Jason Calacanis that published print and online publications. During the dot-com boom, Calacanis was active in New York's Silicon Alley community, and in 1996 began producing the "Silicon Alley Reporter". Originally a 16-page photocopied newsletter, it eventually expanded into a 300-page magazine, with a sister publication called the "Digital Coast Reporter" for the West Coast. Calacanis's socializing earned him a nickname as the "yearbook editor" of the Silicon Alley community. The company also organized conferences in New York, Los Angeles, and San Francisco focused on the Internet, web, and New Media. With the end of the Dot-com bubble, "Silicon Alley Reporter" failed,
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