Dyes and Pigments最新文献_第10页

Synthesis and reversible thermochromic behavior of diketopyrrolopyrrole dyes 二酮吡咯吡咯染料的合成及其可逆热致变色性能

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-03-10 DOI: 10.1016/j.dyepig.2025.112753

Hyungkyu Moon , T. Sheshashena Reddy , Myung-Seok Choi

引用次数: 0

The critical role of the small singlet-triplet energy gap in heavy-atom containing TADF emitters for high performance electroluminescence 小单重态-三重态能隙在含重原子TADF发射体中对高性能电致发光的关键作用

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-03-10 DOI: 10.1016/j.dyepig.2025.112752

Zhengqi Xiao , Yang Zou , Yanyun Jing , Ruihan Zhong , Xiaosong Cao , Jingsheng Miao , Chuluo Yang , Xiaojun Peng

{"title":"The critical role of the small singlet-triplet energy gap in heavy-atom containing TADF emitters for high performance electroluminescence","authors":"Zhengqi Xiao , Yang Zou , Yanyun Jing , Ruihan Zhong , Xiaosong Cao , Jingsheng Miao , Chuluo Yang , Xiaojun Peng","doi":"10.1016/j.dyepig.2025.112752","DOIUrl":"10.1016/j.dyepig.2025.112752","url":null,"abstract":"<div><div>Thermally activated delayed fluorescent (TADF) molecules are promising emitters for organic light-emitting diodes (OLEDs). However, they often experience significant efficiency roll-off at high brightness levels due to a relatively slow reverse intersystem crossing rate (<em>k</em><sub>RISC</sub>). Both a small singlet-triplet energy gap (Δ<em>E</em><sub>ST</sub>) and the heavy-atom effect have been shown to effectively accelerate the <em>k</em><sub>RISC</sub> of TADF emitters. Despite this, the interplay and relative importance of these two factors have rarely been explored. In this study, we designed two TADF emitters by connecting a selenium-containing electron donor with a triazine acceptor. Although both emitters share a similar molecular framework, the heavy-atom effect in the control emitter, which has a larger Δ<em>E</em><sub>ST</sub>, negatively impacts its optical properties, leading to a lower photoluminescence quantum yield (PLQY) and weaker TADF characteristics. In contrast, the emitter with a smaller Δ<em>E</em><sub>ST</sub> exhibits significantly better optical properties, including higher PLQY, much faster <em>k</em><sub>RISC</sub>, and consequently, improved device performance. This work highlights that a small Δ<em>E</em><sub>ST</sub> is the prerequisite for the heavy-atom effect to enhance <em>k</em><sub>RISC</sub> and optimize TADF molecule design.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112752"},"PeriodicalIF":4.1,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143611605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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A review of the applications of fluorescent Schiff-base sensors for the metal ions detection and AIE properties 综述了荧光希夫碱传感器在金属离子检测中的应用及其AIE特性

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-03-09 DOI: 10.1016/j.dyepig.2025.112748

Ishan Chaturvedi , Saurabh Vyas , Roli Mishra

引用次数: 0

Near-infrared fluorescent BODIPY dyes: Green synthesis, photophysical properties, and their applications in biomedical molecular imaging 近红外荧光BODIPY染料：绿色合成、光物理性质及其在生物医学分子成像中的应用

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-03-07 DOI: 10.1016/j.dyepig.2025.112740

Raúl Segovia-Pérez, Marisol Ibarra-Rodríguez, Blanca M. Muñoz-Flores, Víctor M. Jiménez-Pérez

引用次数: 0

Exploring the electrochromic and electrofluorochromic responses triggered by carbazole when grafted on triphenylmethane in polyimide 探讨咔唑接枝聚酰亚胺中三苯基甲烷引发的电致变色和电致荧光反应

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-03-07 DOI: 10.1016/j.dyepig.2025.112749

Andra-Elena Bejan, Catalin-Paul Constantin, Mariana-Dana Damaceanu

{"title":"Exploring the electrochromic and electrofluorochromic responses triggered by carbazole when grafted on triphenylmethane in polyimide","authors":"Andra-Elena Bejan, Catalin-Paul Constantin, Mariana-Dana Damaceanu","doi":"10.1016/j.dyepig.2025.112749","DOIUrl":"10.1016/j.dyepig.2025.112749","url":null,"abstract":"<div><div>We report a facile strategy for developing electro(fluoro)chromic (EC/EFC) polyimides by incorporating a new structurally designed diamine containing carbazole-substituted triphenylmethane, which serves as a building block responsible for the EC/EFC effects. Three dianhydrides with variable planarity and flexibility were selected to construct the polyimides, which proved to play an essential role in tailoring the EC/EFC response. Besides structural and physico-chemical characterization, a detailed study was carried out concerning their electrochemical behavior, highlighting the formation of polymer dimers or polymer networks by electropolymerization contingent on the macromolecule's solid-state arrangements. We have demonstrated that the dimerization process leads to polymer structures with a relatively high EC efficiency (up to 372 cm<sup>2</sup>/C) and significant recovery of this parameter (up to 96 %) after 100 cycles. Although the polymers exhibited high emission in the solid-state <em>via</em> the AIE effect, this was effectively reduced by applying oxidation potentials as a result of initial geometry orientation changing. Thus, the present polyimides can simultaneously integrate EC and EFC characteristics, suggesting that dimerization and aggregation can be considered appropriate pathways to improve the EC/EFC behavior of polymers containing carbazole units.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112749"},"PeriodicalIF":4.1,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bioinspired PEDOT-PVDF(HFP) structural color film for visualizing flexible electronics 仿生PEDOT-PVDF（HFP）结构彩色薄膜，用于可视化柔性电子器件

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-03-07 DOI: 10.1016/j.dyepig.2025.112751

Pingping Wu , Junchao Liu , Songtao Shao , Yuanyuan Shang , Jingxia Wang

{"title":"Bioinspired PEDOT-PVDF(HFP) structural color film for visualizing flexible electronics","authors":"Pingping Wu , Junchao Liu , Songtao Shao , Yuanyuan Shang , Jingxia Wang","doi":"10.1016/j.dyepig.2025.112751","DOIUrl":"10.1016/j.dyepig.2025.112751","url":null,"abstract":"<div><div>Flexible electronics have garnered significant attention in various applications, including wearable devices, disease diagnosis, and healthcare monitoring. Herein, inspired by the extensibility of skin and the color-changing principles observed in chameleons, a special conductive and stretchable structural color film is designed for visualizing flexible electronics. This inverse opal composite film (PEDOT-PVDF(HFP)-IO film) is fabricated by integrating poly(3,4-ethylenedioxythiophene) (PEDOT), polyvinylidene fluoride-hexafluoropropylene copolymer (PVDF(HFP)), and photonic crystal (PC) structures through electro-polymerization, self-assembly, thermal evaporation, and template sacrifice process. The PEDOT-PVDF(HFP)-IO film displays stable optical and electrical dual signal sensing, which results from the PC structures of the PVDF(HFP) layer and the conductivity of the PEDOT layer. Notably, the film exhibits an interactive color-changing capability, along with stable and sensitive conductivity during dynamic movements, making it suitable for use as a photoelectric sensing platform. This study can present a novel research approach for the visualization of flexible electronics.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112751"},"PeriodicalIF":4.1,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A fluorescent probe for enantioselective recognition of amino acids in solutions, cells and zebrafishes 一种在溶液、细胞和斑马鱼中对映体选择性识别氨基酸的荧光探针

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-03-06 DOI: 10.1016/j.dyepig.2025.112739

Shi-Wei Fu , Zong-Xing Huang , Chuan-Zhi Ni , Fang-Qi Zhang , Yang Li , Yuan-Yuan Zhu , Qi Sun , Shuang-Xi Gu

{"title":"A fluorescent probe for enantioselective recognition of amino acids in solutions, cells and zebrafishes","authors":"Shi-Wei Fu , Zong-Xing Huang , Chuan-Zhi Ni , Fang-Qi Zhang , Yang Li , Yuan-Yuan Zhu , Qi Sun , Shuang-Xi Gu","doi":"10.1016/j.dyepig.2025.112739","DOIUrl":"10.1016/j.dyepig.2025.112739","url":null,"abstract":"<div><div>Binaphthyl-based chiral fluorescent probes (<em>S</em>)-/(<em>R</em>)-<strong>1</strong> featuring a 2-methylthiophenimide unit were designed and synthesized. The fluorescent response to enantiomer pairs of amino acids revealed that (<em>S</em>)- and (<em>R</em>)-enantimer of the probe had chiral bias to L- and <span>d</span>-amino acids, respectively. The compound (<em>S</em>)-<strong>1</strong> showed outstanding enantioselective fluorescence enhancement toward 10 amino acids (Asn, Glu, Val, Leu, Met, Ser, Gln, Arg, Phe and Ala) in both solvents of EtOH/H<sub>2</sub>O and DMSO/H<sub>2</sub>O at the condition of pH 7.5. Extremely high enantiomeric fluorescence enhancement ratio (<em>ef</em>, [I<sub>L</sub>-I<sub>0</sub>]/[I<sub>D</sub>-I<sub>0</sub>]) were obtained for Asn (646.2), Glu (318.9), Val (255.6), Leu (252.4), Thr (223.9) in EtOH/H<sub>2</sub>O, and the <em>ef</em> values to Val, Ala, Ser, Glu, Arg, Gln were all larger than 20 in DMSO/H<sub>2</sub>O. Chiral fluorescent imaging of the four amino acids (Ser, Val, Arg and Gln) were obtained in both living cells and zebrafishes <em>via</em> the probe (<em>R</em>)-<strong>1</strong>, which provides a new concept for the diagnosis and treatment of diseases associated with amino acid racemization. Results of <sup>1</sup>H NMR and HRMS revealed the enantioselective fluorescence enhancement mechanism.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112739"},"PeriodicalIF":4.1,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143579802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interlayer enhancement of organic solar cells efficiency 有机太阳能电池效率的层间增强

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-03-05 DOI: 10.1016/j.dyepig.2025.112738

Yuanyuan Zhou , Yaohua Shi , Miao Li , Xingjie Wang , Qianqian Zhu , Ziyou Duan , Lulu Jiang , Jien Yang , Chaochao Qin , Ruiping Qin

{"title":"Interlayer enhancement of organic solar cells efficiency","authors":"Yuanyuan Zhou , Yaohua Shi , Miao Li , Xingjie Wang , Qianqian Zhu , Ziyou Duan , Lulu Jiang , Jien Yang , Chaochao Qin , Ruiping Qin","doi":"10.1016/j.dyepig.2025.112738","DOIUrl":"10.1016/j.dyepig.2025.112738","url":null,"abstract":"<div><div>aliphatic amine-functionalized perylene-diimide (PDINN) has strong unique hydrogen-bonding and electron self-doping effect so that it accelerates the leapfrog speed of organic solar cells (OSCs) efficiency to the highest present level. Here the dye, PDINN is modified by dicarboxylate and tetra-phenyl-phosphonium moieties obtaining two cathode interfacial materials PDOEN and PDOP. PDOEN is still retaining half aliphatic amine-function-group like PDINN; PDOP furnished with tetra-phenyl-phosphonium bromide. The two interfacial materials tuned the surface wettability, energy level alignment and physical contact properties, leading to device performance improvement. The power conversion efficiency was promoted from 15.43 % of PDINN based OSCs to 15.88 % of PDOEN based OSCs with PM6/Y6 as photo active system. For another photo active system PM6/L8-BO, this parameter also enhanced from 17.13 % (PDINN device) up to 17.45 % (PDOEN device). Except for the open circuit voltage, the photo current increasement is noteworthy and can be observed visually by photo-current map technology. The property of the two PDI-derivatives indicates that ester imide structures could be useful protocol in developing high-performance organic interlayer materials.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"239 ","pages":"Article 112738"},"PeriodicalIF":4.1,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143579801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Chemiluminescence of Cl-NCDs and KMnO4 systems based on waste pomelo peel for erythromycin detection 基于废柚皮的Cl-NCDs和KMnO4体系化学发光检测红霉素

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-03-05 DOI: 10.1016/j.dyepig.2025.112734

Hao Xue , Hong Zheng , Jing Xiang , Ke Cheng , Biyue Zhu

引用次数: 0

Fluorescent sensitive detection of luteolin in Chrysanthemum tea using boric acid functionalized binuclear Zn-Eu-MOFs 硼酸功能化双核zn - eu - mof荧光敏感检测菊花茶中的木犀草素

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-03-03 DOI: 10.1016/j.dyepig.2025.112737

Di Wu, Chengpei Du, Lingyan Ma, Rui Xiao, Long Tan, Wenjing Qi

{"title":"Fluorescent sensitive detection of luteolin in Chrysanthemum tea using boric acid functionalized binuclear Zn-Eu-MOFs","authors":"Di Wu, Chengpei Du, Lingyan Ma, Rui Xiao, Long Tan, Wenjing Qi","doi":"10.1016/j.dyepig.2025.112737","DOIUrl":"10.1016/j.dyepig.2025.112737","url":null,"abstract":"<div><div>Owing to Zn<sup>2+</sup>-sensitized fluorescent effect, boric acid functionalized zinc-europium binuclear metal-organic frameworks (<strong>Zn-Eu-MOFs</strong>) are synthesized and applied in fluorescent quenching detection of luteolin in <em>Chrysanthemum</em> tea for the first time. Eu<sup>3+</sup>/Zn<sup>2+</sup> and 5-boronobenzene-1,3-dicarboxylic acid (BBDC) are utilized via a fast one-pot microwave process at 120 °C for 1 h. Due to energy transfer efficiency change by “antenna” effect and better effective energy transfer of Zn<sup>2+</sup> than Eu<sup>3+</sup>, Zn<sup>2+</sup> increases fluorescence of <strong>Zn-Eu-MOFs</strong> nearly 3.5 times. Different ligands and different metal ions are compared to synthesize <strong>Zn-Eu-MOFs</strong>. Highly specific binding affinity of boric acid towards cis-diol structure in luteolin and chelating of Zn<sup>2+</sup> with luteolin achieves fluorescent quenching detection of luteolin with low limit of detection of 16 nΜ and high selectivity. When it is utilized in fluorescent detection of luteolin in water and <em>Chrysanthemum</em> tea, mean recoveries are obtained from 99.5 % to 102.7 % and from 99.3 % to 100.6 %, respectively.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"238 ","pages":"Article 112737"},"PeriodicalIF":4.1,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0