A monohydride high-index silicon surface: Si(114):H-(2×1)

Abstract

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Evaluation of Surface Cleaning of Si(211) for Molecular-Beam Epitaxy Deposition of Infrared Detectors

“…It has been shown that Si(114) could be successfully hydrogenated with a well-ordered, low-defect-density monohydrate at about 400°C during atomic hydrogen exposure. 16 A similar study was performed on the interaction of atomic hydrogen with a reconstructed nanofaceted Si(211) surface. 17 Molecular-beam epitaxy (MBE) of HgCdTe infrared detector structures for two-color thermal imaging system requires (211) substrate orientation.…”

Irreversible structural transformation of Si(1 1 4)-2 × 1 induced by subsurface carbon

“…Among them, the Si(1 1 4) surface is known to have the simplest and single-domain structure composed of dimer (D), rebonded atom (R), and tetramer (T) rows [22][23][24]. Until now, several adsorption studies on Si(1 1 4) have been performed: hydrogen passivation for enhancing the potential of Si(1 1 4) as a substrate for homoepitaxy [25,26], the dissociative chemisorption of Cl 2 as a template for patterning via halogen-etching [27], and C 2 H 4 chemisorption for the development of methods to incorporate functional organic nanostructures onto semiconductor substrates for electronic and optoelectronic device applications [28]. But, the previous C 2 H 4 chemisorption study on Si(1 1 4) is limited to adsorption at room temperature (RT), which is not enough to achieve saturated C incorporation obtained at high temperatures.…”

Chemical Structure and Orientation of Ethylene on Si(114)−(2×1)/c(2×2)

“…5 Although more complex than Si(001)-(2×1), 8,9 the clean Si(114) surface reconstruction includes only two additional structural elements in addition to the dimer row. Moreover, the surface can be monohydride terminated with little change in the surface structure, 10 suggesting that ordered chemisorbed monolayers might be possible despite the presence of multiple potential chemisorption geometries. As displayed in Figure 1, the Si(114)-(2×1) surface consists of periodic rows of rebonded (001)-like "B-type" double-layer steps, tetramers, and (001)-like dimers.…”