Quantifoil
®
Micromachined Holey Carbon Grids
Quantifoil holey carbon supported grids, Multiple hole sizes/shapes
Chinese
Quantifoil Multi A Foil
Quantifoil Multi A is a holey support film in which a pattern of various hole sizes, shapes and arrangements are repeated. In addition to circular holes, of three different diameters, there are also different hole spacings, including an oval hole which at high tilt angles would appear round (this would occur at ~ 70°).
The diameters of the circular holes are (about) 1, 1.4, and 2 µm, and the "bar widths" range from 0.5 to 4 µm. The oval holes in the foil have a dimension of 8x2 µm and 4 x 1 µm. By "bar width" we mean the distance covered, on carbon film, from the edge of one hole to the nearest neighbor hole.
Take a closer look with better detail
.
Carbon film (foil) thickness:
The carbon film thickness is closely controlled to be within the range of 10-12 nm. Across the film, there is virtually no thickness variation. Note that wherever there is the carbon film, there is the possibility for a thin (less than 20 nm) polymer layer, remaining from the production process. We always try to remove all of it, but sometimes, some thin amount does remain. However, the holes are guaranteed to be "clean", there is no polymer film layer covering any of the holes. So when you take data from a sample that is "over" a hole, you can be sure that there is nothing other than the sample in the path of the electron beam.
SPI #
Each
In Stock
Quantifoil Multi A
200 mesh (square),
Pack of 100 grids
Copper
4720C-XA
$608.34
No
Nickel
4720N-XA
697.08
No
Rh plated copper
4720R-XA
697.08
No
Gold
4720G-XA
697.08
No
300 mesh (square),
Pack of 100 grids
Copper
4730C-XA
607.77
No
Nickel
4730N-XA
697.84
No
Rh plated copper
4730R-XA
697.84
No
Gold
4730G-XA
697.84
No
400 mesh (square),
Pack of 100 grids
Copper
4740C-XA
607.77
No
Nickel
4740N-XA
697.84
No
Rh plated copper
4740R-XA
697.84
No
Gold
4740G-XA
697.84
No
100x400 mesh (square),
Pack of 100 grids
Copper
4750C-XA
607.77
No
Nickel
4750N-XA
697.84
No
Rh plated copper
4750R-XA
697.84
No
Gold
4750G-XA
697.84
No
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Friday July 04, 2008
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