Combinatorial CVD

组合CVD

基本信息

批准号：
EP/H00064X/1
负责人：
Ivan Parkin
金额：
$ 103.78万
依托单位：
University College London
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2009
资助国家：
英国
起止时间：
2009 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FH00064X%2F1
关键词：
Combinatorial CVD

项目摘要

This is an application for a Platform for baseline funding to support the joint Carmalt/Parkin research group. Parkin and Carmalt have collaborated extensively in the area of Chemical Vapour Deposition (CVD). Carmalt has focussed on the synthesis of molecular precursors for use in CVD, whereas Parkin has concentrated on the CVD growth and functional characterisation of thin films from these and other precursors. In the course of this research they have, unusually for CVD, discovered a wide number of new phases especially metal nitride, oxide, sulfide and selenide materials that had proven due to kinetic reasons and precursor design, unobtainable by conventional solid-state synthesis. They have also determined how to control preferred growth and orientation of crystallites grown by CVD. This has enabled them to grow materials with improved functional properties for a variety of applications from gas-sensors, through ultraphobic, superhydrophilic surfaces to thermochromic and self-cleaning films. The pinnacle of this work, especially for new phase determination has been their use of combinatorial CVD for the synthesis of new materials. Combinatorial CVD is currently the major focus of the Carmalt and Parkin joint group and is a significant component of all of their current EPSRC funding. This methodology has enabled them, for example, to make a range of new mixed metal oxide photocatalysts and a new series of Ti3O4-xN1 phases (see J. Am. Chem. Soc., 2006, 128, 12147-55; J. Am. Chem. Soc., 2007, 17, 4652-60). The combinatorial CVD process has extraordinary potential. The applicants have shown how, for example, in a single CVD experiment up to 800 different phase compositions can be made. They have also shown how this large phase range can be explored in a robotic fashion using programmed movable X-Y stage Raman, electrical conductivity and X-ray measurements such that the whole phase space can be mapped in overnight experiments. This technique offers the potential to rapidly search for new phases and to explore a systematic range of compositions to determine which combination of materials leads to the best functional properties. They are then able to adjust the synthesis conditions and make the desired phase. The work is primarily focussed at making thin films, however they have shown through a delamination methodology that they can make gram quantities of materials. They wish to take advantage of this unique technique and develop its potential in three main areas;* The preparation of new visible light photocatalysts for water splitting and antimicrobial applications- such materials have potential to revolutionalise energy generation and reduce hospital acquired infections.* The preparation of thin films for use as ultra-sensitive gas sensors- we plan to incorporate such materials to develop a single breath sensor, this could be used routinely in a surgery by a doctor for disease diagnosis (over 30 diseases can be diagnosed from exhaled breath- however current analysis requires shipment to a lab and takes over a week).* The synthesis of new precursors for use as photovoltaic thin films and transparent conducting films. For example; develop low pressure combinatorial CVD to form improved semiconductor materials including indium gallium selenides and related materials, the aim of this subproject is to achieve low processing cost, high throughput and high quality film deposition of these important ternary and higher order materials using combinatorial LPCVD. Thin films of graded composition will be grown by using low pressure chemical vapour deposition with two/three separate precursor gas streams, e.g. one for indium selenide, one for gallium selenide and one for copper selenide. Diffusion of the gas streams allows graded compositions (e.g. CuGaxIn1-xSe2) across the whole plate.

这是用于基线资金平台的应用程序，以支持Carmalt/Parkin Research Group联合。 Parkin和Carmalt在化学蒸气沉积（CVD）领域进行了广泛的合作。 Carmalt专注于用于CVD的分子前体的合成，而Parkin集中在这些和其他前体的薄膜的CVD生长和功能表征上。在这项研究的过程中，他们对CVD的目的是不寻常的，发现了许多新阶段，尤其是金属氮化金属，氧化物，硫化物和硒化材料，这些材料由于动力学原因和前体设计，无法通过常规固态合成而得到证明。他们还确定了如何控制CVD生长的晶体的首选生长和方向。这使他们能够生长具有改进功能特性的材料，用于从气传感器，通过超恐惧，超养分表面到热颜色和自我清洁膜的各种应用。这项工作的巅峰之作，特别是用于新阶段的确定是它们使用组合CVD来合成新材料。 Combinatorial CVD目前是Carmalt和Parkin联合组的主要重点，并且是其当前所有EPSRC资金的重要组成部分。例如，这种方法使它们能够制作一系列新的混合金属氧化物光催化剂和一系列新系列的Ti3O4-XN1阶段（参见J.Am。Chem。Soc。，2006，128，12147-55; J.Am。J.Am。Chem。Chem。Soc。，2007，1007，17，17，4652-60）。组合CVD过程具有非凡的潜力。例如，申请人显示了如何在单个CVD实验中如何进行多达800个不同的相组成。他们还展示了如何使用编程的可移动X-y级拉曼，电导率和X射线测量值以机器人方式探索大型相位范围，从而可以在一夜之间的实验中映射整个相位空间。该技术提供了快速搜索新阶段的潜力，并探索系统的组成范围，以确定哪种材料组合会带来最佳的功能性能。然后，他们能够调整合成条件并进行所需的阶段。这项工作主要集中在制作薄膜上，但是它们通过分层方法表明它们可以制造大量的材料。他们希望利用这一独特的技术并在三个主要领域发展其潜力；*准备新的可见光光催化剂进行水分裂和抗菌剂的应用 - 这种材料有可能使能源产生革新并减少医院获取感染的潜力。*用这种材料融合了这种材料的薄膜来制定薄膜，以使我们的这种材料融合了这种材料 - 可以将这种材料纳入这种呼吸，从而可以将这种材料纳入这种呼吸，从而可以使用这种呼吸，从而可以使用这种呼吸，从而可以使用这种呼吸，从而可以使用这种呼吸，从而可以使用这种效果。诊断（可以从呼出的呼吸中诊断出30多种疾病，但是当前的分析需要运送到实验室，需要一周多的时间）。例如;开发低压组合CVD以形成改进的半导体材料，包括硒化剂和相关材料，该副本的目的是使用组合LPCVD实现这些重要三元和高阶材料的高处理成本，高吞吐量和高质量的膜沉积。分级成分的薄膜将通过使用低压化学蒸气沉积与两个/三个独立的前体气流，例如一种用于硒化剂，一个用于硒耐加仑，另一个用于硒化铜。气流的扩散允许整个板的分级组成（例如Cugaxin1-XSE2）。

项目成果

期刊论文数量（10）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Visible light photocatalysts-N-doped TiO2 by sol-gel, enhanced with surface bound silver nanoparticle islands

DOI：
10.1039/c1jm11557j
发表时间：
2011-01-01
期刊：
JOURNAL OF MATERIALS CHEMISTRY
影响因子：
0
作者：
Dunnill, Charles W.;Ansari, Zarrin;Parkin, Ivan P.
通讯作者：
Parkin, Ivan P.

Aerosol-assisted deposition of gold nanoparticle-tin dioxide composite films

DOI：
10.1039/c3ra46828c
发表时间：
2014-01-01
期刊：
RSC ADVANCES
影响因子：
3.9
作者：
Chew, Clair;Bishop, Peter;Parkin, Ivan P.
通讯作者：
Parkin, Ivan P.

Copper-doped CdSe/ZnS quantum dots: controllable photoactivated copper(I) cation storage and release vectors for catalysis.

DOI：
10.1002/anie.201308778
发表时间：
2014-02-03
期刊：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
影响因子：
16.6
作者：
Bear, Joseph C.;Hollingsworth, Nathan;McNaughter, Paul D.;Mayes, Andrew G.;Ward, Michael B.;Nann, Thomas;Hogarth, Graeme;Parkin, Ivan P.
通讯作者：
Parkin, Ivan P.

Assessing the potential of metal oxide semiconducting gas sensors for illicit drug detection markers