Activation of surface hydroxyl groups by modification of H-terminated Si(111) surfaces

Journal of the American Chemical Society
Peter ThissenYves J Chabal

Abstract

Chemical functionalization of semiconductor surfaces, particularly silicon oxide, has enabled many technologically important applications (e.g., sensing, photovoltaics, and catalysis). For such processes, hydroxyl groups terminating the oxide surface constitute the primary reaction sites. However, their reactivity is often poor, hindering technologically important processes, such as surface phosphonation requiring a lengthy postprocessing annealing step at 140 °C with poor control of the bonding geometry. Using a novel oxide-free surface featuring a well-defined nanopatterned OH coverage, we demonstrate that hydroxyl groups on oxide-free silicon are more reactive than on silicon oxide. On this model surface, we show that a perfectly ordered layer of monodentate phosphonic acid molecules is chemically grafted at room temperature, and explain why it remains completely stable in aqueous environments, in contrast to phosphonates grafted on silicon oxides. This fundamental understanding of chemical activity and surface stability suggests new directions to functionalize silicon for sensors, photovoltaic devices, and nanoelectronics.

References

Oct 15, 1996·Physical Review. B, Condensed Matter·G Kresse, J Furthmüller
May 9, 2002·Chemical Reviews·Jillian M Buriak
Dec 18, 2003·Journal of the American Chemical Society·Eric L HansonMehmet Fatih Danisman
Apr 14, 2005·Chemical Reviews·J Christopher LoveGeorge M Whitesides
Apr 8, 2006·The Journal of Physical Chemistry. B·Lauren J WebbNathan S Lewis
Jul 13, 2006·Langmuir : the ACS Journal of Surfaces and Colloids·Aparna RamanEllen S Gawalt
Jul 21, 2006·The Journal of Physical Chemistry. B·David B Asay, Seong H Kim
Jan 24, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Ioannis L LiakosMorgan R Alexander
Aug 30, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Rosalynn Quiñones, Ellen S Gawalt
Sep 1, 2007·Analytica Chimica Acta·D K AswalD Vuillaume
Jul 18, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·M GizaG Grundmeier
Dec 17, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Peter ThissenGuido Grundmeier
Dec 31, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Aparna RamanEllen S Gawalt
Jan 12, 2010·Nature Materials·David J MichalakYves J Chabal
Mar 11, 2010·Advanced Materials·Ayelet VilanDavid Cahen
Aug 26, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Manish DubeyDavid G Castner
Apr 15, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Michael MaxischGuido Grundmeier

❮ Previous
Next ❯

Citations

Jul 17, 2015·ACS Nano·Fatemeh Sadat Minaye HashemiStacey F Bent
Dec 22, 2016·ACS Applied Materials & Interfaces·Peter ThissenRoberto C Longo
Oct 8, 2014·ACS Applied Materials & Interfaces·Chaiya PrasittichaiStacey F Bent
Jul 4, 2017·ACS Applied Materials & Interfaces·Anna Cattani-Scholz
Aug 21, 2018·Nanoscale·Jinjun LinEdwin Hang Tong Teo
Sep 1, 2018·Nanotechnology·F SgarbossaA Carnera
Oct 24, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Chieh-Hua LeeYit Lung Khung
Feb 13, 2016·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Li-Hong LiuYves J Chabal
Apr 14, 2017·Chemistry of Materials : a Publication of the American Chemical Society·Alfredo MameliFred Roozeboom
Nov 21, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Peter ThissenYves J Chabal
Jan 17, 2020·ACS Applied Materials & Interfaces·Shuai WuJianbin Luo
Aug 14, 2020·Langmuir : the ACS Journal of Surfaces and Colloids·Peter Thissen
Nov 15, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Gillian CollinsColm O'Dwyer

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.