Photovoltaic cells directly convert sunlight into power through the use of silicones, which are known for their ability to conduct electricity. When sunlight hits the photovoltaic cells, the electrons become excited, and begin moving at extremely high rates, leading to electricity production that powers numerous devices. Semiconductor manufacturing companies understand that photovoltaic cells are a great source of electricity, and continue to research in order to strengthen the efficiency of these cells. Not only will improvements in photovoltaic performance lead to quicker production of energy, but it will also result in cheaper generation costs.
The semiconductor manufacturing company has made strides in the performance of photovoltaic cells by adjusting designs in order to allow spectral absorption to spread to greater wavelengths. One of the most utilized changes in design includes the addition of quantum wells and dots, created using epitaxial processes, to confine electrons and holes in both one and three dimensions.
Dots are created by placing a material with a large lattice onto a substrate with a lattice of a smaller size. The larger lattice begins to grow in an upward layer, and directly bases its spacing on the size of the smaller lattice. To avoid excess stress on the substrates, it is important that the semiconductor manufacturing company keep the thickness of the materials below a specific measurement, so the lattices are able to work together and perform at the highest possible level. If the growth of the lattice exceeds the set measurement of thickness, quantum dots form along with a two-dimensional layer, called a quantum well, to help absorb excess wetness.
While dots and quantum wells greatly improve performance of photovoltaic cells, they still have a rather low absorption level, meaning efficiency can be improved even further. To increase absorption levels, the semiconductor manufacturing company uses light processing to increase the optical thickness of the quantum well. Two techniques used to improve efficiency of dots and quantum wells include plasmonic light trapping and grating.
As a business in the semiconductor industry, it is important that you continuously improve upon your processes to gain the highest efficiency levels possible. As stated above, adjusting structures with dots and quantum wells, and increasing absorption levels using light processing will help you to create the most effective photovoltaic performance.
If you are interested in creating efficient and effective operations in the semiconductor manufacturing industry, look no further than Shin-Etsu MicroSi. We are always on the cusp of the latest technologies, and offer our customers only the highest quality products to help them maximize the output of their operations. For more information on photovoltaic performance or any other semiconductor manufacturing question or concern, please call Shin-Etsu MicroSi at (480) 893-8898 or contact us online.