Rapid fabrication technique for interpenetrated ZnO nanotetrapod networks for fast UV sensors.

Gedamu, Dawit; Paulowicz, Ingo; Kaps, Sören; Lupan, Oleg; Wille, Sebastian; Haidarschin, Galina; Mishra, Yogendra Kumar; Adelung, Rainer · Adv Mater · 2014

basic_science · Level V

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Abstract

Two flame-based synthesis methods are presented for fabricating ZnO-nanostructure-based UV photodetectors: burner flame transport synthesis (B-FTS)and crucible flame transport synthesis (C-FTS). B-FTS allows rapid growth of ZnO nanotetrapods and in situ bridging of them into electrical contacts. The photo detector made from interconnected ZnO nanotetrapod networks exhibits fast response/recovery times and a high current ratio under UV illumination.