June 13, 2007 - Participating are some of the best-known and established VC firms in the industry— Kleiner Perkins Caufield & Byers, Battery Ventures, TPG Growth, Mohr Davidow Ventures and Rustic Canyon Partners. Miasole (www.miasole.com) manufactures a thin-film photovoltaic cell that consists of an ultra-thin layer of photoactive material on a stainless steel foil only 50 microns thick.