Acquisition of a Nanolithographic Instrument for Investigations in Nanoscience

0079790 Salano这一资助使得能够获得一种新的仪器，该仪器能够产生20 nm的图案化线宽，10 nm扫描电子显微镜（SEM）和20 nm扫描俄歇显微镜（SAM），所有这些都同时提供扫描隧道显微镜（STM/AFM）的原子分辨率。新的仪器将连接到目前的分子束外延（MBE）生长设施，为阿肯色州大学的科学家和工程师提供扩大半导体量子点和量子线的研究机会。初步调查是使用图案化衬底来生产横向有序的自组装量子点，以及如何工程应变来生产量子点。该项目探索了对量子点的均匀性，量子点中的单电子自旋动力学以及单个量子点的光学行为及其之间的相互作用至关重要的基础科学。将有一个调查的可能性，形成光子带结构的量子点阵列。 虽然新仪器旨在提高阿肯色州大学师生的研究能力，但它也将在新的博士学位中发挥重要作用。在NSF IGERT计划下支持的电子-光子材料和器件的学位课程。纳米技术是以纳米材料为研究对象的新兴领域。一纳米，或十亿分之一米，比今天存在的最小的电子设备小一千倍。因此，对纳米尺度的科学理解的进步将在实现未来的电子和光电器件方面发挥重要作用。这个项目使得有可能收购一个新的仪器，当连接到目前的分子束外延生长设施在阿肯色州大学将提供机会，为科学家和工程师探索和推进我们目前的理解纳米半导体量子点和线。它也将在新的博士学位中发挥重要作用。在电子光子材料和设备的学位课程，根据NSF/IGERT计划的支持。我们计划的教育目标是培养出完全准备好推动纳米结构进步的毕业生。我们将通过利用我们的分子束外延设备，再加上新获得的诊断和设备制造工具，作为一种新的教育工具，使这一奖项成为可能，实现这一目标。

0079790SalanoThis grant makes possible the acquisition of a new instrument capable of producing 20nm patterned line widths, 10nm scanning electron microscopy (SEM) and 20nm scanning Auger microscopy (SAM), all while simultaneously providing atomic resolution with a scanning tunneling microscope (STM/AFM). The new instrument will be attached to the present molecular beam epitaxy (MBE) growth facility to provide expanded research opportunities with semiconductor quantum dots and wires for scientists and engineers at the University of Arkansas.Initial investigations are on the use of patterned substrates to produce laterally ordered self-assembled quantum dots and how to engineer strain to produce quantum dots. The project explores the underlying science important to the homogeneity of quantum dots, single electron spin dynamics in a quantum dot, and the optical behavior of a single quantum dot and the interaction between them. There will be an investigation of the possibility of forming photonic band structures from quantum dot arrays. While the new instrument is aimed at enhancing the research capability of faculty and students at the University of Arkansas, it will also play a significant role in a new Ph.D. degree program in electronic-photonic materials and devices supported under the NSF IGERT program. Nanotechnology is a new field, centered on the study of nanometer-sized materials. One nanometer, or one billionth of a meter, is one thousand times smaller than the smallest electronic devices that exist today. As a result, progress in scientific understanding on the nanoscale will play an important role in realizing future electronic and optoelectronic devices. This project makes possible the acquisition of a new instrument which when attached to the present molecular beam epitaxy growth facility at the University of Arkansas will provide the opportunity for scientists and engineers to explore and advance our current understanding of nanosize semiconductor quantum dots and wires. It will also play a significant role in a new Ph.D. degree program in electronic-photonic materials and devices, supported under the NSF/IGERT program. The educational goal of our program is to produce graduates that are fully prepared to drive the advancement of nanostructures. We will accomplish this goal by utilizing our molecular beam epitaxy facility, coupled with the newly acquired diagnostic and device fabrication tools made possible by this award, as a novel educational tool.