NER: Electrodeposition of Nanostructured Compound Semiconductors

本纳米尺度探索性研究（NER）提案是响应“纳米尺度科学与工程”（NSF 01-157）的征求而提交的。该项目的目标是利用电化学原子层外延（EC-ALE）形成超晶格纳米结构。EC-ALE基于表面有限的电化学反应，是MBE和VPE等传统技术的补充，由于该过程在室温下进行，因此可以在诸如管之类的奇怪形状表面上沉积，并且可以强烈减少扩散。具体的研究目标是：1。化合物半导体超晶格的生长。2. 纳米阵列电极上化合物的电沉积。3. 超晶格纳米晶体的生长。4. δ掺杂的研究。本项目的影响和意义可以总结如下。有一个强烈的需求增加封装密度的电子结构，结合趋势的电化学工艺生产在芯片工业。私营部门和政府部门都在积极寻求改进的光电材料，如光伏电池和红外探测器。在科学方面，对纳米结构材料的兴趣持续上升，基于可用于设计新材料的大参数空间。EC-ALE为纳米级结构的沉积提供了独特的方法，并获得了不易由MBE或VPE生产的材料。拟议的项目依赖于纳米结构半导体的沉积和表征。采用跨学科的方法，结合化学和物理的各个方面。该项目涉及材料科学中具有高技术相关性的主题领域的基础探索性研究问题。该计划的一个重要特点是通过培养学生在一个基础和技术上重要的领域的研究和教育的整合。该项目由MPS/DMR和MPS/CHE部门共同支持

This Nanoscale Exploratory Research (NER) proposal was submitted in response to the solicitation "Nanoscale Science and Engineering" (NSF 01-157). The goal of the project is to form superlattice nanostructures using electrochemical atomic layer epitaxy (EC-ALE). EC-ALE is based on surface limited electrochemical reactions, and is complementary to traditional techniques such as MBE and VPE, with the possibility of deposition on odd-shaped surfaces such as tubes, and strongly reduced diffusion, since the process takes place at room temperature. Specific research objectives are: 1. Growth of compound semiconductor superlattices. 2. Electrodeposition of compounds on nano array electrodes. 3. Growth of superlattice nanocrystals. 4. Studies of delta doping. The impact and significance of this project may be summarized as follows. There is a strong demand for increased package density of electronic structures, combined with a trend to electrochemical processes for production in the chip industry. The search for improved optoelectronic materials, like photovoltaic cells and infrared detectors is actively pursued in both the private and government sector. On the scientific front, the interest in nanostructured materials continues to rise, based on the large parameter-space available to engineer novel materials. EC-ALE offers unique approaches to the deposition of nanoscale structures, and access to materials that cannot readily be produced by MBE or VPE. The proposed project relies on both the deposition and characterization of nanostructured semiconductors. A cross-disciplinary approach is taken, combining aspects of Chemistry and Physics. %%% The project addresses basic exploratory research issues in a topical area of materials science with high technological relevance. An important feature of the program is the integration of research and education through the training of students in a fundamentally and technologically significant area. The project is co-supported by the MPS/DMR and MPS/CHE Divisions.***