Journal of Nanoscience, NanoEngineering & Applications
Volume 4, Issue 2 (2014)
Published
Table of contents
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Series Resistor Method for Higher Signal-to-Noise Ratio and High Sensitivity in Superconducting Nanowire Single-Photon Detectors
Abstract: A series resistor method has been presented for higher signal-to-noise and high sensitivity in superconducting nanowire single-photon detectors (SNSPD). This method has given a very high useful data yields exceeding 50% while still maintaining pure single-photon operation and wide dynamic range. The SNSPD signal is roughly proportional to the nanowire width, so narrow nanowire have poor signal-to-noise ratio (SNR) at widths from 4–30 nm and fabrication at these length scales …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 4, Issue 2, 2014 · pp. 1–4 Read article
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Simple Hydrothermal Synthesis and Morphological Study of Magnetic Nanoparticles
Abstract: Magnetite (Fe3O4) nanoparticles were synthesized using FeCl3•6H2O or FeCl2•4H2O with 5 or 8 mmol concentration and 3 or 5 h incubation time with the constant pH (7.5) by simple hydrothermal decomposition and then transferred them into maghemite (γ-Fe2O3) and hematite (α-Fe2O3). Precisely, the objectives of the study were to evaluate the influences of salt type, its concentration and incubation time on the morphology of the as-synthesized magnetic nanoparticles. Synthesized nanoparticles …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 4, Issue 2, 2014 · pp. 14–22 Read article
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Synthesis by Sol–Gel Method and Characterization of CaAlO: Mn, Dy Nanoparticles
Abstract: Dy and Mn doped Calcium Aluminate nanoparticles were synthesized by using Sol-gel method. Heat treated material was characterized by X-ray diffraction(XRD), optical study of photoluminescence (PL) emission spectra, morphological study of scanning electron microscopy (SEM) combined with X-ray analysis. The Dy and Mn doped phosphor exhibits emission at the excitation of the material with 380 nm wavelength generates a strong emission at 480 nm. Besides this, subsidiary maxima at 417, …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 4, Issue 2, 2014 · pp. 23–27 Read article
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Storage Modulus and Glass Transition Temperature of MWNT/PMMA Polymer Nanocomposite Films with Different wt% of MWNT
Abstract: This paper presents the study of behavior of storage modulus and glass transition temperature of MWNT/PMMA polymer nanocomposites prepared by solution casting method, with different (0, 0.1, 0.2, 0.3, 0.5, 1, 5, 10) wt% of MWNT in the PMMA matrix. Dynamic mechanical analysis has been done in tension mode. Storage modulus increases with CNT loading in matrix except for 0.1, 0.2 wt% CNT samples, for 0.5 wt% sample onwards to …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 4, Issue 2, 2014 · pp. 28–33 Read article
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Photo-Assisted Room Temperature Synthesis of Brightly Fluoresce ZnSe Quantum Dots in Aqueous Medium
Abstract: The ZnSe quantum dots (QDs) have gained considerable research interest as an alternative to heavy-metal-based QDs and are non-toxic, have strong emission in UV-blue region, and with wider band gap are suitable for doping various ions to tune their optical and electronics properties. For biological applications, aqueous stability of QDs is an indispensable prerequisite. Mercapto-carboxylic acids such as mercaptopropionic acids (MPA), thioglycolic acids (TGA), etc., are commonly used for providing …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 4, Issue 2, 2014 · pp. 5–13 Read article