David Adner

Fraunhofer Center for Silicon Photovoltaics · Diagnostics and Metrology

A macromolecular halogen‐free flame retardant, poly(N‐[3‐oxopropylmethylphosphinate]ethyleneimine) (PN) has been developed. This material contains both phosphorus and nitrogen. A simple and scalable process for chemical synthesis on commercial scale is described. FTIR, 1H and 31P NMR spectroscopy were utilized for characterization. The compound has...

A halogen‐free flame retardant with a macromolecular structure is presented. Its synthesis proceeds via polymerization of phosphorus‐containing acrylate monomers. The flame retardant was incorporated into poly(ethylene terephthalate) by extrusion. Samples with different concentrations (0.5, 2.5, and 5.0 wt%) as well as a 25 wt% masterbatch were pre...

This chapter is an update of part of a review published by our group elsewhere in Patai's Series; in addition, in this volume, chapters present the recent advances in the deposition of metals and oxides of main-group metals and rare-earth elements, all derived from metal enolates. Metal oxides are essential as common inorganic crude materials, poss...

This chapter is an update of a review published by our group elsewhere in Patai's Series; in addition, in this volume, chapters present the recent advances in the deposition of metals and transition-metal oxides, all derived from metal enolates. Materials featuring group 3 - 12 elements have attracted great technological and scientific attention du...

This chapter describes the use of metal enolates as precursors for the deposition and growth of nano-sized materials of a large variety of metal, mixed metal-metal oxide, and alloy layers and patterns, an area that has rapidly developed during the last couple of decades. As metal enolates, mostly mononuclear main group, transition metal, and rare e...

The synthesis and characterization of silver(I) 2-phenyl-3,6,9-trioxadecanoate (3) is described. Thermal decomposition of 3 at 100–165 °C in a long-chained amine resulted in the formation of monodisperse silver nanoparticles with sizes of about 7–10 nm. By variation of the reaction conditions aspherical silver nanoparticles with hexagonal contours...

Single-walled carbon nanotubes (SWCNTs) were decorated with metal nanoparticles. Using a complementary analysis with spatially resolved micro-Raman spectroscopy, high resolution transmission electron microscopy, electron diffraction, and tip-enhanced Raman spectroscopy, we show that the SWCNTs form bundles in which smaller diameter SWCNTs are the o...

The inkjet printing of copper, silver and gold patterns using nanoparticle- and molecule-based inks will be discussed. Diverse applications including low-cost conductive structures for passive wiring, photovoltaic and near-field communication applications as well as microelectronic components are discussed.

The synthesis and characterisation of the hexanuclear copper(II) carboxylate complex [Cu(O2CCHPhOC2H4OC2H4OCH3)2]6 (1) is described. Single-crystal X-ray structure analysis reveals that the copper(II) ions are arranged in a six-membered ring which adopts a chair-like conformation. The copper(II) ions are bridged by μ2- and μ3-coordinating carboxyla...

Die vorliegende Arbeit beschreibt die Synthese und Charakterisierung ethylenglykolfunktionalisierter Carboxylate der Münzmetalle sowie deren Verwendung als Präkursoren in der Herstellung von Nanopartikeln und leitfähigen Metallschichten. Ein Schwerpunkt der Arbeit liegt auf der Verwendung von Kupfer(II)-carboxylaten zur Herstellung von druckbaren K...

The integration of nanoscale materials into microelectronic devices is challenging and requires revisited and advanced approaches in the respective wafer manufacturing lines. We present a bottom-up approach for the functionalization of single-walled carbon nanotubes (SWCNTs) with metal nanoparticles at the wafer level. The process is directly appli...

The integration of nanoscale materials into microelectronic devices is challenging and requires revisited and advanced approaches in the respective wafer manufacturing lines. We present a bottom-up approach for the functionalization of single-walled carbon nanotubes (SWCNTs) with metal nanoparticles at the wafer level. The process is directly appli...

A scalable on-chip functionalization approach for single-walled carbon nanotubes (SWCNTs) between palladium electrodes in the geometry of a field-effect transistor with preformed metallic nanoparticles is reported. This method is wafer-level compatible and comprises two stage of flow chemistry: a side-wall functionalization of as-deposited SWCNTs w...

Copper(II) ethylene glycol carboxylates were investigated as precursors for inkjet printing of conductive copper patterns. The compounds with the general formula Cu[O2CCRR’(OC2H4)2OCH3]2 (R = R’ = H: 2a; R = H, R’ = Me: 2b; R = R’ = Me: 2c; R = H, R’ = Ph: 2d, R / R’ = O: 2e) show a high solubility in water and many organic solvents. By thermal dec...

By means of Raman spectroscopy we aim at determining the effect of gold nanoparticle decoration on single-walled carbon nanotubes (CNT) in a field effect transistor configuration (CNT-FET). The experiments were performed under green laser excitation (514.7 nm) focused by a 100x objective giving a power below 150 µW on the sample and spatial resolut...

Ethylene glycol-functionalised copper(ii) carboxylates Cu[O2CCR2(OC2H4)nOCH3]2 (n = 0-3; R = H, Me) () have been prepared by the reaction of [Cu2(OAc)4·2H2O] with CH3O(C2H4O)nCR2CO2H (). Upon reduction of with triphenylphosphine, the corresponding tris(triphenylphosphine)copper(i) complexes were obtained, which could be converted to the bis(triphen...

The synthesis of the novel copper(i) precursor [Cu(PPh3)2(O2CCH2OC2H4OC2H4OCH3)] and its application in the straightforward solution synthesis of oxide-free copper nanoparticles by mere thermal decomposition are reported; depending on the precursor concentration particles of sizes of 10 nm or 30 nm are obtained in narrow size distributions.

4H-1,3,2-Benzodioxasilines represent a class of monomers, which are suitable for the recently developed concept of twin polymerization. Relating to the prediction of quantum chemical calculations we are now able to confirm the results for the first step of the reaction: the selective ring opening of 4H-1,3,2-benzodioxasilines. An electrophilic atta...