KIT | KIT-Bibliothek | Impressum
Open Access Logo

Enhancement of the near-band-edge photoluminescence of ZnO nanowires: Important role of hydrogen incorporation versus plasmon resonances

Dev, A.; Richters, J. P.; Sartor, J.; Kalt, H.; Voss, T.; Gutowski, J.

We investigated the photoluminescence properties of ZnO nanowires coated with Au, Ag, and Pt nanoparticles deposited by dc sputtering. A strong enhancement of the near-band-edge emission was observed in all metal-coated samples but also if the samples were treated with Ar plasma without any nanoparticle deposition. High-resolution photoluminescence spectroscopy revealed hydrogen-donor-bound-exciton emission in all samples indicating unintentional hydrogen incorporation. A shorter decay time of the near-band-edge emission was observed in all cases. The results indicate that unintentional hydrogen incorporation plays a dominant role when metal deposition is performed by sputtering.

Zugehörige Institution(en) am KIT Institut für Angewandte Physik (APH)
Publikationstyp Zeitschriftenaufsatz
Jahr 2011
Sprache Englisch
Identifikator ISSN: 0003-6951
KITopen ID: 1000027107
Erschienen in Applied Physics Letters
Band 90
Heft 13
Seiten 131111/1 - 3
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft KITopen Landing Page