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27 Jul 1998

Volume 73, Issue 4, pp. 423-552

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Temperature fiber sensor based on semiconductor nanocrystallite-doped phosphate glasses

Yu. O. Barmenkov, A. N. Starodumov, and A. A. Lipovskii

Appl. Phys. Lett. 73, 541 (1998); http://dx.doi.org/10.1063/1.121926 (3 pages) | Cited 1 time

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We propose a temperature fiber sensor based on a CdSe semiconductor nanocrystallite-doped phosphate glass. For 6 nm semiconductor particles the reversible temperature-induced absorption edge shift is demonstrated in the range of 0 °C–150 °C. The prototype of the fiber sensor with sensitivity of 0.12 nm/K and a simple direct intensity detection scheme are reported. © 1998 American Institute of Physics.
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07.20.Dt Thermometers
61.46.-w Structure of nanoscale materials
42.81.Pa Sensors, gyros
07.60.Vg Fiber-optic instruments

Application of a semiconductor tip to capacitance microscopy

Kazuya Goto and Kazuhiro Hane

Appl. Phys. Lett. 73, 544 (1998); http://dx.doi.org/10.1063/1.121927 (3 pages) | Cited 14 times

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A semiconductor tip has been applied to the scanning capacitance microscopy (SCM). Local electrostatic fields are measured through depletion of carriers at the tip end. A Si microcantilever with the sharp end is employed. This SCM technique has been used in a capacitance observation of a dielectric/electrode sample. Potentiometry using this technique is demonstrated in an experiment of charge injection recording on a polymer film. © 1998 American Institute of Physics.
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07.79.-v Scanning probe microscopes and components
68.37.Ef Scanning tunneling microscopy (including chemistry induced with STM)
68.37.Ps Atomic force microscopy (AFM)
68.37.Rt Magnetic force microscopy (MFM)
68.37.Uv Near-field scanning microscopy and spectroscopy

Preparation of size-classified PbS nanoparticles in the gas phase

F. Einar Kruis, Kornelius Nielsch, Heinz Fissan, Bernd Rellinghaus, and Eberhard F. Wassermann

Appl. Phys. Lett. 73, 547 (1998); http://dx.doi.org/10.1063/1.121928 (3 pages) | Cited 23 times

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We report on the synthesis of size-classified PbS nanocrystals by differential mobility analysis of a polydisperse aerosol formed by nucleation and aggregation processes in a furnace reactor. The sublimation temperature employed is below the stoichiometric evaporation temperature, thus enabling direct and simple synthesis by sublimation. The irregularly shaped and amorphous agglomerate particles are then sintered in a second furnace, resulting in the formation of monocrystalline and quasispherical particles with sizes adjustable between 3 and 20 nm and a standard deviation of 1.13. © 1998 American Institute of Physics.
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61.46.-w Structure of nanoscale materials
81.07.-b Nanoscale materials and structures: fabrication and characterization
82.70.Rr Aerosols and foams
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