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首页> 外文期刊>Physica, B. Condensed Matter >Growth and electrical properties of ZnO nanorod arrays prepared by chemical spray pyrolysis
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Growth and electrical properties of ZnO nanorod arrays prepared by chemical spray pyrolysis

机译：化学喷雾热解法制备ZnO纳米棒阵列的生长和电性能

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Chemical spray pyrolysis was applied to grow ZnO nanorod arrays from zinc chloride solutions with pH=2 and 5 on glass/ITO substrate at 480 and 550 degrees C. The obtained structures were characterized by their morphological, electrical and PL properties. According to SEM, deposition of acidic solutions retards coalescence of the growing crystals. The charge carrier density in ZnO nanorods was determined from the C-V characteristics of ZnO/Hg Schottky barrier. Carrier densities similar to 10(15) cm(-3) and slightly above 10(16) cm(-3) were recorded for ZnO deposited at 550 and 480 degrees C, respectively. According to PL studies, intense UV-emission is characteristic of ZnO independent of growth temperature, the concentration of oxygen vacancy related defects is lower in ZnO nanorods deposited at 550 degrees C. Solution pH has no influence on carrier density and PL properties.
机译：应用化学喷雾热解法，在480和550摄氏度的条件下，在玻璃/ ITO基板上从pH = 2和5的氯化锌溶液中生长ZnO纳米棒阵列。通过结构，电学和PL特性对其结构进行了表征。根据SEM，酸性溶液的沉积阻碍了正在生长的晶体的聚结。根据ZnO / Hg肖特基势垒的C-V特性确定ZnO纳米棒中的载流子密度。分别记录了在550和480摄氏度下沉积的ZnO的载流子密度类似于10（15）cm（-3）并略高于10（16）cm（-3）。根据PL研究，强烈的紫外线发射是ZnO的特征，与生长温度无关，在550℃沉积的ZnO纳米棒中，氧空位相关缺陷的浓度较低。溶液的pH值对载流子密度和PL性能没有影响。

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