1. Nanoscience & Nanoengineering South Dakota School of Mines & Technology 501 E. Saint Joseph St. Rapid City South Dakota 57701 U.S.A.
2. National Renewable Energy Laboratory 15013 Denver West Pkwy. Golden Colorado 80401 U.S.A.
3. MicroLink Devices, inc. 6457 W. Howard St. Niles Illinois 60714 U.S.A.