Direct electron beam writing of silver using a β-diketonate precursor: first insights

• Katja Höflich,
• Krzysztof Maćkosz,
• Chinmai S. Jureddy,
• Aleksei Tsarapkin and
• Ivo Utke

Beilstein J. Nanotechnol. 2024, 15, 1117–1124, doi:10.3762/bjnano.15.90

• without the need for a resist or development step. Here, we employ for the first time a silver β-diketonate precursor for focused electron beam-induced deposition (FEBID). The used compound (hfac)AgPMe3 operates at an evaporation temperature of 70–80 °C and is compatible with commercially available gas

One-step nonhydrolytic sol–gel synthesis of mesoporous TiO₂ phosphonate hybrid materials

• Yanhui Wang,
• P. Hubert Mutin and
• Johan G. Alauzun

Beilstein J. Nanotechnol. 2019, 10, 356–362, doi:10.3762/bjnano.10.35

• case of metals, as M–C bonds are (in most cases) quite unstable, the organic groups can be linked to the metal oxide network via carboxylate or β-diketonate ligands [5][10][11]. Organophosphorus ligands such as phosphonates appear quite promising as they form strong ionocovalent M–O–P bonds with many

Effect of annealing treatments on CeO₂ grown on TiN and Si substrates by atomic layer deposition

• Silvia Vangelista,
• Rossella Piagge,
• Satu Ek and
• Alessio Lamperti

Beilstein J. Nanotechnol. 2018, 9, 890–899, doi:10.3762/bjnano.9.83

• structure [8][16][17][18], which influences the dielectric behavior [18]. ALD guarantees high compatibility with many applications, thanks to the atomic level control of the film thickness with large-area uniformity and conformality also on 3D surfaces. In this study, we use Ce β-diketonate as metal source

Electron interaction with copper(II) carboxylate compounds

• Michal Lacko,
• Peter Papp,
• Iwona B. Szymańska,
• Edward Szłyk and
• Štefan Matejčík

Beilstein J. Nanotechnol. 2018, 9, 384–398, doi:10.3762/bjnano.9.38

• medical applications because copper exhibits antibacterial and antifungal properties [28]. In FEBID experiments, the deposited Cu–C lines and squares, obtained from the fluorinated copper(II) β-diketonate [Cu(hfac)2], had an atomic ratio of approximately Cu/C/O/F = 10:64:25:1. In materials obtained using

• other copper(I) β-diketonate complexes, namely, [Cu(hfac)VTMS], [Cu(hfac)DMB], and [Cu(hfac)MHY] the atomic ratios of Cu/C/O/Si were 20–45:35–70:8–14:2–10, 25–60:15–60:5–25:-, and 13:82:3:-, respectively. As-deposited freestanding rods from FEBID experiments with [Cu(hfac)VTMS] showed small Cu

Atomic layer deposition and properties of ZrO₂/Fe₂O₃ thin films

• Kristjan Kalam,
• Helina Seemen,
• Peeter Ritslaid,
• Mihkel Rähn,
• Aile Tamm,
• Kaupo Kukli,
• Aarne Kasikov,
• Joosep Link,
• Raivo Stern,
• Salvador Dueñas,
• Helena Castán and
• Héctor García

Beilstein J. Nanotechnol. 2018, 9, 119–128, doi:10.3762/bjnano.9.14

• and tetrakis(dimethylamido)zirconium(IV)/water for Fe2O3 and ZrO2, respectively, and Fe2O3 was reduced to Fe3O4 after the growth. In another study [19], ZrO2/Fe thin films were prepared by ALD from β-diketonate precursors and ozone. After annealing at 600 °C in N2 flux for 60 s, the films exhibited

Single-molecule magnet behavior in 2,2’-bipyrimidine-bridged dilanthanide complexes

• Wen Yu,
• Frank Schramm,
• Eufemio Moreno Pineda,
• Yanhua Lan,
• Olaf Fuhr,
• Jinjie Chen,
• Hironari Isshiki,
• Wolfgang Wernsdorfer,
• Wulf Wulfhekel and
• Mario Ruben

Beilstein J. Nanotechnol. 2016, 7, 126–137, doi:10.3762/bjnano.7.15

• -dinuclear complexes of tris-β-diketonate adducts of Gd(III), Tb(III) [30], Dy(III), Ho(III) and Er(III) with a bpm bridging ligand. We employed 2,2’,6,6’-tetramethyl-2,4-heptanedionate (tmhd) ligands as peripheric ligands, providing overall charge-neutral compounds. The magnetic behavior of the compounds

Sub-monolayer film growth of a volatile lanthanide complex on metallic surfaces

• Hironari Isshiki,
• Jinjie Chen,
• Kevin Edelmann and
• Wulf Wulfhekel

Beilstein J. Nanotechnol. 2015, 6, 2412–2416, doi:10.3762/bjnano.6.248

• contamination of the surface. This new rare-earth-based class of molecules broadens the choice of molecular magnets to study with scanning tunneling microscopy. Keywords: β-diketonate; molecular films; scanning tunneling microscopy; terbium; volatile lanthanide complex; Introduction Several carefully designed

UHV deposition and characterization of a mononuclear iron(III) β-diketonate complex on Au(111)

• Irene Cimatti,
• Silviya Ninova,
• Valeria Lanzilotto,
• Luigi Malavolti,
• Luca Rigamonti,
• Brunetto Cortigiani,
• Matteo Mannini,
• Elena Magnano,
• Federica Bondino,
• Federico Totti,
• Andrea Cornia and
• Roberta Sessoli

Beilstein J. Nanotechnol. 2014, 5, 2139–2148, doi:10.3762/bjnano.5.223

• , Italy 10.3762/bjnano.5.223 Abstract The adsorption of the sterically hindered β-diketonate complex Fe(dpm)3, where Hdpm = dipivaloylmethane, on Au(111) was investigated by ultraviolet photoelectron spectroscopy (UPS) and scanning tunnelling microscopy (STM). The high volatility of the molecule limited

• the growth of the film to a few monolayers. While UPS evidenced the presence of the β-diketonate ligands on the surface, the integrity of the molecule on the surface could not be assessed. The low temperature STM images were more informative and at submonolayer coverage they showed the presence of

• ) in octahedral environment were observed. Keywords: Au(111); β-diketonate complexes; DFT; STM; thin films; UPS; XMCD; XPS; Introduction A renewed interest in mononuclear metal complexes has recently arisen due to the observation that systems of this class can behave as single molecule magnets (SMMs