TEM Grids with Holey Film

Holey/lacey supporting film, with open holes for characterization without background inteference

 

 

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Description

🔹 Description

Holey carbon TEM grids feature a carbon film with regularly distributed holes, allowing samples to be suspended over open areas without underlying support.

Compared to continuous films, holey carbon films significantly reduce background scattering and improve image contrast, making them ideal for high-resolution and cryo-TEM applications.

The hole size and spacing can be precisely controlled, enabling optimized imaging conditions for different sample types.


 

🔹 Specifications

Product: Transmission electron microscopy (TEM) grids / copper (Cu) grids
Model: TEM grids with holey / lacey carbon and Formvar supporting film
Grid diameter:

3.05 mm

Supporting film:

Holey supporting film

• Carbon layer  ~7-10 nm 

• Formvar layer  ~20 -30 nm

• Hole size  ~0.25 – 5 um

Remarks: Pros
• No background interference
• Good for high-resolution imaging

Cons
• Cannot hold small objects like nanoparticles

Contact Us if you have trouble with the selection.


 

🔹 Film Structure

Typical structure:

  • Top layer: Perforated carbon film
  • Bottom layer: Metal grid support

 

🔹 Key Features

  • Perforated carbon film with defined hole pattern
  • Reduced background scattering for improved contrast
  • Enables imaging over vacuum (no underlying film)
  • Optimized for high-resolution TEM and cryo-TEM
  • Available in various hole sizes and spacings

 

🔹 Applications

  • Cryo-TEM (single particle analysis)
  • Nanoparticle characterization
  • High-resolution TEM imaging
  • Electron tomography
  • Low-contrast sample imaging

 

🔹 Continuous vs Holey vs Ultrathin

Type Features
Continuous Carbon Full support, easy handling
Holey Carbon Open areas, low background, high resolution
Ultrathin Carbon Highest transparency, lowest background