ZNO MICROTUBES

Microtubes of ZnO have been produced using sputter coating and a fugit ive phase technique. ZnO was sputtered onto polyester fibers by de mag netron sputtering, and the polyester fiber fugitive phase was subseque ntly burned out by annealing in air or oxygen. Tubes with an inside di ameter of 23 mu m and a length of 3 cm were obtained. The 3 to 6 mu m thick walls of the tubes exhibited a [002] radial texture.