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Single-crystal Na0.44MnO2 nanoribbons were synthesized by using a molten-salt method. The gas-sensing characteristics of the nanoribbons were investigated in ethanol, acetone and isopropanol gases. The results indicate that the Na0.44MnO2 nanoribbons based sensor is obviously sensitive to these gases at 150–300°C, and the highest sensitivity to ethanol. The maximum ethanol gas response of the nanoribbons...
We report on the crystallographic tilting of AlN/GaN layers grown on Si (111) substrates with different miscut angles toward [110] direction. The inclination angle of the Si (111), AlN (002) and GaN (002) planes to the sample surface was measured by high resolution X-ray diffraction. We found that the tilt angles of the AlN and GaN layers with respect to the Si (111) plane are significantly larger...
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