Department of Physics, Wake Forest University, Winston Salem, NC 27109 - 7507, USA;
Pacific Northwest National Laboratory, P. O. Box 999, K8 - 88, Richland, WA 99352, USA;
Department of Physics, Wake Forest University, Winston Salem, NC 27109 - 7507, USA;
Department of Physics, Wake Forest University, Winston Salem, NC 27109 - 7507, USA;
Department of Physics, Wake Forest University, Winston Salem, NC 27109 - 7507, USA;
Physics Department, University of Science and Technology of China, Hefei Anhui 230026, China;
Physics Department, University of Science and Technology of China, Hefei Anhui 230026, China;
ZnO; atomic force microscopy; sputtering; pulsed laser deposition; luminescence;