Spin Coaters
Spin Coaters: Spin Parameters, Chuck Choice and Laboratory Models
Spin coating produces uniform thin films by dispensing solution onto a substrate and spinning it rapidly. Film thickness is set by spin speed, acceleration, time and the solution properties - which is why reproducibility depends entirely on the instrument's speed accuracy.
- No vacuum linea single mains socket is enough
- 120-10,000 rpmdepending on model
- Glove-box compatiblefor air-sensitive materials
- Multi-substrate chuckfour common substrate sizes
Parameters that set film thickness
- Spin speed. The faster the spin, the thinner the film. The relationship is not linear, so a thickness-versus-rpm curve has to be built for each solution.
- Acceleration. How quickly the stage reaches working speed affects uniformity, especially with fast-evaporating solutions.
- Spin time and number of steps. Many recipes need two or three different speed stages in one programme.
- Solution viscosity and concentration. These two are the variables most often changed to shift thickness substantially.
- The instrument's speed accuracy. Standard models hold the error below 2%, advanced models below 0.25% - a difference that shows up in batch-to-batch reproducibility.
Ossila models compared
| Specification | Standard L2001A3 | Advanced L2001B2 |
|---|---|---|
| Speed range | 120-6.000 rpm | 500-10.000 rpm |
| Speed accuracy | error < 2% | stability < 0.25% |
| Vacuum line | not required | not required |
| Placement | bench, fume hood or glove box | bench, fume hood or glove box |
| Substrates | up to 100 mm (4") with the right chuck | up to 100 mm (4") with the right chuck |
The multi-substrate polypropylene chuck takes four common sizes: 20 × 15 mm, 25 × 25 mm, 50 × 50 mm and 75 × 25 mm. PTFE chucks are available for aggressive solvents.
Spin coaters and accessories
| Model | Best for | Price | Purchase |
|---|---|---|---|
| Ossila Standard spin coater + multi-substrate PP chuck | 120-6,000 rpm, four substrate sizes, vacuum-free | Rp 97.140.000 | Buy online |
| Ossila Spin Coater Standard L2001A3 | The standard body, with the chuck chosen for your substrate | Rp 99.630.000 | Buy online |
| Ossila Spin Coater Advanced L2001B2 | 500-10,000 rpm with <0.25% stability for demanding recipes | Rp 122.047.000 | Buy online |
| Ossila Spin Coater Advanced + single syringe pump | Automatic dispensing while the substrate spins | Rp 176.844.000 | Buy online |
| Ossila Spin Coater Advanced + dual syringe pump | Two solutions for perovskite antisolvent recipes | Rp 216.696.000 | Buy online |
| Ossila UV ozone cleaner | Cleans and renders substrates hydrophilic before coating | Rp 119.556.000 | Buy online |
| Ossila L2007A1 glove box | Coating air-sensitive materials in an inert atmosphere | Rp 346.215.000 | Buy online |
Store catalogue prices before 11% VAT and shipping; subject to change. Stock and delivery time are confirmed in the quotation.
Frequently asked questions
Does a spin coater need a vacuum line?
The Ossila models do not. Substrates are held flat on a smart chuck that drains excess solution away rather than holding by suction, so thin or flexible substrates do not warp and the instrument needs only a mains socket.
What spin speed is used for perovskites?
Perovskite recipes generally use several speed stages with antisolvent dispensing at a set moment, so the numbers depend on the recipe you follow. What matters is that the instrument can be programmed in stages and repeats its speed consistently. See the perovskite solar-cell lab equipment list.
Which chuck should be chosen?
Choose on substrate size and solvent. The multi-substrate polypropylene chuck covers four common sizes and suits most work; a PTFE chuck is used when the solvent is aggressive.
Can it be used inside a glove box?
Yes, and this is one reason the vacuum-free design is chosen: there is no vacuum line to pass through the glove-box wall.
Need help choosing a specification?
Tell us about your samples, working temperature or test method. Our team will match the right model and send a formal quotation with an estimated delivery time.
