Isolation of cubic Si₃P₄ in the form of nanocrystals

• Polina K. Nikiforova,
• Sergei S. Bubenov,
• Vadim B. Platonov,
• Andrey S. Kumskov,
• Nikolay N. Kononov,
• Tatyana A. Kuznetsova and
• Sergey G. Dorofeev

Beilstein J. Nanotechnol. 2023, 14, 971–979, doi:10.3762/bjnano.14.80

• were conducted. A synthesis at 400 °C was performed in order to observe the influence of hydrogen preservation on the process of formation of the new compound as well as to attempt postsynthetic hydrosilylation to protect the particle cores from air and moisture. A temperature range of 400 to 500 °C

• gradually form on the surface oxide layer to prevent combustion. In an attempt to prevent hydrolysis/oxidation, a quartz ampoule with NPs synthesized at 400 °C was opened inside an evacuated and sealed copper ampoule partially filled with octadecene. Hydrosilylation was carried out for 30 min at 315 °C. In

Phosphorus monolayer doping (MLD) of silicon on insulator (SOI) substrates

• Noel Kennedy,
• Ray Duffy,
• Luke Eaton,
• Dan O’Connell,
• Scott Monaghan,
• Shane Garvey,
• James Connolly,
• Chris Hatem,
• Justin D. Holmes and
• Brenda Long

Beilstein J. Nanotechnol. 2018, 9, 2106–2113, doi:10.3762/bjnano.9.199

• ][8], germanium [9][10][11] and others [12]. MLD involves the use of surface chemistry to provide a source of dopant atoms for diffusion into the substrate. Figure 1 shows a schematic version of the steps involved in a MLD process. The most commonly used reaction involves the hydrosilylation of an

Formation of stable Si–O–C submonolayers on hydrogen-terminated silicon(111) under low-temperature conditions

• Yit Lung Khung,
• Siti Hawa Ngalim,
• Andrea Scaccabarozzi and
• Dario Narducci

Beilstein J. Nanotechnol. 2015, 6, 19–26, doi:10.3762/bjnano.6.3

• /bjnano.6.3 Abstract In this letter, we report results of a hydrosilylation carried out on bifunctional molecules by using two different approaches, namely through thermal treatment and photochemical treatment through UV irradiation. Previously, our group also demonstrated that in a mixed alkyne/alcohol

• essential towards directing the nature of surface linkage. Keywords: hydrogen abstraction; thermal hydrosilylation; UV-initated hydrosilylation; X-ray photoelectron spectroscopy; Introduction Forming covalently-attached organic submonolayers on silicon remains one of the challenges in surface science. In

• order to gain access to the electronic properties of silicon, it is imperative that the organic layer on the top surface be kept thin enough to avoid a masking of the intrinsic properties of silicon, especially in biosensing application [1]. So far, hydrosilylation is among the most commonly accepted

In situ metalation of free base phthalocyanine covalently bonded to silicon surfaces

• Fabio Lupo,
• Cristina Tudisco,
• Federico Bertani,
• Enrico Dalcanale and
• Guglielmo G. Condorelli

Beilstein J. Nanotechnol. 2014, 5, 2222–2229, doi:10.3762/bjnano.5.231

• 17/A, 43124 Parma, Italy 10.3762/bjnano.5.231 Abstract Free 4-undecenoxyphthalocyanine molecules were covalently bonded to Si(100) and porous silicon through thermic hydrosilylation of the terminal double bonds of the undecenyl chains. The success of the anchoring strategy on both surfaces was

• , covalent grafting on H-terminated silicon through hydrosilylation reaction has the advantage to form robust and highly stable Si–C bonds. For this reason, a device based on silicon-grafted molecules possesses a much greater robustness and reliability compared to van der Waals films or Au-bonded layers

• synthesized to allow for a silicon grafting by functionalization with four undecenyl chains each having a terminal double bond. Phthalocyanine covalent anchoring was performed through thermic hydrosilylation on flat Si(100) and on porous silicon (Si-1-Pc and PSi-1-Pc, respectively). The success of the

New hybrid materials based on poly(ethyleneoxide)-grafted polysilazane by hydrosilylation and their anti-fouling activities

• Thi Dieu Hang Nguyen,
• François-Xavier Perrin and
• Dinh Lam Nguyen

Beilstein J. Nanotechnol. 2013, 4, 671–677, doi:10.3762/bjnano.4.75

• Valette Cedex, France 10.3762/bjnano.4.75 Abstract The objective of this work was to develop new coating materials based on poly(ethyleneoxide) (PEO), which was grafted onto polysilazane (PSZ) by hydrosilylation. Three types of PEO with different molecular weights (350, 750, 2000 g/mol) were studied. The

• kinetics and yields of this reaction have been surveyed by 1H and 13C NMR spectroscopy. The PEO grafting-density onto PSZ by hydrosilylation increases with a reduction of the S–H/allyl ratio and a decrease of the PEO chain-length. The PEO-graft-PSZ (PSZ-PEO) hybrid coatings, which can be used to prevent

• materials; hydrosilylation; poly(ethyleneoxide); polysilazane; Introduction To date, polysilazanes with the general formula –(SiR1R2–NR3)n–, have been mainly used as ceramic precursors Si/C/N for high-temperature applications [1][2][3]. The Clariant Company has developed formulations based on polysilazanes

Variations in the structure and reactivity of thioester functionalized self-assembled monolayers and their use for controlled surface modification

• Inbal Aped,
• Yacov Mazuz and
• Chaim N. Sukenik

Beilstein J. Nanotechnol. 2012, 3, 213–220, doi:10.3762/bjnano.3.24

• preparation Trichlorosilane 1a was prepared by a method similar to that reported for its longer chain analogue [15], and compounds 1b–i, 2, 3 and 4 were all produced by hydrosilylation of a terminal olefin that was obtained by acylation of ω-undecenyl thiol, which had been prepared in three steps from