Nanoscale elastic modulus of single horizontal ZnO nanorod using nanoindentation experiment
2012 (English)In: Nanoscale Research Letters, ISSN 1931-7573, E-ISSN 1556-276X, Vol. 7, 146-148 p.Article in journal (Refereed) Published
We measure the elastic modulus of a single horizontal ZnO nanorod [NR] grown by a low-temperature hydrothermal chemical process on silicon substrates by performing room-temperature, direct load-controlled nanoindentation measurements. The configuration of the experiment for the single ZnO NR was achieved using a focused ion beam/scanning electron microscope dual-beam instrument. The single ZnO NR was positioned horizontally over a hole on a silicon wafer using a nanomanipulator, and both ends were bonded with platinum, defining a three-point bending configuration. The elastic modulus of the ZnO NR, extracted from the unloading curve using the well-known Oliver-Pharr method, resulted in a value of approximately 800 GPa. Also, we discuss the NR creep mechanism observed under indentation. The mechanical behavior reported in this paper will be a useful reference for the design and applications of future nanodevices.
Place, publisher, year, edition, pages
Springer, 2012. Vol. 7, 146-148 p.
Ceramics Physical Sciences
IdentifiersURN: urn:nbn:se:liu:diva-88523DOI: 10.1186/1556-276X-7-146PubMedID: 22353250OAI: oai:DiVA.org:liu-88523DiVA: diva2:604676