Low temperature synthesis of Ge nanocrystals in SiO[sub 2]

Craciun, Valentin; Boyd, Ian W.
December 1994
Applied Physics Letters;12/19/1994, Vol. 65 Issue 25, p3233
Academic Journal
Describes a technique for the synthesis of germanium nanocrystals embedded in silicon dioxide. Compatibility of the method with silicon microelectronic technology; Reliance of the technique upon low temperature ultraviolet oxidation of Si[sub 0.8]Ge[sub 0.2] strained layers; Crystalline structure of the nanoparticles.


Related Articles

  • Dynamics of optical nonlinearity of Ge nanocrystals in a silica matrix. Jie, Y. X.; Jie, Y.X.; Xiong, Y. N.; Xiong, Y.N.; Wee, A. T. S.; Wee, A.T.S.; Huan, C. H. A.; Huan, C.H.A.; Ji, W. // Applied Physics Letters;12/11/2000, Vol. 77 Issue 24 

    The optical nonlinearity and excited carrier lifetime in Ge nanocrystals (nc-Ge) embedded in a silica matrix have been investigated by means of single beam z scan and pump-probe techniques with laser pulse duration of 35 ps and 532 nm wavelength. The nc-Ge samples were prepared using magnetron...

  • Quantum confinement in germanium nanocrystals. Niquet, Y. M.; Niquet, Y.M.; Allan, G.; Delerue, C.; Lannoo, M. // Applied Physics Letters;8/21/2000, Vol. 77 Issue 8 

    The electronic structure of Ge nanocrystals is studied using a sp[sup 3] tight binding description. Analytical laws for the confinement energies, valid over the whole range of sizes, are derived. We validate our results with ab initio calculations in the local density approximation for smaller...

  • Nonlinear optical response of Ge nanocrystals in a silica matrix. Dowd, A.; Elliman, R.G. // Applied Physics Letters;1/11/1999, Vol. 74 Issue 2, p239 

    Studies the non-linear optical response of Ge nanocrystallites embedded in a silica matrix with the use of time-resolved degenerate-four-wave-mixing measurements. Fabrication of nanocrystals by ion-implanting silica with MeV Ge ions.

  • Sharp photoluminescence of CdSeS nanocrystals embedded in silica glass. Wang, Y. S.; Sun, P.; Wang, Y. H.; Wang, R. Z.; Zheng, D.; Li, Y. L. // Applied Physics Letters;1/6/2003, Vol. 82 Issue 1, p49 

    CdSeS nanocrystals were grown by annealing silica glass with supersaturated Cd, Se, S at temperatures of 550-800 °C. The linear absorption spectra, photoluminescence (PL) spectra, and photoluminescence excitation spectra were measured. Sharp PL peaks superposed on broadened PL spectra were...

  • Fabrication and Postprocessing of Ge-Doped Nanoweb Fibers. Torres-Peiró, S.; Díez, A.; Cruz, J. L.; Andrés, M. V. // AIP Conference Proceedings;10/1/2008, Vol. 1055 Issue 1, p50 

    The stack and draw technique provides an enormous flexibility and permits to obtain rather complex photonic crystal fibers and other nanoweb structures. It is possible to fabricate Ge-doped microstructured fibers combining silica capillaries and doped wires of silica glass. Here, we will present...

  • X-ray characterization of Ge epitaxially grown on nanostructured Si(001) wafers. Zaumseil, P.; Yamamoto, Y.; Bauer, A.; Schubert, M. A.; Schroeder, T. // Journal of Applied Physics;Jan2011, Vol. 109 Issue 2, p023511 

    Selective growth of Ge on nanostructured Si(001) wafers is studied to evaluate the applicability of nanoheteroepitaxy approaches on the Ge-Si system for photonics applications under particular consideration of possible growth mask materials. A gate spacer technology established in advanced...

  • Self-assembled three-dimensional structures of single-crystalline ZnS submicrotubes formed by coalescence of ZnS nanowires. Shen, Guozhen; Bando, Yoshio; Golberg, Dmitri // Applied Physics Letters;3/20/2006, Vol. 88 Issue 12, p123107 

    Self-assembled three-dimensional (3D) dandelionlike ZnS structures have been successfully synthesized by a simple thermochemical process using ZnS and Ge powders as the source material. The as-synthesized dandelionlike structures consist of radially aligned ZnS submicrotubes with well-faceted...

  • Femtosecond-laser Nanostructuring in Glass. Yasuhiko SHIMOTSUMA; Taiga ASAI; Masaaki SAKAKURA; Kiyotaka MIURA // Journal of Laser Micro / Nanoengineering;Mar2014, Vol. 9 Issue 1, p31 

    We demonstrate the polarization-dependent anisotropy of the laser induced nanostructures inside SiO2 and GeO2 glass. Such nanostructures show form birefringence which is controllable by the femtosecond double-pulse configuration. In the case of SiO2 glass, we have also demonstrate polarization...

  • Proton-implantation-induced nanosized Ge crystal formation in SiO2:GeO2 glasses. Kawamura, Ken-ichi; Hosono, Hideo; Kawazoe, Hiroshi // Journal of Applied Physics;8/1/1996, Vol. 80 Issue 3, p1357 

    Discusses a study that examined the formation of proton-implantation-induced nanosized germanium crystal in silicon dioxide: germanium dioxide glasses. Experimental details; Formation of germanium colloid by proton implantation; Results of the study.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics