Abstract
Recently, it has been shown that higher performance within the silicon-based technology can be obtained by using Si-Ge alloys in both strained and unstrained configurations. For instance, very high electron mobilities can be obtained in a strained Si quantum well structure formed by CVD deposition of Si on a relaxed Ge30Si70 substrate. [1] In addition, there remains the more difficult goal of obtaining optically active device structures within the Si-based technology. [2] In each of these cases, the relevant electronic structure of the device is completely dependent on the local structure, composition, and strain within a few Angstrom units of an internal interface. In the past, electron microscopy has been very successful at determining the local structure of buried interfaces and defects, but has not provided a good tool for measurement of either the bonding or the electronic structure in the same areas. Spatially Resolved EELS has therefore been devised as a technique to obtain the bulk electronic structure in a way that is compatible with electron microscopy so that direct comparisons can be made between electronic and atomic structure.
© 1995 Optical Society of America
PDF ArticleMore Like This
G. Boudarham, M. Kociak, O. Stéphan, C. Colliex, N. Feth, S. Linden, M. Wegener, V. Myroshnychenko, and F. J. Garcia de Abajo
CFM7 Conference on Lasers and Electro-Optics (CLEO:S&I) 2010
H.N. Frase, S.S. Wong, C.C. Ahn, and H.A. Atwater
MFA4 Microphysics of Surfaces: Nanoscale Processing (MSBA) 1995
C. N. Hsiao, Y. W. Lin, W. C. Chen, P. K. Chiu, C. P. Lin, and F. Z. Chen
CE_P_23 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2017