| dc.contributor.author | LUNNEY, JAMES GERARD | |
| dc.date.accessioned | 2009-07-10T12:08:16Z | |
| dc.date.available | 2009-07-10T12:08:16Z | |
| dc.date.issued | 2006 | |
| dc.date.submitted | 2006 | en |
| dc.identifier.citation | G. Tobin, E. McGlynn. M.O. Henry, J.-P. Mosnier, E.de Posada and J. G. Lunney 'Effects of excitonic diffusion on stimulated emission in nanocrystalline ZnO' in Applied Physics Letters, 88, (7), 2006, pp 071919-1 - 071919-3 | en |
| dc.identifier.other | Y | en |
| dc.identifier.other | Y | |
| dc.description | PUBLISHED | en |
| dc.description.abstract | We present optically pumped emission data for ZnO, showing that high excitation effects and
stimulated emission/lasing are observed in nanocrystalline ZnO thin films at room temperature,
although such effects are not seen in bulk material of better optical quality. A simple model of
exciton density profiles is developed which explains our results and those of other authors.
Inhibition of exciton diffusion in nanocrystalline samples compared to bulk significantly increases
exciton densities in the former, leading?via the nonlinear dependence of emission in the exciton
bands on the pump intensity?to large increases in emission and to stimulated emission. | en |
| dc.description.sponsorship | The authors acknowledge the support of an Enterprise
Ireland Basic Research Grant and funding under NDP. | en |
| dc.format.extent | 186823 bytes | |
| dc.format.extent | 071919-1 | en |
| dc.format.extent | 071919-3 | en |
| dc.format.mimetype | application/pdf | |
| dc.language.iso | en | en |
| dc.publisher | American Institute of Physics | en |
| dc.relation.ispartofseries | Applied Physics Letters | en |
| dc.relation.ispartofseries | 88 | en |
| dc.relation.ispartofseries | 7 | en |
| dc.rights | Y | en |
| dc.subject | Physics | en |
| dc.title | Effects of excitonic diffusion on stimulated emission in nanocrystalline ZnO | en |
| dc.type | Journal Article | en |
| dc.type.supercollection | scholarly_publications | en |
| dc.type.supercollection | refereed_publications | en |
| dc.identifier.peoplefinderurl | http://people.tcd.ie/jlunney | |
| dc.identifier.rssinternalid | 33486 | |
| dc.identifier.rssuri | http://dx.doi.org/10.1063/1.2174107 | |
| dc.contributor.sponsor | Enterprise Ireland | |
| dc.identifier.uri | http://hdl.handle.net/2262/31466 | |
