Photoelectric properties of the semiconductor Bi2YbO4Cl with broad spectral response

IF 7.2 1区化学 Q1 CHEMISTRY, APPLIED

Journal of Rare Earths Pub Date : 2024-09-14 DOI:10.1016/j.jre.2024.09.016

Qibing Li , Hong Li , Kai Zhang , Tianwu Wang , Guangyou Fang

{"title":"Photoelectric properties of the semiconductor Bi2YbO4Cl with broad spectral response","authors":"Qibing Li , Hong Li , Kai Zhang , Tianwu Wang , Guangyou Fang","doi":"10.1016/j.jre.2024.09.016","DOIUrl":null,"url":null,"abstract":"<div><div>Bi2YbO4Cl with a fluorite layer structure belongs to the family of the bismuth rare-earth oxyhalides Bi2REO4X (X = Cl, Br, I). However, the synthesis and photoelectric properties of Bi2YbO4Cl have almost not been reported. In this work, Bi2YbO4Cl was synthesized using the solid-state method and the solvothermal method. Yb3+ ions show a strong characteristic absorption peak at 980 nm, which was measured by ultraviolet–visible–near-infrared absorption spectra. The transient photoconductivity of Bi2YbO4Cl was obtained by time-resolved terahertz spectroscopy system under 400 and 800 nm laser excitations, respectively. The frequency-dependent transient photoconductivity analysis reveals the Drude-Smith behavior in Bi2YbO4Cl. Under photoexcitation, the hot charge carriers with a long relaxation lifetime and a carrier mobility of 48 cm2/(V·s) are obtained. The synthesis of Bi2YbO4Cl is of great significance for the development of novel photocatalytic and photoharvesting materials with broad spectral response.</div></div>","PeriodicalId":16940,"journal":{"name":"Journal of Rare Earths","volume":"43 9","pages":"Pages 1852-1858"},"PeriodicalIF":7.2000,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Rare Earths","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1002072124003314","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}

引用次数: 0

Abstract

Bi₂YbO₄Cl with a fluorite layer structure belongs to the family of the bismuth rare-earth oxyhalides Bi₂REO₄X (X = Cl, Br, I). However, the synthesis and photoelectric properties of Bi₂YbO₄Cl have almost not been reported. In this work, Bi₂YbO₄Cl was synthesized using the solid-state method and the solvothermal method. Yb³⁺ ions show a strong characteristic absorption peak at 980 nm, which was measured by ultraviolet–visible–near-infrared absorption spectra. The transient photoconductivity of Bi₂YbO₄Cl was obtained by time-resolved terahertz spectroscopy system under 400 and 800 nm laser excitations, respectively. The frequency-dependent transient photoconductivity analysis reveals the Drude-Smith behavior in Bi₂YbO₄Cl. Under photoexcitation, the hot charge carriers with a long relaxation lifetime and a carrier mobility of 48 cm²/(V·s) are obtained. The synthesis of Bi₂YbO₄Cl is of great significance for the development of novel photocatalytic and photoharvesting materials with broad spectral response.

Abstract Image

查看原文本刊更多论文

具有广谱响应的半导体Bi2YbO4Cl的光电特性

具有萤石层状结构的Bi2YbO4Cl属于铋系稀土氧卤化物Bi2REO4X族（X = Cl, Br， I）。然而，Bi2YbO4Cl的合成及其光电性质几乎没有报道。本文采用固相法和溶剂热法合成了Bi2YbO4Cl。Yb3+离子在980 nm处表现出较强的特征吸收峰，通过紫外-可见-近红外吸收光谱测定。利用时间分辨太赫兹光谱系统分别在400 nm和800 nm激光激发下获得了Bi2YbO4Cl的瞬态光电导率。频率相关的瞬态光电导率分析揭示了Bi2YbO4Cl中的德鲁德-史密斯行为。在光激发下，获得了弛豫寿命长、载流子迁移率为48 cm2/（V·s）的热载流子。Bi2YbO4Cl的合成对于开发具有广谱响应的新型光催化和光收集材料具有重要意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Rare Earths 化学-应用化学

CiteScore

8.70

自引率

14.30%

发文量

374

审稿时长

1.7 months

期刊介绍： The Journal of Rare Earths reports studies on the 17 rare earth elements. It is a unique English-language learned journal that publishes works on various aspects of basic theory and applied science in the field of rare earths (RE). The journal accepts original high-quality original research papers and review articles with inventive content, and complete experimental data. It represents high academic standards and new progress in the RE field. Due to the advantage of abundant RE resources of China, the research on RE develops very actively, and papers on the latest progress in this field emerge every year. It is not only an important resource in which technicians publish and obtain their latest research results on RE, but also an important way of reflecting the updated progress in RE research field. The Journal of Rare Earths covers all research and application of RE rare earths including spectroscopy, luminescence and phosphors, rare earth catalysis, magnetism and magnetic materials, advanced rare earth materials, RE chemistry & hydrometallurgy, RE metallography & pyrometallurgy, RE new materials, RE solid state physics & solid state chemistry, rare earth applications, RE analysis & test, RE geology & ore dressing, etc.