Abstract
White light luminescence and room-temperature lasing throughout the visible are demonstrated for ZnO nanocolumns grown on Au-coated tin-oxide glass. The directionality of the emission, the lasing threshold, and the observed mode spacing are all consistent with Fabry-Pérot lasing cavities. The Figure shows a cross-sectional SEM image of ZnO nanocolumns with an average nanocolumn length of ∼ 3 μm.
Original language | English |
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Pages (from-to) | 1179-1224 |
Number of pages | 45 |
Journal | Advanced Materials |
Volume | 14 |
Issue number | 17 |
DOIs | |
Publication status | Published - 3 Sept 2002 |