Materials nanoarchitectonics at two-dimensional liquid interfaces

• Katsuhiko Ariga,
• Michio Matsumoto,
• Taizo Mori and
• Lok Kumar Shrestha

Beilstein J. Nanotechnol. 2019, 10, 1559–1587, doi:10.3762/bjnano.10.153

• , liquid interfaces often provide important anisotropic fabrication media to synthesize novel types of low-dimensional carbon materials. Recently, Mori et al. successfully demonstrated the fabrication of two-dimensional nanocarbon films from a designed molecular unit, the carbon nanoring molecule (9,9

• ′,10,10′-tetrabutoxycyclo[6]paraphenylene[2]-3,6-phenanthrenylene), by using newly developed vortex LB method at a liquid interface with dynamic flow (Figure 14) [234]. For this bottom-up fabrication, the chloroform solution of the carbon nanoring was dripped at the air–water interface under rotating

• vortex flow. Appropriate flow rates yielded two-dimensional films of the carbon nanoring molecule with uniform thickness of a few nanometres. The monolayer films were transferred from the water surface to a solid substrate by hand. Further heat treatment under inert gas atmosphere led to the formation of

Metal–dielectric hybrid nanoantennas for efficient frequency conversion at the anapole mode

• Valerio F. Gili,
• Lavinia Ghirardini,
• Davide Rocco,
• Giuseppe Marino,
• Ivan Favero,
• Iännis Roland,
• Giovanni Pellegrini,
• Lamberto Duò,
• Marco Finazzi,
• Luca Carletti,
• Andrea Locatelli,
• Aristide Lemaître,
• Dragomir Neshev,
• Costantino De Angelis,
• Giuseppe Leo and
• Michele Celebrano

Beilstein J. Nanotechnol. 2018, 9, 2306–2314, doi:10.3762/bjnano.9.215

• Figure 3d) and in a much higher SHG efficiency for the former platform compared to the nanodisk operating at the anapole condition. In this frame, opening a coupling channel for the light via the gold nanoring helps improving the field enhancement F inside the nanodisk, but it also weakens the anapole

Magnetic characterization of cobalt nanowires and square nanorings fabricated by focused electron beam induced deposition

• Federico Venturi,
• Gian Carlo Gazzadi,
• Amir H. Tavabi,
• Alberto Rota,
• Rafal E. Dunin-Borkowski and
• Stefano Frabboni

Beilstein J. Nanotechnol. 2018, 9, 1040–1049, doi:10.3762/bjnano.9.97

• square nanorings Two square nanorings, each composed of four NWs, were deposited on amorphous C and studied using L-TEM. The first nanoring was deposited at 5 keV. Each NW was deposited by scanning the beam for 50 s on a 1 × 0.05 μm2 area, resulting in sides that are 1 μm long and ca. 100 nm wide. When

• , at the bottom left, which is aligned in the opposite way, in response to the direction of the applied magnetic field. In the following, the ability of L-TEM to provide a direct visualization of the switching process of the horseshoe state in a square nanoring is demonstrated. Just as for nanowires

• , the tilt angle was varied and the square nanoring imaged with various Beff values applied during the process. When Beff is reversed and then gradually increased up to a value of −0.6 × 10−2 T (Figure 3b), the two domains that are perpendicular to the direction of the applied field are not affected. In

A terahertz-vibration to terahertz-radiation converter based on gold nanoobjects: a feasibility study

• Kamil Moldosanov and
• Andrei Postnikov

Beilstein J. Nanotechnol. 2016, 7, 983–989, doi:10.3762/bjnano.7.90

• ; nanobar; nanoring; terahertz emitter; Introduction The terahertz (THz) range of the electromagnetic waves, the range between microwaves and infrared (IR), is often discussed in reference to the “terahertz gap”, where “electronics meets optics”. The corresponding radiation, exhibiting properties common to

Fabrication of high-resolution nanostructures of complex geometry by the single-spot nanolithography method

• Alexander Samardak,
• Margarita Anisimova,
• Aleksei Samardak and
• Alexey Ognev

Beilstein J. Nanotechnol. 2015, 6, 976–986, doi:10.3762/bjnano.6.101

• dose greater than 0.1 pC per dot. A single-spot enables the fabrication of a nanoring, while a chain of spots placed at distance of 5–30 nm from each other allows the production of a polymer pattern of complex geometry of sub-10 nm resolution. We demonstrate that in addition to the naturally oxidized

Nano-rings with a handle – Synthesis of substituted cycloparaphenylenes

• Anne-Florence Tran-Van and
• Hermann A. Wegner

Beilstein J. Nanotechnol. 2014, 5, 1320–1333, doi:10.3762/bjnano.5.145

• applied the cyclohexadiene strategy that was initially presented by Jasti et al. with a modified naphthalene derivative to synthesize a cyclonaphthylene nanoring (CN) (Scheme 6) [54]. The building block was synthesized by addition of mono-lithiated 1,4-dibromonaphthalene (26) on 1,4-naphthoquinone (27

• al. Synthesis of acene inserted CPP by Itami et al. Synthesis of a pyrene-inserted CPP by Itami et al. Synthesis of a [9]cyclonaphthylene nanoring by Itami et al. Synthesis of a naphthylene-containing CPP by Swager and Batson. Synthesis of functionalized cycloparaphenylenes by Wang et al. Synthesis