@article{oai:nitech.repo.nii.ac.jp:00005257,
 author = {Lau, S. P. and Yang, H. Y. and Yu, S. F. and Li, H. D. and Tanemura, Masaki and Okita, T. and Hatano, H. and Hng, H. H.},
 issue = {1},
 journal = {APPLIED PHYSICS LETTERS},
 month = {Jun},
 note = {An ion-beam technique has been employed to fabricate nanoscale needlelike structures in ZnO thin films on silicon and plastic substrates at room temperature. The ZnO nanoneedles showed a single-crystalline wurtzite structure, the stem of which was around 100 nm in diameter. The sharp tips of the nanoneedles exhibited an apex angle of 20° as measured by transmission electron microscopy. Room-temperature ultraviolet random lasing action was observed in the ZnO nanoneedle arrays under 355 nm optical excitation., application/pdf},
 pages = {013104-1--013104-3},
 title = {Laser action in ZnO nanoneedles selectively grown on silicon and plastic substrates},
 volume = {87},
 year = {2005}
}