Daniel C. Jones, Michael C. Jollands, Shiyun Jin, Sebastian S. Stewart-Barry, Matthew W. Dale and Ben L. Green
{"title":"利用 FRET 和 Cr3+ 的发光寿命对部分质子化 Mg:α Al2O3 中的超低 H 浓度进行分辨和成像","authors":"Daniel C. Jones, Michael C. Jollands, Shiyun Jin, Sebastian S. Stewart-Barry, Matthew W. Dale and Ben L. Green","doi":"10.1039/D4TC02646B","DOIUrl":null,"url":null,"abstract":"<p >Measuring hydrogen concentrations in solid materials, <em>in situ</em>, at the low parts-per-million or parts-per-billion level is extremely challenging, with such concentrations being at or below detection limits of commonly used spectroscopic, ion beam and nuclear methods. Even if hydrogen is detectable, analyses may suffer from poor spatial resolution, precision and accuracy. Rather than measuring hydrogen directly, indirect methods may provide an alternative. Here, we present a novel technique where the luminescence lifetime of Cr<small><sup>3+</sup></small>, present as a contaminant at trace levels (sub-ppm) is used to determine hydrogen concentrations in single crystals of magnesium-doped corundum. The crystals are partially diffused with hydrogen, therefore providing a range of hydrogen concentrations to test the method. While we cannot currently fully quantify the data, we can estimate that hydrogen concentrations on the order of tens of parts-per-billion are readily detected with spatial resolution ∼1 μm. Results from lifetime imaging are corroborated and compared with ultraviolet-visible-near infrared and Fourier transform infrared spectroscopy. Overall, the method can be used to achieve significantly higher spatial resolution than widely used absorption techniques, with increased sensitivity. A further advantage is that the method can be used to resolve hydrogen concentration distributions in three dimensions.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":null,"pages":null},"PeriodicalIF":5.7000,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Resolving and imaging ultra-low H concentrations in partially protonated Mg:α Al2O3 using FRET and the luminescence lifetime of Cr3+†\",\"authors\":\"Daniel C. Jones, Michael C. Jollands, Shiyun Jin, Sebastian S. Stewart-Barry, Matthew W. Dale and Ben L. Green\",\"doi\":\"10.1039/D4TC02646B\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Measuring hydrogen concentrations in solid materials, <em>in situ</em>, at the low parts-per-million or parts-per-billion level is extremely challenging, with such concentrations being at or below detection limits of commonly used spectroscopic, ion beam and nuclear methods. Even if hydrogen is detectable, analyses may suffer from poor spatial resolution, precision and accuracy. Rather than measuring hydrogen directly, indirect methods may provide an alternative. Here, we present a novel technique where the luminescence lifetime of Cr<small><sup>3+</sup></small>, present as a contaminant at trace levels (sub-ppm) is used to determine hydrogen concentrations in single crystals of magnesium-doped corundum. The crystals are partially diffused with hydrogen, therefore providing a range of hydrogen concentrations to test the method. While we cannot currently fully quantify the data, we can estimate that hydrogen concentrations on the order of tens of parts-per-billion are readily detected with spatial resolution ∼1 μm. Results from lifetime imaging are corroborated and compared with ultraviolet-visible-near infrared and Fourier transform infrared spectroscopy. Overall, the method can be used to achieve significantly higher spatial resolution than widely used absorption techniques, with increased sensitivity. A further advantage is that the method can be used to resolve hydrogen concentration distributions in three dimensions.</p>\",\"PeriodicalId\":84,\"journal\":{\"name\":\"Journal of Materials Chemistry C\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.7000,\"publicationDate\":\"2024-09-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Chemistry C\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://pubs.rsc.org/en/content/articlelanding/2024/tc/d4tc02646b\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Chemistry C","FirstCategoryId":"1","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2024/tc/d4tc02646b","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Resolving and imaging ultra-low H concentrations in partially protonated Mg:α Al2O3 using FRET and the luminescence lifetime of Cr3+†
Measuring hydrogen concentrations in solid materials, in situ, at the low parts-per-million or parts-per-billion level is extremely challenging, with such concentrations being at or below detection limits of commonly used spectroscopic, ion beam and nuclear methods. Even if hydrogen is detectable, analyses may suffer from poor spatial resolution, precision and accuracy. Rather than measuring hydrogen directly, indirect methods may provide an alternative. Here, we present a novel technique where the luminescence lifetime of Cr3+, present as a contaminant at trace levels (sub-ppm) is used to determine hydrogen concentrations in single crystals of magnesium-doped corundum. The crystals are partially diffused with hydrogen, therefore providing a range of hydrogen concentrations to test the method. While we cannot currently fully quantify the data, we can estimate that hydrogen concentrations on the order of tens of parts-per-billion are readily detected with spatial resolution ∼1 μm. Results from lifetime imaging are corroborated and compared with ultraviolet-visible-near infrared and Fourier transform infrared spectroscopy. Overall, the method can be used to achieve significantly higher spatial resolution than widely used absorption techniques, with increased sensitivity. A further advantage is that the method can be used to resolve hydrogen concentration distributions in three dimensions.
期刊介绍:
The Journal of Materials Chemistry is divided into three distinct sections, A, B, and C, each catering to specific applications of the materials under study:
Journal of Materials Chemistry A focuses primarily on materials intended for applications in energy and sustainability.
Journal of Materials Chemistry B specializes in materials designed for applications in biology and medicine.
Journal of Materials Chemistry C is dedicated to materials suitable for applications in optical, magnetic, and electronic devices.
Example topic areas within the scope of Journal of Materials Chemistry C are listed below. This list is neither exhaustive nor exclusive.
Bioelectronics
Conductors
Detectors
Dielectrics
Displays
Ferroelectrics
Lasers
LEDs
Lighting
Liquid crystals
Memory
Metamaterials
Multiferroics
Photonics
Photovoltaics
Semiconductors
Sensors
Single molecule conductors
Spintronics
Superconductors
Thermoelectrics
Topological insulators
Transistors