Monolayer doping of germanium by phosphorus-containing molecules

Nanotechnology
F SgarbossaA Carnera

Abstract

The DPP (diethyl 1-propylphosphonate) and ODPA (octadecylphosphonic acid) molecules are studied as precursors for the monolayer doping (MLD) of germanium. Their adsorption behaviour is investigated, revealing different physicochemical interactions between the phosphorus-containing molecules and the Ge surfaces. It is discovered that DPP adsorption occurs after the oxidation of Ge surface, while the ODPA undergoes chemisorption on -H terminated surfaces. Quantitative phosphorus analysis demonstrates that in the first case more than one monolayer is formed (from 2 to 4), while in the second a single monolayer is formed. Moreover, the analysis of phosphorus diffusion from the surface layers into the Ge matrix reveals that conventional thermal annealing processes are not suitable for Ge injection due to a higher activation energy of the process in comparison with silicon. On the contrary, pulsed laser melting is effective in forming a doped layer, owing to the precursor's decomposition under UV light.

References

Dec 18, 2003·Journal of the American Chemical Society·Eric L HansonMehmet Fatih Danisman
Nov 13, 2007·Nature Materials·Johnny C HoAli Javey
May 5, 2012·Journal of the American Chemical Society·Peter ThissenYves J Chabal
May 5, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Abraham VegaYves J Chabal
Jan 22, 2015·ACS Applied Materials & Interfaces·Liang YeJurriaan Huskens
Jun 27, 2015·ACS Applied Materials & Interfaces·John O'ConnellJustin D Holmes
Aug 11, 2015·Nanoscale·Michele PeregoEnrico Napolitani
Jan 21, 2016·Nanotechnology·Elisa ArducaMichele Perego
Mar 30, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Liang YeJurriaan Huskens
May 24, 2017·ACS Applied Materials & Interfaces·Thibault AlphazanBruno Grandidier

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Citations

Mar 7, 2021·Nanomaterials·Luca SeravalliMatteo Bosi
Mar 16, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Maria Victoria Heiderick MachadoAngelo Malachias

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