LB Film Fabrication

Langmuir-Blodgett films are thin films formed by the deposition of floating monolayers onto solid substrates. They can be formed as single layers or multilayers of various thickness. The construction of these films allows a researcher to precisely construct film architectures with control at the molecular level. They are studied by researchers interested in polymer interaction, microelectronics, optics, biosensors,                  For more on theory of LB film fabrication click on this link.

Methods of LB film fabrication

Langmuir-Blodgett Troughs

The basic setup of a LB trough is identical to a Langmuir trough with the addition of a dipping mechanism. The solid substrate is clipped into place and raised or lowered through the floating film. A Wilhelmy balance monitors the change in surface pressure as the dipping proceeds to insure that the change in floating film area (being compressed by barriers) is equal to the area of film deposited. The orientation of the solid is usually vertical (perpendicular to surface of subphase). Depositions onto a solid which is parallel to the subphase is termed Langmuir-Schaeffer deposition.

Instruments which can perform LB film fabrication;

KSV 5000

KSV 3000

KSV 2000

KSV Minitrough

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