luride 碲化物
产品简介
详细信息
Our R&D team are about to release new lurene nanowires series (in late March,2018), you may pre-order these products when order regular lurene single crystals.
The first commercial vdW lurium (b-phase) crystals. Layered lurium crystals have been synthesized in perfectly vdW order through flux zone growth technique. The crystal has 99.9999% (6N) rated purity and has been crystalized in perfect atomic order.
Layered lurium (Te) has a trigonal crystal lattice (see product images) in which individual helical chains of Te atoms are stacked together by van der Waals type bonds and spiral around axes parallel to the [0001] direction at the center and corners of the hexagonal elementary cell [1-2]. lurene exhibits a tunable bandgap varying from nearly direct 0.31 eV (bulk) to indirect 1.17 eV (2L) and direct at 1.3 eV (1L) [3]. It has four (two) complex, highly anisotropic and layer-dependent hole (electron) pockets in the first Brillouin zone with an extraordinarily high hole mobility reaching up to theoretical ∼1E5 cm2/Vs value [1-3].
Material characteristics
High carrier mobility semiconductor
Tunable IR semiconductor (Eg ranging from 0.3 to 1.3 eV from bulk to monolayers)
2D anisotropic semiconductor
Physical size ~1cm or larger;
Note: This product is same as lurene material. While material itself is perfectly crystallized in trigonal form (weakly coupled Te chains are present), it is inherently harder to exfoliate in comparison to graphene or MoS2. For best results, we recommend using strongly adhesive tapes or liquid exfoliation technique.
Related references
[1] "Two-dimensional lurium" Nature 552, 40-41 (2017)
[2] "Large-area solution-grown 2D lurene for air-stable, high-performance field-effect transistors"; arXiv:1704.06202
[3] "Few-layer lurium: one-dimensional-like layered elementary semiconductor with striking physical properties" ; https://doi.org/10.1016/j.scib.2018.01.010