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