed and does not have any phase separation such as WSe2 and NbSe2 regions or crystal domains. Single domain size is large and topological (stacking fault) defects are minimal allowing easy exfoliation and high monolayer yield rate. 2D TMDCs crystals are grown using chemical vapor transport technique without any transport agent which enables us to reach high purity rates. These crystals come with guaranteed alloying and optical/electronic response.
Important advantages of our crystals
1. Crystals come fully characterized using macro, micro, and nanoscale measurements to ensure there is no phase separation.
2. 2D TMDCs alloys are homogeneously alloyed which means across the specimen you will only find one particular x composition.
3. No separation: Phase separation is commonly observed in 2D TMDCs alloys when cooling profiles are not controlled carefully.
