{"title":"用于快中子和伽马射线探测的掺 Cl 二维 (PEA)2PbBr4 包晶石单晶体的表征†。","authors":"Wei Xie, Sha Gong, Fuyun Hu and Liping Peng","doi":"10.1039/D4RA04354E","DOIUrl":null,"url":null,"abstract":"<p >In this paper, a high-quality Cl-doped two-dimensional halide perovskite (PEA)<small><sub>2</sub></small>Pb(Br<small><sub>0.95</sub></small>Cl<small><sub>0.05</sub></small>)<small><sub>4</sub></small> crystal was prepared using a seed-induced volatile solvent method. On optimizing the Cl<small><sup>−</sup></small> doping concentration, we found that 5% Cl-doping results in (PEA)<small><sub>2</sub></small>PbBr<small><sub>4</sub></small> with the highest optical and photon yield. Based on the Cl-doped (PEA)<small><sub>2</sub></small>PbBr<small><sub>4</sub></small> single crystal, the response characterization of the (PEA)<small><sub>2</sub></small>Pb(Br<small><sub>0.95</sub></small>Cl<small><sub>0.05</sub></small>)<small><sub>4</sub></small> crystal in the mixed field of neutrons and gamma rays (n/γ) has been verified. Using the time-of-flight method and the linear relationship between integral charge and neutron yield, it was proved that (PEA)<small><sub>2</sub></small>Pb(Br<small><sub>0.95</sub></small>Cl<small><sub>0.05</sub></small>)<small><sub>4</sub></small> crystal can be used for n/γ screening. The time difference between the fast neutron released by a single nuclear reaction and the γ photon arriving at the detector was 130 ns, and the arrival time of the γ photon is earlier than that of the fast neutron. This work has a broad application prospect in the study of nuclear reaction kinetics, the monitoring of the neutron yield of fusion devices and the total energy released by nuclear reactions.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 37","pages":" 27196-27203"},"PeriodicalIF":4.6000,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ra/d4ra04354e?page=search","citationCount":"0","resultStr":"{\"title\":\"Characterization of Cl-doped two-dimensional (PEA)2PbBr4 perovskite single crystals for fast neutron and gamma ray detection†\",\"authors\":\"Wei Xie, Sha Gong, Fuyun Hu and Liping Peng\",\"doi\":\"10.1039/D4RA04354E\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >In this paper, a high-quality Cl-doped two-dimensional halide perovskite (PEA)<small><sub>2</sub></small>Pb(Br<small><sub>0.95</sub></small>Cl<small><sub>0.05</sub></small>)<small><sub>4</sub></small> crystal was prepared using a seed-induced volatile solvent method. On optimizing the Cl<small><sup>−</sup></small> doping concentration, we found that 5% Cl-doping results in (PEA)<small><sub>2</sub></small>PbBr<small><sub>4</sub></small> with the highest optical and photon yield. Based on the Cl-doped (PEA)<small><sub>2</sub></small>PbBr<small><sub>4</sub></small> single crystal, the response characterization of the (PEA)<small><sub>2</sub></small>Pb(Br<small><sub>0.95</sub></small>Cl<small><sub>0.05</sub></small>)<small><sub>4</sub></small> crystal in the mixed field of neutrons and gamma rays (n/γ) has been verified. Using the time-of-flight method and the linear relationship between integral charge and neutron yield, it was proved that (PEA)<small><sub>2</sub></small>Pb(Br<small><sub>0.95</sub></small>Cl<small><sub>0.05</sub></small>)<small><sub>4</sub></small> crystal can be used for n/γ screening. The time difference between the fast neutron released by a single nuclear reaction and the γ photon arriving at the detector was 130 ns, and the arrival time of the γ photon is earlier than that of the fast neutron. This work has a broad application prospect in the study of nuclear reaction kinetics, the monitoring of the neutron yield of fusion devices and the total energy released by nuclear reactions.</p>\",\"PeriodicalId\":102,\"journal\":{\"name\":\"RSC Advances\",\"volume\":\" 37\",\"pages\":\" 27196-27203\"},\"PeriodicalIF\":4.6000,\"publicationDate\":\"2024-08-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://pubs.rsc.org/en/content/articlepdf/2024/ra/d4ra04354e?page=search\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"RSC Advances\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://pubs.rsc.org/en/content/articlelanding/2024/ra/d4ra04354e\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"RSC Advances","FirstCategoryId":"92","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2024/ra/d4ra04354e","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Characterization of Cl-doped two-dimensional (PEA)2PbBr4 perovskite single crystals for fast neutron and gamma ray detection†
In this paper, a high-quality Cl-doped two-dimensional halide perovskite (PEA)2Pb(Br0.95Cl0.05)4 crystal was prepared using a seed-induced volatile solvent method. On optimizing the Cl− doping concentration, we found that 5% Cl-doping results in (PEA)2PbBr4 with the highest optical and photon yield. Based on the Cl-doped (PEA)2PbBr4 single crystal, the response characterization of the (PEA)2Pb(Br0.95Cl0.05)4 crystal in the mixed field of neutrons and gamma rays (n/γ) has been verified. Using the time-of-flight method and the linear relationship between integral charge and neutron yield, it was proved that (PEA)2Pb(Br0.95Cl0.05)4 crystal can be used for n/γ screening. The time difference between the fast neutron released by a single nuclear reaction and the γ photon arriving at the detector was 130 ns, and the arrival time of the γ photon is earlier than that of the fast neutron. This work has a broad application prospect in the study of nuclear reaction kinetics, the monitoring of the neutron yield of fusion devices and the total energy released by nuclear reactions.
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An international, peer-reviewed journal covering all of the chemical sciences, including multidisciplinary and emerging areas. RSC Advances is a gold open access journal allowing researchers free access to research articles, and offering an affordable open access publishing option for authors around the world.
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