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Effects Of Substrate On Morphologies And Photoluminescence Properties Of Zno Nanorods

机译：基质对Zno纳米棒的形貌和光致发光性能的影响

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摘要

Zinc oxide (ZnO) nanorods were grown on three kinds of substrates (Si, glass and ITO-conducting glass) by the chemical solution deposition method (CBD) in an aqueous solution that contained zinc nitrate hexahydrate (Zn(NO_3)_2·6H_2O) and methenamine (C_6H_(12)N_4). The nature of the substrate was found to have effect on the crystal structure, morphologies and photoluminescence properties of the resultant ZnO nanorods. From the X-ray measurement results, it can be seen that the growth orientation of the resultant ZnO nanorods deposited on various substrates were (0 0 2), but the highest intensity of (0 0 2) diffraction peak appeared in the samples deposited on glass and ITO-conducting glass compared to that of Si substrate. SEM results showed the nanorods grown on the bare glass had the most uniform size and the highest coverage density. Photoluminescence measurements were also carried out, the result showed that the ZnO nanorods grown on three kinds of substrates had different photoluminescence behaviors, and the one grown on the Si substrate had the best performance. And the small shift in the UV emission was caused by the compressive stress from the Raman measurement results.
机译：通过化学溶液沉积法（CBD）在含有六水合硝酸锌（Zn（NO_3）_2·6H_2O）的水溶液中，在三种衬底（硅，玻璃和ITO导电玻璃）上生长氧化锌（ZnO）纳米棒。和二甲胺（C_6H_（12）N_4）。发现基底的性质对所得ZnO纳米棒的晶体结构，形态和光致发光性质有影响。从X射线测量结果可以看出，沉积在各种基底上的ZnO纳米棒的生长方向为（0 0 2），但在沉积在其上的样品中出现了最高强度的（0 0 2）衍射峰。与Si基板相比，玻璃和ITO导电玻璃。 SEM结果表明，在裸露玻璃上生长的纳米棒具有最均匀的尺寸和最高的覆盖密度。还进行了光致发光测试，结果表明，在三种衬底上生长的ZnO纳米棒具有不同的光致发光行为，而在硅衬底上生长的ZnO纳米棒具有最佳的性能。 UV发射的微小变化是由拉曼测量结果产生的压缩应力引起的。

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