Development of Radiation Detectors using Semiconductor Perovskite Materials.

使用半导体钙钛矿材料开发辐射探测器。

• 批准号: 2623521
• 金额: --
• 依托单位: University College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2623521
• 关键词: Development; Radiation; Detectors; using; Semiconductor

1) Brief description of the context of the research including potential impact:Radiation detectors used in security and medical contexts are made using materials sensitive to ionisation radiation that produce light or an electrical charge that can be gathered to create meaningful data such as a diagnostic x-ray image. Recent studies of perovskite materials have highlighted their potential for x-ray detection due to their high absorption coefficients, excellent electrical properties and relatively low cost of production among other things.This study will further investigate these properties in order to develop a 3D printable radiation detector using perovskite materials. Such a detector would be beneficial in environments where simple, robust radiation detectors could be used for security purposes, e.g. monitoring ionising radiation at ports or in a tunnel. The future could also see 3D printable detectors applied in fields such as radiotherapy where patient-specific detectors may be desirable.2) Aims and Objectives:The ultimate objective of this project is to lay the foundations for a functioning radiation detector made using perovskite material such as CsPbBr3 that is scalable, easily producible and made with low-cost materials. We aim to develop a 3D printable radiation detector by investigating the practicality of a conductive material that has been loaded with radiosensitive perovskite material.In particular, we are exploring the use of FDM 3D printing with a filament that is both conductive and will produce an electric current in the presence of ionising radiation. We hope to do this by adding perovskite material that has been synthesised in a lab to the carbon-loaded conductive filaments commercially available for 3D printing.We will be working with the University of Surrey to produce perovskite-containing conductive filaments and to extensively characterise their properties. These filaments will later be used for 3D printing methods in order to produce a device capable of radiation detection.Additional work may include Monte Carlo simulations that can help characterise the sensitivity of Perovskite-based radiation detectors.3) Novelty of Research Methodology:This study will include experimental and simulation methodologies. Experimental components will come from the development of perovskite materials and combining these with 3D printable filaments. It will also include experiments for characterising the materials produced.Possible simulation work will involve calculations of dose deposited into the perovskite-loaded material as we assess the material's radiation detecting capabilities.4) Alignment to STFC's strategies and research areas:STFC supports research in physics and materials science and this study will expand our knowledge of perovskite materials and their real-world security and medical applications.5) Any companies or collaborators involved:This PhD studentship has been funded by NuSec (Nuclear Security Science Network). We will be collaborating with the University of Surrey, who will be allowing us access to their laboratory for the purposes of Perovskite synthesis, as well as some of their custom material characterisation setups.

1）对研究的背景的简要说明包括潜在的影响：安全和医疗环境中使用的辐射探测器是使用对电离辐射敏感的材料制成的，该电离辐射敏感会产生光或可以收集的电荷以创建有意义的数据，例如诊断X射线图像。最近对钙钛矿材料的研究突出了它们的X射线检测潜力，这是由于它们的高吸收系数，出色的电气性能和相对较低的生产成本，而其他事物则相对较低。这项研究将进一步研究这些特性，以便使用钙钛矿材料开发3D可打印的辐射探测器。这种检测器将在简单，可靠的辐射探测器用于安全目的的环境中有益，例如监测端口或隧道中的电离辐射。未来还可以看到在诸如放射疗法等领域中应用的3D可打印探测器，其中特定于患者的探测器可能是可取的。2）目标和目标：该项目的最终目标是为使用CSPBBR3（例如CSPBBR3）易于缩放，可缩放，可缩放的材料制造的钙钛矿材料制造的功能性辐射探测器奠定基础。我们旨在通过研究装有放射敏感性钙钛矿材料的导电材料的实用性来开发3D可打印的辐射探测器。尤其是在探索使用FDM 3D打印的使用既具有导电性，又是导电性的，并且在电离辐射的情况下会产生电流。我们希望通过在实验室中添加已合成的钙钛矿材料，以商业上可用于3D打印的碳的导电细丝。我们将与萨里大学合作生产含钙钛矿的导电细丝并广泛地表征其特性。这些细丝以后将用于3D打印方法，以产生能够进行辐射检测的设备。规范性工作可能包括蒙特卡洛模拟，可以帮助可以帮助表征基于钙钛矿的辐射探测器的灵敏度。3）研究方法：这项研究将包括实验和模拟方法。实验组件将来自钙钛矿材料的开发，并将其与3D可打印的丝结合在一起。它还将包括用于表征所产生材料的实验。可靠的模拟工作将涉及在评估材料的辐射检测能力时沉积到钙钛矿的材料中的剂量的计算。4）与STFC的策略和研究领域的一致性：STFC的STFC在物理和材料科学方面的应用程序和材料的材料和他们的知识5），他们的知识和他们的实际材料和他们的知识将为您提供实际的材料和他们的知识。涉及的合作者：该博士学位的学生资助由NUSEC（核安全科学网络）资助。我们将与萨里大学合作，萨里大学将允许我们出于钙钛矿合成的目的访问其实验室，以及他们的一些自定义物质表征设置。