News Column

Findings from Wuhan University Provides New Data about Nanoparticles (Morphology-engineered strain transformation in Ge/GeO2 core/shell nanoparticles)

July 23, 2014

By a News Reporter-Staff News Editor at Journal of Engineering -- Investigators discuss new findings in Nanoparticles. According to news originating from Hubei, People's Republic of China, by VerticalNews correspondents, research stated, "Growth of nanoparticles embedded in a host matrix can lead to substantial strain. Ge/GeO2 core/shell nanoparticles embedded in amorphous Al2O3 matrix is fabricated by the pulsed laser deposition method and rapid thermal annealing technique, which is confirmed by the experimental HRTEM result and consistent with Zhdanov's theoretical prediction."

Our news journalists obtained a quote from the research from Wuhan University, "A finite-element calculation is performed to investigate the tuning effect on the strain by the morphology evolution of the Ge/GeO2 core/shell nanoparticle embedded in Al2O3 matrix. The simulated result indicates that the strain at the interface between the core and the shell strongly depends on the morphology of the nanoparticles. Moreover, it can be found that there is a dramatic transformation of the strain on Ge core from tensile to compressive strain during the shrinkage of Ge core and the expansion of GeO2 shell."

According to the news editors, the research concluded: "The simulated results indicate that the strain can be designed by tuning the morphology of the nanoparticles, which provides an opportunity to engineer the properties of the nano-sized core/shell structures."

For more information on this research see: Morphology-engineered strain transformation in Ge/GeO2 core/shell nanoparticles. Physica E-Low-Dimensional Systems & Nanostructures, 2014;60():100-103. Physica E-Low-Dimensional Systems & Nanostructures can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands.

The news correspondents report that additional information may be obtained from Z.X. Jiang, Wuhan University, Inst Microelect & Informat Technol, Wuhan 430072, Hubei, People's Republic of China. Additional authors for this research include Y. Zhang, H.H. Huang, X.S. Liu, C.L. Yuan, G. Gu and S.L. Ye.

Keywords for this news article include: Asia, Hubei, Engineering, Nanotechnology, Emerging Technologies, People's Republic of China

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC

For more stories covering the world of technology, please see HispanicBusiness' Tech Channel

Source: Journal of Engineering

Story Tools Facebook Linkedin Twitter RSS Feed Email Alerts & Newsletters