AXT, Inc., a company that manufacturers compound semiconductor substrates, publicized its charter membership in the CPV Consortium, a global industry organization that aids the growth and long-term success of the concentrator photovoltaics (CPV) industry with the aim to provide a low-cost, dependable source of energy. APX joins 3M, Concentrix, Emcore, ISFOC, Isofoton, Solfocus and Veeco as members.