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Optimizing investments

In the laboratories of the Semiconductor Group of UFSCar, coordinated by José Cláudio Galzerani, the resources of the Infrastructure Program financed the renovation of the floors, ceilings, benches, and the construction of new partitions, creating a solution to critical problems for the working of sophisticated optical equipment. The lasers had been operating without adequate refrigeration, which represented a serious risk. However, the most serious problem was in the laboratory of the Raman spectroscope. “Without adequate refrigeration and air conditioning, the equipment was working below the specifications recommended by the manufacturer”, recalls Galzerani. The installations hardly allowed for the operation of a second spectrometer.

Today, the two spectroscope laboratories have been totally remodeled and equipped with air conditioning, more stable benches, new electrical circuits and adequate refrigeration. Another positive point was the construction of a clean room for the preparation of samples. “Now we have a fume cupboard, laminar flow and adequate temperature, which are the essential conditions for the handling of these materials”, adds Galzerani. He is working with nanostructures, materials artificially produced whose main application is the production of optical electronic devices such as lasers and computer memories.

Over the last few years, Galzerani has been dedicating himself to the study of semiconductor super-networks – extremely fine layers, growing practically atom upon atom, which are placed in an alternating manner. “It is essential to understand the electrical and optical characteristics of these new materials, since they have excellent potential for the advance of the optical electronics industry”, explains the researcher.