IF 5.9 4区化学

结构化学 Pub Date : 2025-02-01 DOI: 10.1016/j.cjsc.2024.100430

Shuai Liang , Wen-Jing Jiang , Ji-Xiang Hu

引用次数: 0

An unexpected role of lanthanide substitution in thermally responsive phosphors NaLnTe2O7:Eu3+ (Ln = Y and Gd)

IF 5.9 4区化学

结构化学 Pub Date : 2025-02-01 DOI: 10.1016/j.cjsc.2024.100509

Hongzhi Zhang , Hong Li , Asif Ali Haider , Junpeng Li , Zhi Xie , Hongming Jiang , Conglin Liu , Rui Wang , Jing Zhu

{"title":"An unexpected role of lanthanide substitution in thermally responsive phosphors NaLnTe2O7:Eu3+ (Ln = Y and Gd)","authors":"Hongzhi Zhang , Hong Li , Asif Ali Haider , Junpeng Li , Zhi Xie , Hongming Jiang , Conglin Liu , Rui Wang , Jing Zhu","doi":"10.1016/j.cjsc.2024.100509","DOIUrl":"10.1016/j.cjsc.2024.100509","url":null,"abstract":"<div><div>Bifunctional applications in solid state lighting and optical thermometry are attractive in the optical field. Despite Eu3+ doped phosphors are widely used in white-LEDs, phosphors with high temperature sensitivity remain rare. Herein, NaLnTe2O7:Eu3+ (Ln = Y and Gd) phosphors were synthesized using a rapid microwave-assisted solid-state (MASS) method to fulfill these applications. Under 395 nm excitation, NaLnTe2O7:Eu3+ exhibit the characteristic 5D0→7FJ (J = 1–4) transitions of Eu3+. Substituting Gd3+ for Y3+ enhances the luminescence by approximately 2.42 times. Structural analyses reveal that the improved luminescent properties are attributed to the more distorted and appropriate coordination environment in NaGdTe2O7:Eu3+. Finally, white-LEDs using NaGdTe2O7:Eu3+ as the red-component produce white light with high Ra of 89. Furthermore, the distinct thermal responses of the 5D0 → 7FJ transitions enable NaLnTe2O7:Eu3+ to function as temperature sensors via fluorescence intensity ratio (FIR) strategy. NaYTe2O7:Eu3+ possesses the maximum relative/absolute sensitivity of 1.45%/15.93% K−1, whereas NaGdTe2O7:Eu3+ achieves the maximum relative/absolute sensitivity of 1.53%/30.24% K−1. This work highlights the significance of cationic substitution in enhancing luminescent properties for multifunctional applications.</div></div>","PeriodicalId":10151,"journal":{"name":"结构化学","volume":"44 2","pages":"Article 100509"},"PeriodicalIF":5.9,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143395873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structural determination and exotic resistive behaviour of α-RuI3 under high-pressure 高压下 α-RuI3 的结构测定和异域电阻行为

IF 5.9 4区化学

结构化学 Pub Date : 2025-02-01 DOI: 10.1016/j.cjsc.2024.100429

Zhongxiong Sun , Haili Song , Mei-Huan Zhao , Yijie Zeng , Man-Rong Li

引用次数: 0

Optimization strategy for rechargeable Zn metal batteries over wide-pH aqueous electrolytes 宽pH 水电解质锌金属充电电池的优化策略

IF 5.9 4区化学

结构化学 Pub Date : 2025-01-01 DOI: 10.1016/j.cjsc.2024.100407

Chuyuan Lin, Hui Lin, Lingxing Zeng

引用次数: 0

From [Ba3S][GeS4] to [Ba3CO3][MS4] (M = Ge, Sn): Enhancing optical anisotropy in IR birefringent crystals via functional group implantation

IF 5.9 4区化学

结构化学 Pub Date : 2025-01-01 DOI: 10.1016/j.cjsc.2024.100455

Yong-Fang Shi , Sheng-Hua Zhou , Zuju Ma , Xin-Tao Wu , Hua Lin , Qi-Long Zhu

{"title":"From [Ba3S][GeS4] to [Ba3CO3][MS4] (M = Ge, Sn): Enhancing optical anisotropy in IR birefringent crystals via functional group implantation","authors":"Yong-Fang Shi , Sheng-Hua Zhou , Zuju Ma , Xin-Tao Wu , Hua Lin , Qi-Long Zhu","doi":"10.1016/j.cjsc.2024.100455","DOIUrl":"10.1016/j.cjsc.2024.100455","url":null,"abstract":"<div><div>Birefringent crystals are crucial for manipulating light's phase and polarization, making them vital components in various optical devices. Traditionally, strategies for designing high-performance birefringent crystals have focused on modifying the parent structure. However, there are limited examples demonstrating how changing functional groups can effectively enhance birefringence (Δn), as such changes often significantly alter the crystal structure. In this study, we propose a “functional group implantation” strategy aiming at significantly improving birefringent performance within the chalcogenide system. This involves replacing the isotropic [S]2– ions with anisotropic π-conjugated [CO3]2– groups. We validated this approach through comprehensive comparisons between the chalcogenide [Ba3S][GeS4] and oxychalcogenide [Ba3CO3][MS4] (M = Ge and Sn), both of which adopt the same space group and feature the same arrangements of functional groups. Experimental characterization and theoretical calculations confirm that the [CO3]2– groups exhibit significantly greater polarization anisotropy than the [S]2– groups. This difference leads to a marked increase in Δn in [Ba3CO3][MS4] (ranging from 0.088 to 0.112 at 546 nm) compared to [Ba3S][GeS4] (0.021 at 546 nm). This finding not only broadens the structural chemistry of π-conjugated chalcogenides but also illustrates the potential of functional group implantation for designing infrared birefringent crystals with enhanced optical anisotropy.</div></div>","PeriodicalId":10151,"journal":{"name":"结构化学","volume":"44 1","pages":"Article 100455"},"PeriodicalIF":5.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143151359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrosynthesis of hydroxylamine from earth-abundant small molecules 用地球上丰富的小分子电合成羟胺

IF 5.9 4区化学

结构化学 Pub Date : 2025-01-01 DOI: 10.1016/j.cjsc.2024.100383

Wen-Bo Wei , Qi-Long Zhu

引用次数: 0

Lithium-ion rapid transport mechanism and channel design in solid electrolytes 固体电解质中的锂离子快速传输机制和通道设计

IF 5.9 4区化学

结构化学 Pub Date : 2025-01-01 DOI: 10.1016/j.cjsc.2024.100381

Jia-Hui Li , Jinkai Qiu , Cheng Lian

引用次数: 0

Improving the electrocatalysts for conversion-type anodes of alkali-ion batteries 改进碱性离子电池转换型阳极的电催化剂

IF 5.9 4区化学

结构化学 Pub Date : 2025-01-01 DOI: 10.1016/j.cjsc.2024.100408

Ajay Piriya Vijaya Kumar Saroja , Yuhan Wu , Yang Xu

引用次数: 0

Recent progress in steric modulation of MR-TADF materials and doping concentration independent OLEDs with narrowband emission

IF 5.9 4区化学

结构化学 Pub Date : 2025-01-01 DOI: 10.1016/j.cjsc.2024.100451

Jun-Yi Wang , Jue-Yu Bao , Zheng-Guang Wu , Zheng-Yin Du , Xunwen Xiao , Xu-Feng Luo

{"title":"Recent progress in steric modulation of MR-TADF materials and doping concentration independent OLEDs with narrowband emission","authors":"Jun-Yi Wang , Jue-Yu Bao , Zheng-Guang Wu , Zheng-Yin Du , Xunwen Xiao , Xu-Feng Luo","doi":"10.1016/j.cjsc.2024.100451","DOIUrl":"10.1016/j.cjsc.2024.100451","url":null,"abstract":"<div><div>Multiple-resonance thermally activated delayed fluorescence (MR-TADF) materials hold significant promise for advancing narrowband emissive organic light-emitting diodes (OLEDs) due to their attractive narrowband emission characteristics, high emission intensity, and tunable emission colors. However, the planar nature of MR-TADF materials leads to serve π-π stacking, which can result in concentration quenching and spectral broadening, thereby limiting their further application in OLEDs. Currently, to mitigate the π-π stacking in MR-TADF materials, steric modulation is a reliable design strategy for optimizing the related molecular structures. Depending on the specific shape and scope of steric modulation, it can be categorized into the introduction of bulky groups around the resonance core, “face-to-edge” and “face-to-face” shielding between the resonance core and the steric hindrance moiety. This review systematically summarizes the structural design of MR-TADF molecules based on the different steric modulation strategies and their progress in the doping concentration-independent OLEDs. It also discusses the challenges in this research area and offers an outlook on future developments. We believe that this review will drive the rapid industrialization of narrow-emission OLEDs.</div></div>","PeriodicalId":10151,"journal":{"name":"结构化学","volume":"44 1","pages":"Article 100451"},"PeriodicalIF":5.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143151356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Plasmonic nanocrystals with intrinsic chirality: Biomolecule-directed synthesis and applications

IF 5.9 4区化学

结构化学 Pub Date : 2025-01-01 DOI: 10.1016/j.cjsc.2024.100467

Yiming Yang , Lichao Sun , Qingfeng Zhang

引用次数: 0

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