The LPE system enables the growth of thick epitaxial layers of III-V semiconductors, which can be later fabricated into laser diodes, photodetectors and other optoelectronic devices. The epitaxial-grown samples can be fabricated into high performance optoelectronic devices. The LB film system allows for the repeated coating of monolayer thickness of organic thin films for organic optical device development. This electropolymerisation deposition system consists essentially of a potentiostat and an electrochemical cell. The potentiosat is a power amplifier with a regulated voltage or current output, and this output can be constant or it can be a pre-programmed voltage or current waveform.
Deposition occurs at the working electrode when the cell is connected to the potentiostat.
Metal contacts are necessary for any optoelectronic device and they can be deposited by the above evaporation system based on electron-beam incidence. Metals that can be coated include gold, aluminium and other pure metals. The rapid thermal processor enables the annealing to be accomplished in a very short time without the delay normally associated with usual furnaces. Heating is achieved by halogen lamp arrays irradiation in a gold-coated, cold wall, reflected chamber. The excimer laser emits deep UV light, with the exact wavelength determined by the gas used.