Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

Influence of the metal-semiconductor contact by energy harvesting from vertically aligned zinc oxide nanowires

 
: Comjani, F.F.; Willer, U.; Kontermann, S.; Schade, W.

:

Applied Physics Letters 104 (2014), Nr.14, Art.143113, 6 S.
ISSN: 0003-6951 (Print)
ISSN: 1077-3118
ISSN: 1931-9401 (online)
Englisch
Zeitschriftenaufsatz
Fraunhofer HHI ()

Abstract
This work reports the generation of piezoelectric potential in uniaxially strained zinc oxide (ZnO) nanowires with Ohmic-, symmetric diode-, and rectifying Schottky-like silver-ZnO (Ag-ZnO) contacts. By controlling the synthesis process of the ZnO nanowires, one can control the transport properties of metal-ZnO interfaces. The measurements show the influence of the transport properties of the Ag-ZnO contact on the piezoelectric response of ZnO nanowires. Although the rectifying Schottky contact results in more effective energy harvesting, this is no necessity for operation of a ZnO nanogenerator. Uniaxially strained ZnO nanowires with Ohmic-like Ag-ZnO contacts can also generate measurable piezoelectric signals.

: http://publica.fraunhofer.de/dokumente/N-296337.html