U.S.: Microwaves Help Develop Cheaper Solar Technology

The microwave technology used by Volkswagen to heat overnight meals has gained important applications in the solar industry. The technology provides a new way to produce thin film photovoltaic products using less energy, lower cost and more environmental protection.

Engineers at Oregon State University have for the first time developed a method for heating copper-zinc-tin-sulfur composites using microwaves. The composition is a promising solar cell complex and other composites used to produce solar photovoltaic panels. In comparison, it is cheaper and less toxic.

The results of the study were published in the professional journal Physica Status Solidi A.

According to Greg Herrman, associate professor of environmental chemistry at the Oregon State University’s School of Chemical Biology, the ingredients in this new compound are non-toxic and inexpensive. In addition, solar cells produced with these ingredients should perform well.

He said: With the price of other compound alternatives such as indium containing more expensive metals continue to rise, some companies are looking to this direction. With the increase in the conversion efficiency of the battery produced by this raw material, this new compound should become very commercially attractive.

These thin-film photovoltaic technologies provide a method for mass-producing solar cells at low cost. This new method is like the ink containing nanoparticles, the ink can use the well-known ink-jet printing method to scatter or roll these inks to make solar panels.

To further simplify this process, scientists have successfully used microwave heating instead of traditional heating methods to reduce the reaction time from minutes to seconds, while enabling better control of the production process. The researchers said: "This kind of 'pot cooking' compound is produced rapidly, is cheap and has low energy consumption, and has been successfully applied to produce nano-ink for photovoltaic devices.

Hermann said: "Compared to traditional synthetic methods, this method should be cheaper and easier to commercialize on a large scale. Microwave technology can bring more accurate control of temperature and energy to achieve what we need." Ideal response." (Compiled: Puresky)

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A weather station is a facility, either on land or sea, with instruments and equipment for measuring atmospheric conditions to provide information for weather forecasts and to study the weather and climate. The measurements taken include temperature, atmospheric pressure, humidity, wind speed, wind direction, and precipitation amounts. Wind measurements are taken with as few other obstructions as possible, while temperature and humidity measurements are kept free from direct solar radiation, or insolation. Manual observations are taken at least once daily, while automated measurements are taken at least once an hour. Weather conditions out at sea are taken by ships and buoys, which measure slightly different meteorological quantities such as sea surface temperature, wave height, and wave period. Drifting weather buoys outnumber their moored versions by a significant amount.

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