AGS-Energy
Building a new World with environmentally clean and renewable energy technologies
Solar Manufacturing Standard semiconductor manufacturing equipment is used for most part. To understand the basic structure of a solar cell, please scroll your mouse over the picture on right and click to magnify it. Very briefly a conventional monocrystalline silicon solar cell is manufactured as follows: 1. Slice silicon ingots into wafers (180-350 micrometer) 2. Dope p-type using Boron dopant. 3. n-type dopant is diffused to form pn junction 4. Surface is textured to capture more of the oncoming light and A SiN antireflection coating is put on using PECVD (Plasma Enhanced chemical Vapor Deposition) 5. Aluminum full area metal contact is formed on the back surface and using silver paste, grid-like metal contacts are formed on the front surface using screen printing. 6. Baking takes place to form good ohmic contacts. 7. Make panels using tempered glass on front and polymer encapsulation on the back. There are several cleaning and other processes such as testing in between these. For simplicity we have not listed them here. Also please note that there are other solar cell manufacturing techniques such as thin film which depend on the particular materials chosen and due to complexity and variances it is not explained here. Renewable Energy Products and Services in New Mexico |
