Ossila Dip Coater
User Manual
ossila.com
4
Ossila Limited © 2017
1.
Overview
The Ossila Dip Coater is a simple-to-use system designed to deposit thin wet films of solution. Dip
coating involves the controlled immersion and withdrawal of a substrate from a reservoir of solution,
it is widely used in research and development as well as large-scale production.
Film thickness is determined by a balance between several competing forces on the fluid
’
s surface:
viscous force, capillary forces, and draining forces. Ultimately, film thickness is determined by a
combination of the solution properties and the rate of substrate withdrawal from the solution.
The Ossila Dip Coater can finely control properties such as the immersion speed, dwell, time,
withdrawal speed, and drying time. This gives you accurate control over the final thickness and
properties of the deposited film. Equipped with high-precision motors, the system offers excellent
accuracy and reproducibility for travel speeds and substrate positioning. In addition, the system
provides a wide range of coating speeds (ranging from 0.01mm s
-1
to 50mm.s
-1
), variable withdrawal
rates for graded films, and the option to perform repeat cycles. Additional software features include
user profiles, saveable programmes, crash-sensing software, and changeable working units.
The Ossila Dip Coater
’
s wide working base means that larger beakers (up to 2 litres in size) can be
used. As the movement distance of the arm is 110mm, you can coat substrates over 10cm in length.
Its clamping mechanism uses a simple spring-loaded clamp for easy substrate removal. Clamp
pressure can be adjusted to suit either delicate or heavy substrates. To ensure maximum user safety,
the Ossila Dip Coater comes with an inbuilt crash-sensing switch. This will stop the motor if the arm
hits an object, protecting your substrates and glassware.
