Exploration of the influence of structural properties of tailored AZO nanocrystals in the synthesis and processing of functional thin films

探索定制AZO纳米晶的结构特性对功能薄膜合成和加工的影响

• 批准号: 313569415
• 负责人: Professor Dr. Georg Garnweitner
• 金额: --
• 依托单位: Institut für Partikeltechnik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/313569415?language=en
• 关键词: Exploration; influence; structural; properties; tailored

The crystalline n-type semiconductor aluminum-doped zinc oxide (AZO) has a high application potential in the field of semiconductor technology because of its specific properties, e.g. its low electrical resistance, its good mechanical stability and its high transparency in the visible spectral range. Here, AZO will be seen as an attractive alternative to previously used indium-based oxides in the form of liquid dispersions - as so-called transparent conductive oxide (TCO) - in the application areas of thin-film solar cells, light-emitting diodes or in printable electronics. Through collaboration between the AG's Nirschl and Garnweitner, this joint project aims to gain a comprehensive process understanding of the production of particulate thin films using high-quality AZO nanocrystals with tailored crystal shapes and sizes and a defined Al doping to set specific application properties. Here, a holistic view of the overall process by linking the sub-processes: "Production-->Stabilization-->Coating" is provided.During the first funding period, a close cooperation between the participating research groups provided a comprehensive understanding of the ongoing particle formation and growth processes of AZO nanocrystals during their synthesis via the benzyl amine and benzyl alcohol routes. The AG Garnweitner dealt in detail with the benzyl alcohol route and its influence parameters, while the AG Nirschl developed a growth model for the time-resolved description of particulate processes of spherical AZO crystals on the benzyl amine route by means of SAXS analysis. The analysis focus of both AGs was the X-ray scattering method, which provided important information about time-dependent growth and stabilization processes in the nanometer range (<100 nm). The two applicants were able to generate defined crystal shapes and sizes of AZO by selected process control of the respective synthesis routes, which will significantly influence the particulate layer properties as well as the final application properties of the AZO thin films in the further course of the project.The submitted application for a second funding period has the objective of transferring the findings of both AGs from the first funding period relating to the growth and formation processes of AZO nanocrystals via the two synthesis routes to the subsequent process steps (Stabilization-->Coating) and using X-ray scattering of particles to be linked together so that a consideration of the entire process chain up to the production of AZO-modified thin-film solar cells and organic light-emitting diodes with adjustable application properties will be possible.

晶体N型半导体铝氧化锌（AZO）在半导体技术领域具有很高的应用潜力，因为其特定特性，例如其低电阻，良好的机械稳定性和在可见光谱范围内的高透明度。在这里，在薄膜太阳能电池，发光二极管或可打印的电子学的应用区域中，AZO将被视为以液体分散体形式的先前使用的基于依赖的氧化物的有吸引力的替代品。通过AG的NIRSCHL和Garnweitner之间的合作，该联合项目旨在使用具有量身定制的晶体形状和尺寸的高质量的Azo纳米晶体来获得对颗粒薄膜生产的全面理解，并具有定义的Al掺杂，以设置特定的应用程序。在这里，通过将子过程联系起来：“生产 - >稳定 - >涂层”。在第一个融资期间提供，参与研究小组之间的密切合作提供了对偶然的颗粒形成和在通过苯二氧化苯甲酸酯在通过苯二氧化苯甲酸酯合成过程中的颗粒形成和生长过程的全面理解。 Ag Garnweitner详细介绍了苄醇路线及其影响参数，而Ag Nirschl开发了一种生长模型，用于通过SAXS分析在苯甲醇胺途径上对球形AZO晶体的时间分辨描述。这两个AGS的分析重点是X射线散射方法，该方法提供了有关纳米范围内（<100 nm）中时间依赖性生长和稳定过程的重要信息。两名申请人能够通过对相应合成途径的选定过程控制来生成定义的晶体形状和尺寸，这将显着影响颗粒层的特性以及AZO薄膜的最终应用特性。通过两种合成途径到后续的过程步骤（稳定 - >涂层），并使用颗粒的X射线散射将其连接在一起，从而可以考虑整个过程链以生产具有可调节型的有机光线二极管，从而使纳米晶体通过X射线散射进行。