Effusion Cells

High Temperature Effusion Cell
High Temperature Effusion Cell
Effusion Cell (Knudsen Cell)
Effusion Cell

The Effusion Cell (Knudsen Cell) is the staple of Molecular Beam Epitaxy technology. SVT Associates offers a wide selection of models and sizes to evaporate almost any elemental or compound material. Each Effusion Cell is manufactured from high purity materials with all ceramic and refractory metal hot zones. This ensures no undesired outgassing in a UHV environment as well as the longevity of the cells.

The Effusion Cell is a highly controllable and efficient deposition source for MBE and non-epitaxial Physical Vapor Deposition. The radiatively heated crucible with a close coupled thermocouple ensures stability and reproducibility not found with other evaporation sources. The optimally shaped crucible increases material utilization.

Each Molecular Beam Epitaxy Source is thoroughly tested and characterized prior to shipping. This ensures that the Effusion Cell will exceed the performance expected when arriving at the end-user's site. All SVT Associates' Effusion Cells are UHV compatible and bakeable to 200°C.

A variety of options are available to enhance the utility of the Effusion Cells. This Includes Integrated Shutters, Integrated Water Cooling, Power Supply and Temperature Controller Packages, and material specific crucibles.

Material Selection Guide

IA                                 VIIIA
H IIA                     IIIA IVA VA VIIA VIIA He
Li Be                     B C N O F Ne
Na Mg IIB IVB VB VIB VIIB VIIIB   IB IIB Al Si P S Cl Ar
K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As* Se Br Kr
       
Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb* Te I Xe
     
Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
 
Fr Ra Ac Rf Db Sg Bh Hs Mt Uun Uuu Uub   Uuq   Uuh   Uuo
 
 Lanthanides Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu  
   
 Actinides Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr  

*Recommended Source: Valved Cracker

   Single Filament Series    Hot-Lip Series    Cold-Lip Series
           
   Low Temperature Series  

 High Temperature Series

    Dopant Series
           
   Dual Filament Series    Excel Series for Organic Compounds    

The expert team at SVT Associates is happy to discussion your application and consult with you in determining the best Effusion Cell to meet your needs. Contact SVTA for more information.