Вольт-амперная характеристика термоионной эмиссии Na с поверхности Na-=SUB=-x-=/SUB=-Au

A sub-1V 78-nA bandgap reference with curvature compensation

This paper presents a low power bandgap reference (BGR) with 573 mV average output voltage and 0.95-V minimum supply voltage. Here, the resistor ratio of two types of resistors that have opposite temperature coefficient (TC) realizes a second-order curvature compensation. In addition, to reduce the supply voltage we adopt a voltage divider, and we also employ proportional to absolute temperatur...

In Situ Observation of Dehydration-Induced Phase Transformation from Na₂Nb₂O₆H₂O to NaNbO₃

We have monitored the phase transformation from a Sandia octahedral molecular sieve Na2Nb2O6−H2O to a piezoelectric NaNbO3 nanowire through in situ X-ray diffraction (XRD) and transmission electron microscopy (TEM) measurements at high temperatures. After dehydration at 288 °C, the Na2Nb2O6−H2O becomes significantly destabilized and transforms into NaNbO3 with the increase of time. The phase tr...

Novel Magnetic and Optical Properties of Sn_1−xZn_xO₂ Nanoparticles

Structure Symmetry Determination and Magnetic Evolution in Sr₂Ir_{1−<em>x</em>}Rh_<em>x</em>O₄

A non-vacuum process for preparing nanocrystalline CuIn_1−xGa_xSe₂ materials involving an open-air solvothermal reaction

A non-vacuum, two-step process has been used to prepare a series of nanocrystalline CuIn1−xGaxSe2 (x = 0, 0.25, 0.5, 0.75, 1) materials. An open-air solvothermal preparation in triethylenetetramine solvent was followed by annealing at 500 °C in a nitrogen atmosphere for 20 min. All materials have mixed clustered plate, spherical particle, and nanorod morphologies with the smallest particle diam...