Quantum Dot Architecture Nanodynamics

量子点结构纳米动力学

• 批准号: EP/N022661/1
• 负责人: Juan Pereiro Viterbo
• 金额: $ 55.08万
• 依托单位: CARDIFF UNIVERSITY
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FN022661%2F1
• 关键词: Quantum; Dot; Architecture; Nanodynamics

Site controlled semiconductor quantum dots (QDs) are the subject of world-wide interest because of their potential use in quantum information technologies and nanoscale optoelectronics. The goal is to create advanced QD architectures by controlling the precise position of single dots or molecules during epitaxial growth. However, a significant limitation in the realisation of site controlled III-V quantum structures is our inability to observe how they form in real-time and hence understand how to precisely tailor their characteristics. This project will utilise a unique electron microscope in Cardiff to obtain the first real-time movies of how QDs actually form in advanced architectures. This will provide unprecedented feedback to the National Centre for III-V Technologies and allow us to fabricate QDs with the best site control and optical properties ever achieved. These optimal structures will be tested optically with a view to commercial exploitation with Hitachi Europe Ltd for the large scale integration of single-photon (SP) sources into quantum photonic circuits and networks.

位控半导体量子点在量子信息技术和纳米光电子学中具有潜在的应用前景，因此受到了广泛的关注。目标是通过在外延生长期间控制单个点或分子的精确位置来创建先进的QD架构。然而，实现位点控制的III-V量子结构的一个重要限制是我们无法实时观察它们是如何形成的，从而了解如何精确地定制它们的特性。该项目将利用卡迪夫独特的电子显微镜获得量子点如何在先进架构中实际形成的第一个实时电影。这将为国家III-V技术中心提供前所未有的反馈，并使我们能够制造具有有史以来最佳位点控制和光学特性的量子点。这些最佳结构将进行光学测试，以期与日立欧洲有限公司进行商业开发，将单光子（SP）源大规模集成到量子光子电路和网络中。

项目成果

Unified method for measuring entropy differences between coexisting surface phases using low energy electron microscopy

使用低能电子显微镜测量共存表面相之间熵差的统一方法

• DOI: 10.1103/physrevresearch.4.033163
• 发表时间: 2022
• 期刊: Physical Review Research
• 影响因子: 4.2
• 作者: Ivanov M

On the sensitivity of convergent beam low energy electron diffraction patterns to small atomic displacements

会聚束低能电子衍射图样对小原子位移的敏感性

• DOI: 10.1016/j.apsusc.2019.05.274
• 发表时间: 2019
• 期刊: Applied Surface Science
• 影响因子: 6.7
• 作者: Constantinou P

SIMULATION OF MIRROR ELECTRON MICROSCOPY CAUSTIC IMAGES IN THREE-DIMENSIONS

镜面电子显微镜三维焦散图像的模拟

• DOI: 10.1142/s0218625x19500136
• 发表时间: 2018
• 期刊: Surface Review and Letters
• 影响因子: 1.1
• 作者: KENNEDY S

Droplet Epitaxy Image Contrast in Mirror Electron Microscopy.

镜像电子显微镜中的液滴外延图像对比。

• DOI: 10.1186/s11671-017-1837-y
• 发表时间: 2017-12
• 期刊: Nanoscale research letters
• 作者: Kennedy SM;Zheng CX;Jesson DE
• 通讯作者: Jesson DE

Surface Phase Metastability during Langmuir Evaporation.

朗缪尔蒸发过程中的表面相亚稳定性。

• DOI: 10.1103/physrevlett.123.186102
• 发表时间: 2019
• 期刊: Physical review letters
• 影响因子: 8.6
• 作者: Hannikainen K