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O: Fachverband Oberflächenphysik

O 33: Nanostructures at surfaces: arrays

O 33.5: Vortrag

Dienstag, 23. März 2010, 16:00–16:15, H31

Optical properties of nanopore arrays based on porous alumina — •Hongdan Yan^1,2, Dirk Wulferding^1,2, Peter Lemmens^1,2, Jianmin Shi³, Klaus-Dieter Becker³, Frank Ludwig^4,2, and Meinhard Schilling^4,2 — ¹IPKM, TU-BS, Braunschweig — ²IGSM, TU-BS, Braunschweig — ³IPTC, TU-BS, Braunschweig — ⁴EMG, TU-BS, Braunschweig

Anodic alumina templates with nanopores show photoluminescence peaks and optical absorption that can be divided into three Gaussian bands. Two kinds of oxygen vacancy centers are responsible for these processes. The defects can be tuned using thermal annealing. Work supported by DFG and B-IGSM.