Dr. Vaseem Mohammad's Blog (3)

Green chemistry of glucose-capped ferromagnetic hcp-nickel nanoparticles and their reduced toxicity

Well-designed multifunctional D-(+) Glucose capped nickel nanoparticles (G-Ni NPs) with reduced toxicity was synthesized via green chemistry using D-(+) Glucose and ammonia in water. Here, glucose serves as a reducing and capping agent, resulting in highly stable and well-dispersed G-Ni NPs in the solution. The temperature and field dependent magnetization (M–H) showed a typical magnetic behavior for the G-Ni NPs. In zero field cooled (ZFC) curve, the peak was observed at [similar]15 K,…


Added by Dr. Vaseem Mohammad on June 9, 2013 at 1:36pm — No Comments

Copper oxide quantum dot ink for inkjet-driven digitally controlled high mobility field effect transistors

Copper oxide (CuO) quantum dots (QDs) having a diameter of 5–8 nm were synthesized by a simple solution process. The as-synthesized QDs showed a highly crystalline monoclinic phase of CuO with a bandgap of 1.75 eV. The CuO QDs were further formulated as an ink for inkjet printing of CuO field effect transistors (FETs). The ink-jetting behavior of the as-formulated ink samples showed that the CuO concentration and digitally controlled number of over-prints are important factors for optimizing…


Added by Dr. Vaseem Mohammad on March 1, 2013 at 1:40pm — No Comments

Inkjet Printed Fractal-Connected Electrodes with Silver Nanoparticle Ink

The development of a simple and reliable method for nanoparticles-based ink in an aqueous solution is still a challenge for its inkjet printing application. Herein, we demonstrate the inkjet printing of fractal-aggregated silver (Ag) electrode lines on substrates. Spherical, monodisperse Ag nanoparticles have been synthesized using silver nitrate as a precursor, ethylene glycol as a reducing agent, and polyvinyl pyrrollidone as a capping agent. As-synthesized pure Ag nanoparticles were well…


Added by Dr. Vaseem Mohammad on June 24, 2012 at 12:11pm — No Comments

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