PMID: 9438844Jan 28, 1998Paper

Dangling bond dynamics on the silicon (100)-2x1 surface: dissociation, diffusion, and recombination

Science
M McEllistremJ J Boland

Abstract

The dynamics of dangling bond (DB) diffusion was studied after deuterium desorption from the silicon (100)-2x1 surface. At elevated temperatures, paired DB sites produced after desorption unpaired as deuterium atoms hopped from adjacent dimers. Below 620 kelvin, the unpaired configuration most commonly observed corresponded to two DBs on adjacent silicon dimers. At higher temperatures, unpaired DBs executed one-dimensional walks along the dimer rows, and recombination was observed with the same partner after walks lasting many minutes. The frequency and extent of these excursions increased with temperature. Above 660 kelvin, complete dissociation was observed and was sometimes followed by recombination by means of partner exchange. The implications for low-temperature materials growth are discussed.

References

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Jul 29, 1996·Physical Review Letters· de Wijs GA, A Selloni

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Citations

Jun 20, 2012·Journal of the American Chemical Society·Peter M RyanRobert A Wolkow
Feb 17, 2011·The Journal of Chemical Physics·Jason L PittersRobert A Wolkow
Dec 18, 2013·Nanoscale·Yongqing CaiYong-Wei Zhang
Jan 3, 2001·Physical Review Letters·M DürrU Höfer
Sep 8, 2000·Physical Review Letters·V DeryckeJ Gautier
Sep 16, 2000·Physical Review Letters·F M Zimmermann, X Pan
Jul 25, 2018·Nature Communications·Roshan AchalRobert A Wolkow
Apr 21, 2011·Nature Chemistry·K R HarikumarWerner A Hofer
Jan 22, 2002·Physical Review Letters·M DürrT F Heinz
Feb 12, 2011·ACS Nano·Jason L PittersRobert A Wolkow

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