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Controlling the properties of layered self-organized Ge clusters in silica matrix
Pinto, S. R. C.; Roldan, M. A.; Buljan, Maja; Bernstorff, S.; Chahboun, A.; Barradas, N. P.; Alves, E.; Molina, S. I.; Ramos, Marta M. D.Comunicação em poster no simposio M - More than Moore: Novel materials approaches for functionalized Silicon based Microelectronics ; Si and Ge nanocrystals (NCs) embedded in a dielectric matrix, such as SiO2, have attracted great interest for many relevant technological applications. There are many studies about Ge NCs embedded in single layer of SiO2 [1]. However, there are only a few published results about...
Low-temperature fabrication of layered self organized ge clusters by RF-sputtering
Pinto, S. R. C.; Rolo, Anabela G.; Buljan, M.; Chahboun, A.; Bernstorff, S.; Barradas, N. P.; Alves, E.; Kashtiban, R. J.; Bangert, U.; Gomes, M. J. M.In this article, we present an investigation of (Ge + SiO2)/SiO2 multilayers deposited by magnetron sputtering and subsequently annealed at different temperatures. The structural properties were investigated by transmission electron microscopy, grazing incidence small angles X-ray scattering, Rutherford backscattering spectrometry, Raman, and X-ray photoelectron spectroscopies. We show a formation of self-assem...
A microscopy study of germanium nanoparticules produced by pulsed laser deposition
Martín-Sánchez, J.; Marques, L.; Pinto, S. R. C.; Vieira, E. M. F.; Rolo, Anabela G.; Chahboun, A.; Ramos, Marta M. D.; Gomes, M. J. M.Comunicação oral ; Semiconductor nanoparticles (NPs) are of great interest for multiple applications in the fields of photonics, optoelectronics, photovoltaics and biomedicine [1]. The ability to manage properly the size distribution and density in the fabrication process is of crucial relevance. In the literature, it can be found a large number of strategies for NPs production, including physical vapour depos...
Ge nanoparticles produced by Pulsed Laser Deposition: morphological, structural...
Martín-Sánchez, J.; Marques, L.; Pinto, S. R. C.; Vieira, E. M. F.; Rolo, Anabela G.; Chahboun, A.; Ramos, Marta M. D.; Senra, Rosalía; Toudert, JohannApresentação em poster ; Semiconductor nanometer-sized particles (nanoparticles, NPs) have been widely investigated due to their unique size dependent properties. The interest in Ge NPs is recently increasing because of their interesting physical properties such as large carrier mobility, large Bohr exciton radius and near-direct band gap that are suitable for the development of advanced optoelectronic devices...
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