Brewster Angle Microscopy, Reflection Spectroscopy and Langmuir-Blodgettry Investigation of Ultra Thin Films

Topics Covered

Background
Accurion BAM1
Accurion EP³-BAM
Accurion MicroBAM
Langmuir Blodgett
Reflection Spectroscopy
Thin Films Imaging
Brewster Angle Microscopy
Software
Applications

Background

Since its first presentation at the LB 6 in Paris, the Accurion Brewster Angle Microscope (BAM) has been established as the worldwide standard technique for the investigation of ultra thin organic films.

Accurion BAM1

Accurions's BAM1 was the first commercially available instrument. Through continuous development in close collaboration with several research groups, we have continued to improve our technology, culminating in the EP³-BAM series. Cooperation with companies in related fields has also resulted in the development of a range of interdigitizing products - providing tailor made solutions for the demands of state-of-the-art research in organic films.

Accurion EP³-BAM

In addition to their present EP³-BAM, a high end research tool with a lateral resolution of 1 µm we also offer our MicroBAM series for film quality control on aqueous sub-phases with a standard resolution.

Figure 1. EP³BAM

Accurion MicroBAM

The MicroBAM comes with a PC and computer control and image processing software.

Figure 2. MicroBAM

Langmuir Blodgett

Accurion has a long lasting experience in Langmuir-Blodgettry. They have been developing and manufacturing LB instruments for more than 14 years.

Starting in 1991 with the first commercially available Brewster Angle Microscope BAM1, we have constantly extended our product palette. In addition to our BAM series, we offer wide range of LB products: reflection spectroscopy, surface potential sensor, NIMA troughs with pressure sensor and dipper.

Reflection Spectroscopy

Reflection Spectroscopy is a powerful tool in the investigation of the orientation, association, adsorption, and chemical change of chromophores in monolayers at the air-water interface.

Figure 3. Reflection Spectra with RefSPEC²

Figure 4. Surface potential and surface pressure

Thin Films Imaging

The EP³-BAM from Accurion is an ideal thin films imaging system. It is a completely "hands-off" computer-controlled system, using proprietary motor control circuitry.

Brewster Angle Microscopy

The EP³-BAM displays real-time image of your sample directly on the monitor and features important image processing functions. An "objective scanner" provides extended depth-of-field for overall-focused images. The combination of a high power green laser and excellent objectives allows lateral resolutions of 1 micron, the current limit of CCD optical detectors.

Software

The powerful software (under windowsXP) makes operation easy and convenient. As a complete solution, the system comes including the computer, electronics, and all necessary software needed to begin measurements on your existing trough, or with one of our integrated NIMA troughs.

Applications

  • Domains and order phenomena
  • Transformation of monolayer into multilayered structures
  • Photochemical reaction (e.g. photoisomerization)
  • LB-films on solid structures
  • Influences of various subphase compositions (counter-ions) on monolayer structures
  • Polymers and other materials that cannot be detected by fluorescense microscopy
  • Adsorption kinetics
  • In-situ polymerization in monolayer
  • Phase separation
  • Quality and homogeneity of LB-films

Source: Accurion GmbH

For more information on this source please visit Accurion

Date Added: Sep 18, 2007 | Updated: Oct 10, 2011
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