Journal article
Photoinduced formation of zinc nanoparticles by UV laser irradiation of ZnO
Langmuir, Vol.25(4), pp.1930-1933
02/17/2009
Handle:
https://hdl.handle.net/2376/107428
PMID: 19199714
Abstract
Simple exposure of single-crystal ZnO to 193 nm excimer laser radiation at room temperature results in unexpected coloration. The gray to nearly black colored material, seen principally in the irradiated laser spot, is superficial. We present unambiguous evidence that this coloration is due to high densities of metallic Zn nanoparticles growing on the exposed surface of the crystal. Higher fluence laser exposure generates accumulated surface metal just outside of the irradiated spot. We suggest that the near surface bulk is photodecomposing; thermally driven diffusion leads to surface Zn metal aggregation.
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Details
- Title
- Photoinduced formation of zinc nanoparticles by UV laser irradiation of ZnO
- Creators
- E H Khan - Department of Physics and Astronomy, Washington State University, Pullman, Washington 99164-2814, USAS C LangfordJ T DickinsonLynn A BoatnerWayne P Hess
- Publication Details
- Langmuir, Vol.25(4), pp.1930-1933
- Academic Unit
- Physics and Astronomy, Department of
- Publisher
- United States
- Identifiers
- 99900547572301842
- Language
- English
- Resource Type
- Journal article