Abstract Novel hetero structured arrays of CdTe quantum dots capped ZnO nanostructures were successfully prepared through a three tier process. C-axis oriented ZnO nanostructures, namely ZnO nanox (where, x = discs, rods and wires), were prepared on glass and ITO substrates by employing simple, template free and low temperature solvothermal methods. CdTe quantum dots were synthesized subsequently through an organometallic route. ITO/ZnO NanoX/CdTe heterostructured arrays were finally developed, by capping ZnO nanostructured arrays with CdTe quantum dots by using 3-mercaptopropionic acid. The crystalline, structural, morphological and optical features of the individual nanostructures and the heterostructured arrays were investigated by using XRD, HR-TEM, SEM, EDAX, AFM, UV and PL. The role of solvents, solution concentration and temperature on deciding the final morphologies in solvothermal syntheses were studied and the possible growth mechanism of the different nanostructure arrays were proposed. The comparative electron transport studies of the ITO/ZnO NanoX/CdTe heterostructure arrays were carried out. Electrochromic display units having fast electron transport capabilities were developed. The study put forth many futuristic applications of these hetero structured assemblies in wide spectrum of scientific and industrial disciplines, particularly in the areas where a fast electron transport is required.

中文翻译：

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用于高级电子传输应用的 ZnO NanoX（X = 圆盘、棒和线）和 CdTe 量子点的工程异质结构阵列

摘要 通过三层工艺成功制备了 CdTe 量子点包覆的 ZnO 纳米结构的新型异质结构阵列。通过采用简单、无模板和低温溶剂热方法在玻璃和 ITO 基板上制备了 C 轴取向的 ZnO 纳米结构，即 ZnO nanox（其中，x = 圆盘、棒和线）。随后通过有机金属路线合成了 CdTe 量子点。通过使用 3-巯基丙酸用 CdTe 量子点覆盖 ZnO 纳米结构阵列，最终开发了 ITO/ZnO NanoX/CdTe 异质结构阵列。通过使用 XRD、HR-TEM、SEM、EDAX、AFM、UV 和 PL 研究了单个纳米结构和异质结构阵列的晶体、结构、形态和光学特征。溶剂的作用，研究了决定溶剂热合成最终形态的溶液浓度和温度，并提出了不同纳米结构阵列的可能生长机制。进行了 ITO/ZnO NanoX/CdTe 异质结构阵列的比较电子传输研究。开发了具有快速电子传输能力的电致变色显示单元。该研究提出了这些异质结构组件在广泛的科学和工业学科中的许多未来应用，特别是在需要快速电子传输的领域。进行了 ITO/ZnO NanoX/CdTe 异质结构阵列的比较电子传输研究。开发了具有快速电子传输能力的电致变色显示单元。该研究提出了这些异质结构组件在广泛的科学和工业学科中的许多未来应用，特别是在需要快速电子传输的领域。进行了 ITO/ZnO NanoX/CdTe 异质结构阵列的比较电子传输研究。开发了具有快速电子传输能力的电致变色显示单元。该研究提出了这些异质结构组件在广泛的科学和工业学科中的许多未来应用，特别是在需要快速电子传输的领域。