EAGER: A New Approach to Synthesizing Inorganic-Organic Interfaces

该项目由固态和材料化学计划支持，旨在提供一种新的方法来合成和设计功能和稳定的无机-有机界面，用于广泛的应用，例如选择性，高灵敏度的化学和生物传感器以及高效的光子收集平台。用于将分子覆盖层连接到半导体的传统合成方法对无机载体产生最小的修饰，除了1）除去存在于预连接的任何表面氧化物，和2）如果需要，连接适当的分子连接基团。因此，器件开发的关键要求是产生高密度的覆盖层，其阻止界面的再氧化。该项目的目标是证明使用氧化物作为化学模板的可行性，通过抑制或增强不同的化学反应途径来影响分子附着。这种方法将用于最终创建一个稳定的功能接口。强调确定的关键化学反应，半胱胺和琥珀酸附着到InAs，模型III-V半导体，是这一努力的重点，其目标是开发一个后续的应用为重点的材料/设备的建议，以NSF.NON-TECHNICAL SUMMARYInorganic-organic接口是新一代的电子和光子器件的心脏。该研究项目旨在为能源和传感应用中使用的设备创建更稳定、更高性能的接口。这项工作的核心是设计氧化物界面材料，控制分子附着在器件表面，产生新的性能机制和更高的可靠性。该项目结合了化学，材料科学和工程的关键学科，因此，学生将从跨越这些界限的工作经验中获得相当大的教育效益。该项目涉及四月布朗教授，杜克大学，系。电子与计算机工程系和Maria Losurdo博士，CNR-Bari，意大利。杜克和CNR在这一多学科努力之间的学生交流也为他们的教育提供了显着的增强。

TECHNICAL SUMMARYThis project, supported by the Solid State and Materials Chemistry Program, aims to provide a new means of synthesizing and designing functional and stable inorganic-organic interfaces for exploitation across a wide range of applications, such as selective, high-sensitivity chemical and biological sensors and efficient photon harvesting platforms. The traditional synthesis approach for attaching molecular overlayers to semiconductors creates minimal modifications to the inorganic support except to 1) remove any surface oxide present pre-attachment, and 2) attach appropriate molecular linking groups, if needed. A key requirement for device exploitation is therefore the creation of a highly - dense overlayer that impedes re-oxidation of the interface. The goal of this project is to demonstrate the feasibility of using oxides designed as chemical templates that impact molecular attachment by inhibiting or enhancing different chemical reaction pathways. This approach will be used to ultimately create a stable, functional interface. An emphasis on determining the key chemical reactions governing cysteamine and succinic acid attachment to InAs, a model III-V semiconductor, is the focus of this effort with the goal of developing a follow-on application-focused materials/device proposal to NSF.NON-TECHNICAL SUMMARYInorganic-organic interfaces are the heart of a new generation of electronic and photonic devices. This research project aims to create more stable and higher performance interfaces designed for devices used in energy and sensing applications. The core of the effort is to design oxide interface materials that control the attachment of molecules to device surfaces yielding new performance regimes and higher reliability. The project marries the critical disciplines of chemistry, materials science, and engineering and, as such, students will derive considerable educational benefit from the experience gained working across these boundaries. This project involves collaboration between Prof. April Brown, Duke University, Dept. of Electrical and Computer Engineering, Dept. of Biomedical Engineering, and Dr. Maria Losurdo, CNR-Bari, Italy. The exchange of students between Duke and CNR in this multidiscipline effort also provides significant enhancements to their education.