铁电极化改善了铈掺杂钛酸钡基同轴纳米棒阵列的光电化学性能

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2025-05-01 DOI:10.1016/j.ceramint.2025.01.531

Lingchun Lu, Yang Yang, Hongbo Ji, Qingshan Lu

{"title":"铁电极化改善了铈掺杂钛酸钡基同轴纳米棒阵列的光电化学性能","authors":"Lingchun Lu, Yang Yang, Hongbo Ji, Qingshan Lu","doi":"10.1016/j.ceramint.2025.01.531","DOIUrl":null,"url":null,"abstract":"<div><div>The coupling of semiconductors with ferroelectrics provides a strategy to modulate the photoelectrochemical properties which greatly influences the photocatalysis performance. Cerium-doped barium titanate-based coaxial nanorod arrays (TiO2/Ba1-xCexTiO3/TiO2) are designed and fabricated through the introduction of Ba1-xCexTiO3 nanolayer between the internal rutile TiO2 nanorod and the outermost anatase TiO2 film. The TiO2/Ba1-xCexTiO3/TiO2 nanorods exhibit an average length of 339 nm and a diameter of 66 nm. A piezoelectric coefficient d33 of 437.5 p.m./V is achieved at the Ce doping concentration of 0.06. The improved photocurrent response and electrochemical impedance of TiO2/Ba0.94Ce0.06TiO3/TiO2 are attributed to ferroelectric polarization induced by lattice distortion owing to Ce doping. After positive poling at 3 V, the photocurrent response is increased to the 1.27 times of the initial value. The uniform orientation of ferroelectric domains under electric field results in the increased polarization intensity, which promotes the separation and migration of the photogenerated carriers, yielding the improved photoelectrochemical properties.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"51 13","pages":"Pages 17575-17582"},"PeriodicalIF":5.1000,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Ferroelectric polarization improved photoelectrochemical properties of cerium-doped barium titanate-based coaxial nanorod arrays\",\"authors\":\"Lingchun Lu, Yang Yang, Hongbo Ji, Qingshan Lu\",\"doi\":\"10.1016/j.ceramint.2025.01.531\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The coupling of semiconductors with ferroelectrics provides a strategy to modulate the photoelectrochemical properties which greatly influences the photocatalysis performance. Cerium-doped barium titanate-based coaxial nanorod arrays (TiO2/Ba1-xCexTiO3/TiO2) are designed and fabricated through the introduction of Ba1-xCexTiO3 nanolayer between the internal rutile TiO2 nanorod and the outermost anatase TiO2 film. The TiO2/Ba1-xCexTiO3/TiO2 nanorods exhibit an average length of 339 nm and a diameter of 66 nm. A piezoelectric coefficient d33 of 437.5 p.m./V is achieved at the Ce doping concentration of 0.06. The improved photocurrent response and electrochemical impedance of TiO2/Ba0.94Ce0.06TiO3/TiO2 are attributed to ferroelectric polarization induced by lattice distortion owing to Ce doping. After positive poling at 3 V, the photocurrent response is increased to the 1.27 times of the initial value. The uniform orientation of ferroelectric domains under electric field results in the increased polarization intensity, which promotes the separation and migration of the photogenerated carriers, yielding the improved photoelectrochemical properties.</div></div>\",\"PeriodicalId\":267,\"journal\":{\"name\":\"Ceramics International\",\"volume\":\"51 13\",\"pages\":\"Pages 17575-17582\"},\"PeriodicalIF\":5.1000,\"publicationDate\":\"2025-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Ceramics International\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0272884225005875\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, CERAMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ceramics International","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0272884225005875","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}

引用次数: 0

摘要

半导体与铁电体的耦合提供了一种调节光电化学性质的策略，这对光催化性能有很大的影响。通过在内部金红石型TiO2纳米棒和最外层锐钛矿型TiO2薄膜之间引入Ba1-xCexTiO3纳米层，设计并制备了掺铈钛酸钡基同轴纳米棒阵列（TiO2/Ba1-xCexTiO3/TiO2）。TiO2/Ba1-xCexTiO3/TiO2纳米棒的平均长度为339 nm，直径为66 nm。当Ce掺杂浓度为0.06时，压电系数d33为437.5 pm /V。TiO2/Ba0.94Ce0.06TiO3/TiO2的光电流响应和电化学阻抗的改善是由Ce掺杂引起的晶格畸变引起的铁电极化所致。在3v正极化后，光电流响应增加到初始值的1.27倍。电场作用下铁电畴取向均匀，极化强度增加，促进了光生载流子的分离和迁移，提高了光电化学性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Ferroelectric polarization improved photoelectrochemical properties of cerium-doped barium titanate-based coaxial nanorod arrays

The coupling of semiconductors with ferroelectrics provides a strategy to modulate the photoelectrochemical properties which greatly influences the photocatalysis performance. Cerium-doped barium titanate-based coaxial nanorod arrays (TiO₂/Ba_1-xCe_xTiO₃/TiO₂) are designed and fabricated through the introduction of Ba_1-xCe_xTiO₃ nanolayer between the internal rutile TiO₂ nanorod and the outermost anatase TiO₂ film. The TiO₂/Ba_1-xCe_xTiO₃/TiO₂ nanorods exhibit an average length of 339 nm and a diameter of 66 nm. A piezoelectric coefficient d₃₃ of 437.5 p.m./V is achieved at the Ce doping concentration of 0.06. The improved photocurrent response and electrochemical impedance of TiO₂/Ba_0.94Ce_0.06TiO₃/TiO₂ are attributed to ferroelectric polarization induced by lattice distortion owing to Ce doping. After positive poling at 3 V, the photocurrent response is increased to the 1.27 times of the initial value. The uniform orientation of ferroelectric domains under electric field results in the increased polarization intensity, which promotes the separation and migration of the photogenerated carriers, yielding the improved photoelectrochemical properties.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.