Silicon Peach Silicon Peach Silicon Peach is a term used to refer to Atlanta, Ga. and the concentration of high tech development in the area. The term is a continuation of the reference following Silicon Valley (California), Silicon Alley (New York), then Silicon Beach (Los Angeles). Atlanta has long been a high tech center. Some of the traditional engines of technology development in Atlanta have been the ATDC at the Georgia Institute of Technology and the Technology Association of Georgia (TAG). New centers of innovation and technology acceleration are emerging, including the recent launch of the Atlanta Tech Village; the Ponce City
Polycrystalline silicon grain boundaries, see figure 1. The resistivity, mobility, and free-carrier concentration in monocrystalline silicon vary with doping concentration of the single crystal silicon. Whereas the doping of polycrystalline silicon does have an effect on the resistivity, mobility, and free-carrier concentration, these properties strongly depend on the polycrystalline grain size, which is a physical parameter that the material scientist can manipulate. Through the methods of crystallization to form polycrystalline silicon, an engineer can control the size of the polycrystalline grains which will vary the physical properties of the material. The use of polycrystalline silicon in the production of solar cells requires