n-type MoSe2 crystals N型二硒化钼晶体

Years of growth optimization lead to our flawless n-type MoSe2 crystals through Au or Re doping: They are simply treated as gold standards in 2D materials field. Our n-type MoSe2 crystals are doped with Re or Au atoms at ~1E17-1E18 cm-3 range. However, if your research  requires other types or concentration of dopants please contact us. Intentionally doped MoSe2 crystals from 2Dsemiconductors are known for its superior valleytronic performance, perfect crystallization, defect free structure, extremely narrow PL bandwidths, clean PL spectra (free of bound exciton shoulders), and high carrier mobility. Thousands of scientific articles have cited us and used these crystals for scientific accuracy and clean signals. Please also see our n- and p-type MoSe2 crystals doped with Au, Re, Nb, or other transition metal atoms. Please note that doping into TMDCs greatly reduce the crystallization time (growth speeds), thus electronically doped TMDCs measure smaller than undoped (intrinsic) TMDCs.

Single crystal n-type MoSe2 characteristics

Growth method matters> Flux zone or CVT growth method? Contamination of halides and point defects in layered crystals are well known cause for their reduced electronic mobility, reduced anisotropic response, poor e-h recombination, low-PL emission, and lower optical absorption. Flux zone technique is a halide free technique used for synthesizing truly semiconductor grade vdW crystals. This method distinguishes itself from chemical vapor transport (CVT) technique in the following regard: CVT is a quick (~2 weeks) growth method but exhibits poor crystalline quality and the defect concentration reaches to 1E11 to 1E12 cm-2 range. In contrast, flux method takes long (~3 months) growth time, but ensures slow crystallization for perfect atomic structuring, and impurity free crystal growth with defect concentration as low as 1E9 - 1E10 cm-2. During check out just state which type of growth process is preferred. Unless otherwise stated, 2Dsemiconductors ships Flux zone crystals as a default choice.

http://meetings.aps.org/Meeting/MAR18/Session/K36.3

http://meetings.aps.org/Meeting/MAR17/Session/V1.14

Summary of available doped layered materials

MoS2; n-type and p-type available (via Nb, Co, Ni, Au, or Re dopants)

WS2; n-type and p-type available (via Au or Nb doping;

WSe2; n-type and p-type available (via Re or Nb doping)

MoSe2 ; n-type and p-type available (via Re or Nb doping)

Black phosphorus; n-type or p-type doping available (via Br or As doping)

ReX2 (X=S, Se); n-type or p-type doping available (via Mo or Nb doping)

Bi2X3 (X=S,Se, and Te); n-type or p-type doping available (via Ca doping)

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