The role of ligands in coinage-metal nanoparticles for electronics

• Ioannis Kanelidis and
• Tobias Kraus

Beilstein J. Nanotechnol. 2017, 8, 2625–2639, doi:10.3762/bjnano.8.263

• pyrrole-, bithiophene-, or terthiophene-thiols were reacted with gold nanoparticles and oxidatively coupled gold particles in solution or in the solid state. Electron transport in the films was reported to reach conductivities in the range of 10−7 to 10−2 S/cm [121]. 3.3 Sintering Instead of linking

• reached a conductivity of 2000 S/cm [132]. Conventional drop casting of one size of gold nanoparticles functionalized by a π-conjugated terthiophene resulted in films of hexagonally packed particles. The terthiophene ligands aligned around the assembled particles, enabled face-to-face π–π interactions

• between the ligands, and resulted in a film conductivity of 4.8 × 10−8 S/cm. The low conductivity was attributed to the insulating alkyl chain between the terthiophene unit and the gold core [133]. An example of a polymer assisting the formation of assembled nanoparticles is given by Liang and co-workers

Case studies on the formation of chalcogenide self-assembled monolayers on surfaces and dissociative processes

• Yongfeng Tong,
• Tingming Jiang,
• Azzedine Bendounan,
• Makri Nimbegondi Kotresh Harish,
• Angelo Giglia,
• Stefan Kubsky,
• Fausto Sirotti,
• Luca Pasquali,
• Srinivasan Sampath and
• Vladimir A. Esaulov

Beilstein J. Nanotechnol. 2016, 7, 263–277, doi:10.3762/bjnano.7.24

• also revealed complex S 2p spectra (Figure 6a) with components corresponding to molecular adsorption and the appearance of thiolate and possibly atomic sulfur. Thus, these components were observed with various degrees of intensity for EDOT, bi-EDOT, 3’,4’-ethylenedioxy-2,2’:5’,2”-terthiophene (TET

Optimization of solution-processed oligothiophene:fullerene based organic solar cells by using solvent additives

• Gisela L. Schulz,
• Marta Urdanpilleta,
• Roland Fitzner,
• Eduard Brier,
• Elena Mena-Osteritz,
• Egon Reinold and
• Peter Bäuerle

Beilstein J. Nanotechnol. 2013, 4, 680–689, doi:10.3762/bjnano.4.77

• butyl-substituted terthiophene 5 in a two-fold Pd(0)-catalyzed Stille-type coupling reaction to obtain DCV5T-Bu4 on the gram scale in 46% yield. After purification by column chromatography, the high purity and thermal stability of oligomer DCV5T-Bu4 were confirmed by analytical high performance liquid

Surface functionalization of aluminosilicate nanotubes with organic molecules

• Wei Ma,
• Weng On Yah,
• Hideyuki Otsuka and
• Atsushi Takahara

Beilstein J. Nanotechnol. 2012, 3, 82–100, doi:10.3762/bjnano.3.10

• can still be observed. This result is consistent with the explanation for the SFM observation. Terthiophene/imogolite hybrid Grafting of functionalized molecules (porphyrins, phtalocyanines, viologens, rhodamine B, etc.) onto metal-oxide surfaces of SiO2, TiO2, ITO, WO3, and ZrO2 can induce the

• component adsorption, abundance of empty surface sites for covalent binding of acidic anchoring groups, and high stability under ambient conditions. A more promising approach to render aluminosilicate nanotubes semiconducting is by functionalization with conjugated molecules, such as terthiophene with alkyl

• , and a broad range of fluorescence frequencies in the entire UV–visible and the near-IR spectrum, through molecular engineering [57][58][59]. For preparation of terthiophene/imogolite hybrid materials, imogolite solution was added dropwise to a THF solution of 2-(5’’-hexyl-2,2’:5’,2’’-terthiophen-5-yl

Terthiophene on Au(111): A scanning tunneling microscopy and spectroscopy study

• Berndt Koslowski,
• Anna Tschetschetkin,
• Norbert Maurer,
• Elena Mena-Osteritz,
• Peter Bäuerle and
• Paul Ziemann

Beilstein J. Nanotechnol. 2011, 2, 561–568, doi:10.3762/bjnano.2.60

• Abstract Terthiophene (3T) molecules adsorbed on herringbone (HB) reconstructed Au(111) surfaces in the low coverage regime were investigated by means of low-temperature scanning tunneling microscopy (STM) and spectroscopy (STS) under ultra-high vacuum conditions. The 3T molecules adsorb preferentially in

• indicating an adsorption-induced dimensionality transition of the involved tunneling processes. Keywords: Au(111); electronic density of states; STM; STS; terthiophene; Introduction Because of their expedient properties and their diversity, oligo- and polythiophenes are among the most investigated organic

• the liquid environment of an electrochemical cell [9][10][11]. In the present contribution we analyze terthiophene (2,2':5',2"-terthiophene), 3T, as a representative of linear oligothiophenes being adsorbed on a Au(111) electrode within the low coverage regime (<1 monolayer (ML)), allowing us to study