Dyes and Pigments最新文献

“Molecular lock” - triggered single-arm twisting strategy to enhance the photothermal conversion ability and its mechanism “分子锁”触发单臂扭转策略增强光热转化能力及其机理

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-07-25 DOI: 10.1016/j.dyepig.2025.113071

Baoshuai Wang , Longfang Ren , Mingli Li , Fei Cheng , Taotao Qiang

{"title":"“Molecular lock” - triggered single-arm twisting strategy to enhance the photothermal conversion ability and its mechanism","authors":"Baoshuai Wang , Longfang Ren , Mingli Li , Fei Cheng , Taotao Qiang","doi":"10.1016/j.dyepig.2025.113071","DOIUrl":"10.1016/j.dyepig.2025.113071","url":null,"abstract":"<div><div>Boron dipyrromethene (BODIPY) is a high fluorescent sensitizer with visible light absorption properties (radiative transition: RT). In order to broaden its light absorption range and optimize its excited state performance, we have constructed BODIPY-like sensitizers with a \"single-arm\" structure using the \"molecular lock\" strategy. Theoretical calculations showed that the construction of the \"single-arm\" structure of the regular heterocyclic conjugated system raised the HOMO energy level of the molecule compared to BODIPY monomers, leading to a lower HOMO-LUMO energy gap and a broadened light absorption range in the near-infrared (NIR) region. The lower fluorescence quantum yield (5 %) indicated that the photosensitizer <strong>4</strong> had weak RT processes. TD-DFT calculations demonstrated that the \"single-arm\" twisting of the regular heterocyclic conjugated system slightly enhanced the intersystem crossing (ISC) abilities of photosensitizer <strong>4</strong>, which was further verified by transient absorption spectroscopy and singlet oxygen yield measurements. Under light irradiation, photosensitizer <strong>4</strong> exhibited reliable photothermal conversion efficiency, indicating strong non-radiative transition (NRT) abilities. Therefore, the \"molecular lock\" strategy can provide inspiration and experience for constructing NIR BODIPY-type photosensitizers with efficient NRT abilities.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"243 ","pages":"Article 113071"},"PeriodicalIF":4.1,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144713789","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

Real-time humidity monitoring using copper nanorods-based portable testing strips 使用基于铜纳米棒的便携式测试条进行实时湿度监测

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-07-24 DOI: 10.1016/j.dyepig.2025.113070

Jing Zhu , Kai-Qi Liu , Peng Shan , Fen-Ying Kong , Feng Li , Hang Gao , Zhong-Xia Wang

{"title":"Real-time humidity monitoring using copper nanorods-based portable testing strips","authors":"Jing Zhu , Kai-Qi Liu , Peng Shan , Fen-Ying Kong , Feng Li , Hang Gao , Zhong-Xia Wang","doi":"10.1016/j.dyepig.2025.113070","DOIUrl":"10.1016/j.dyepig.2025.113070","url":null,"abstract":"<div><div>Simple, rapid and sensitive humidity monitoring is of great significance in our daily life, health care, agriculture and industrial manufacture. Here, a humidity-responsive material, aminated copper nanorods (CuNRs) with disassembly-induced polychromatic emission activity, is reported. The optical behavior of CuNRs, including luminescent wavelength and intensity, significantly vary with the humidity. Experimental results combined with theoretical calculations unlock that the humidity response may be driven by the reconstruction of hydrogen-bond network in CuNRs interface. External –OH group can destroy inherent N–H⋯N–H network of CuNRs interface through the anisotropic hydrogen-bond forces, and generate an N–H⋯O–H network, eventually resulting in the variation of luminescent behaviors. More importantly, a portable CuNRs-based test strip was prepared for moisture sensing through the naked eye but also via a smartphone, enabling convenient on-site monitoring and demonstrating similar results to a commercialized electronic devices. This work not only fabricates a facile and reliable platform for humidity sensing, but also enriches the extant armory of responsive material in humidity studies and beyond.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"243 ","pages":"Article 113070"},"PeriodicalIF":4.1,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144702681","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

Impacts of alkyl side chain length on film formation and charge transport in π-extended anthradithiophenes 烷基侧链长度对π扩展反噻吩成膜和电荷输运的影响

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-07-24 DOI: 10.1016/j.dyepig.2025.113067

Hyo Chan Lee , Jeong-Min Seo , Hyo Chan Hong , Tatsuhiro Kojima , Yunseok Jang , Boseok Kang

{"title":"Impacts of alkyl side chain length on film formation and charge transport in π-extended anthradithiophenes","authors":"Hyo Chan Lee , Jeong-Min Seo , Hyo Chan Hong , Tatsuhiro Kojima , Yunseok Jang , Boseok Kang","doi":"10.1016/j.dyepig.2025.113067","DOIUrl":"10.1016/j.dyepig.2025.113067","url":null,"abstract":"<div><div>Thienoacenes, particularly anthradithiophene (ADT), have emerged as promising semiconductor materials for organic field-effect transistors (OFETs). ADT, an isoelectronic analogue of pentacene, features an extended π-system with an anthracene core connected to two thiophene rings. To enhance the solubility and stability of solution-processed ADT thin films, alkyl or alkylphenylethynyl side chain substitutions have been proposed. However, the limited understanding of how these side chain modifications influence the optical and electrical properties of ADT derivatives hinders the rational design of high-performance OFETs. To address this challenge, we synthesized a series of ADT derivatives substituted with alkylphenylethynyl groups (C<sub><em>n</em></sub>-PEADT, <em>n</em> = 4, 6, 8, and 10) and systematically studied the effects of varying side chain lengths on crystal structure, optical properties, and electrical performance. Our findings offer valuable insights into the relationship between side chain modifications and the microstructure and performance of these semiconducting materials, contributing to the advancement of organic electronic devices.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"243 ","pages":"Article 113067"},"PeriodicalIF":4.1,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711848","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

Hybrid nonfullerene acceptor merged from IT-4F and Y6 for efficient organic solar cells 由IT-4F和Y6合成的杂化非富勒烯受体用于高效有机太阳能电池

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-07-24 DOI: 10.1016/j.dyepig.2025.113065

Fangbo Zhao , Ming Sun , Zhihua Zhou , Lifei Yi , Jiamin Cao , Wenhong Peng , Qiang Tao , Wanqiang Liu , Xiaoyan Du , Donghong Yu

{"title":"Hybrid nonfullerene acceptor merged from IT-4F and Y6 for efficient organic solar cells","authors":"Fangbo Zhao , Ming Sun , Zhihua Zhou , Lifei Yi , Jiamin Cao , Wenhong Peng , Qiang Tao , Wanqiang Liu , Xiaoyan Du , Donghong Yu","doi":"10.1016/j.dyepig.2025.113065","DOIUrl":"10.1016/j.dyepig.2025.113065","url":null,"abstract":"<div><div>Over the last decade, power conversion efficiencies (PCEs) of organic solar cells (OSCs) have grown double to ∼20 %, which primarily originates from the development of non-fullerene acceptors (NFAs). Up to now, ITIC- and Y-series NFAs remain the most successful acceptor materials, with IT-4F and Y6 molecules being their representative compounds, respectively. Herein, a hybrid NFA TITT-2F, integrating structural features of both IT-4F and Y6, was developed, which is based on thieno[2′,3':4,5]thieno[3,2-<em>b</em>]indole-thieno[3,2-<em>b</em>]thiophene core incorporating a spiro group. As a result, TITT-2F exhibits medium crystallinity and absorption spectrum with a low optical bandgap of ∼1.44 eV, a planar molecular geometry, and suitably-aligned energy levels. An OSC based on PM6:TITT-2F afforded a respectable PCE of 12.16 %. Furthermore, a ternary PM6:5 %TITT-2F:95 %Y6 cell exhibited a promising PCE of 16.37 % with a <em>V</em><sub>OC</sub> of 0.86 V, a <em>J</em><sub>SC</sub> of 26.74 mA/cm<sup>2</sup>, and a fill factor (FF) of 71.56 %. These enhancements are attributed to balanced charge carrier mobilities, efficient exciton dissociation, and face-on orientation in blend films. These findings demonstrate that hybrid NFAs hold a great potential for well-performed OSC applications.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"243 ","pages":"Article 113065"},"PeriodicalIF":4.1,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711847","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

Vapochromic phenazine-crown ether/tetrafluoroterephthalic acid cocrystals for selective acetaldehyde detection 气相变色非那嗪冠醚/四氟对苯二甲酸共晶选择性检测乙醛

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-07-23 DOI: 10.1016/j.dyepig.2025.113066

Guo-Yan Liang, Xu-Xu Jia, Bing-Bing Shi, Hong Yao, Qi Lin, Wen-Juan Qu, Jin-Fa Chen, Tai-Bao Wei

{"title":"Vapochromic phenazine-crown ether/tetrafluoroterephthalic acid cocrystals for selective acetaldehyde detection","authors":"Guo-Yan Liang, Xu-Xu Jia, Bing-Bing Shi, Hong Yao, Qi Lin, Wen-Juan Qu, Jin-Fa Chen, Tai-Bao Wei","doi":"10.1016/j.dyepig.2025.113066","DOIUrl":"10.1016/j.dyepig.2025.113066","url":null,"abstract":"<div><div>The application of organic cocrystals in the field of selective vapochromic needs to be extensively exploited. The detection for acetaldehyde has great demand in preventing poisoning and explosion. Here, we successfully synthesized phenazino-15-crown-5 (<strong>PCE</strong>) and accomplished the cocrystal (named <strong>PCE⊂TFPA</strong>) with tetrafluoroterephthalic acid (<strong>TFPA</strong>). Interestingly, the cocrystal, as a solid-phase gas detection platform, had a selective fluorescence response to acetaldehyde among fatty aldehydes: with the adsorption and dissociation of acetaldehyde gas, the cocrystal fluorescence undergone a reversible opening-quenching change. This behavior could be attributed to acetaldehyde lowering the HOMO energy level of <strong>TFPA</strong> when the acetaldehyde molecule was close to the cocrystal. While simultaneously elevating excited state S<sub>1</sub> energy level of <strong>TFPA</strong>, which suppressed the CT process between host and guest molecules finally. Overall, this work on selective adsorption and cyclic response of harmful gases not only offers a general strategy for the efficient identification of organic vapors but also provides novel insights into the reversible gasochromic mechanism.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"243 ","pages":"Article 113066"},"PeriodicalIF":4.1,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711849","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

Recent advances in the construction, imaging and phototherapy applications of NIR-II J-aggregates based on different fluorophores 基于不同荧光团的NIR-II j聚集体的构建、成像和光疗应用的最新进展

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-07-22 DOI: 10.1016/j.dyepig.2025.113054

Gan Sun , Yurong Zhang , Na Zhou , Fangjun Huo , Caixia Yin

{"title":"Recent advances in the construction, imaging and phototherapy applications of NIR-II J-aggregates based on different fluorophores","authors":"Gan Sun , Yurong Zhang , Na Zhou , Fangjun Huo , Caixia Yin","doi":"10.1016/j.dyepig.2025.113054","DOIUrl":"10.1016/j.dyepig.2025.113054","url":null,"abstract":"<div><div>With the development of various near-infrared imaging technologies, near-infrared-II (NIR-II) (1000–1700 nm) dyes have attracted extensive attention from scientific researchers. NIR-II radiation exhibits superior tissue penetration capability, reduced tissue scattering effects, lower tissue autofluorescence, and minimized photodamage. These advantages provide possibilities for deeper in vivo imaging and promote advancements in biomedicine. Among them, J-aggregates are fluorescent materials composed of highly ordered organic dye molecules. In J-aggregates, the arrangement of monomer molecules' transition dipole moments in \"head-to-tail\" or \"slip-stacked\" configurations, almost parallel to the connecting central line, reduces excitonic state energy and induces strong interactions between intermolecular transition dipole moments, forming exciton coupling. Consequently, compared with monomers, J-aggregates exhibit longer absorption and emission wavelengths. Currently reported J-aggregate fluorescent dyes are mainly constructed from small organic fluorescent monomers such as cyanine and BODIPY. This review discusses strategies for constructing J-aggregates by different monomer molecules and their biological applications, and provides perspectives on future development strategies and potential application directions.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"243 ","pages":"Article 113054"},"PeriodicalIF":4.1,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144685640","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

Selective colorimetric sensing for As(III) via shape transformation of citrate-capped Ag nanoprisms 柠檬酸盐包盖银纳米棱镜形状转变对As（III）的选择性比色传感

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-07-22 DOI: 10.1016/j.dyepig.2025.113061

Saowanee Toonchue , Nakara Bhawawet , Kanet Wongravee , Apichat Imyim

{"title":"Selective colorimetric sensing for As(III) via shape transformation of citrate-capped Ag nanoprisms","authors":"Saowanee Toonchue , Nakara Bhawawet , Kanet Wongravee , Apichat Imyim","doi":"10.1016/j.dyepig.2025.113061","DOIUrl":"10.1016/j.dyepig.2025.113061","url":null,"abstract":"<div><div>A simple colorimetric method for As(III) determination was developed using citrate-stabilized silver nanoprisms (AgNPs) prepared via photo-mediated synthesis. This method enables the selective determination of As(III) without the use of other functionalizing or modifying agents. The colorimetric detection of As(III) is based on the morphology transition of AgNPrs via chemical etching. The morphology change can be observed by monitoring the decrease and shift of the local surface plasmon resonance (LSPR) spectrum. The method achieved the maximum change in absorbance ratio (A<sub>420</sub>/A<sub>580</sub>) within 2 min. The good interaction of citrate toward As(III) provides good selectivity and sensitivity of the method with the sensing range up to 300 μg L<sup>−1</sup> and the limit of detection of 18 μg L<sup>−1</sup>. The developed colorimetric method exhibits high tolerance in the presence of potential interfering ions, with a relative standard deviation of 5.3 %. Citrate-capped AgNPrs were successfully employed for the detection of As(III) ions in drinking water samples, yielding satisfactory recoveries of 81.8–93.4 % and precision with a relative standard deviation of 2.0–6.3 %.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"243 ","pages":"Article 113061"},"PeriodicalIF":4.1,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144702680","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 NIR-II AIE luminogen based nanoplatform with nitric oxide controlled release properties for NIR-II fluorescence guided combined photodynamic/photothermal/gas therapy 一种基于NIR-II AIE发光剂的纳米平台，具有一氧化氮控释特性，用于NIR-II荧光引导的光动力/光热/气体联合治疗

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-07-22 DOI: 10.1016/j.dyepig.2025.113060

Siyu Zhang , Weiping Zhou , Wei Zhou , Ruohui Zhang , Shuang Song , Chang Liu , Ying Li , Di He , Mahmood Hassan Akhtar , Cong Yu

{"title":"A NIR-II AIE luminogen based nanoplatform with nitric oxide controlled release properties for NIR-II fluorescence guided combined photodynamic/photothermal/gas therapy","authors":"Siyu Zhang , Weiping Zhou , Wei Zhou , Ruohui Zhang , Shuang Song , Chang Liu , Ying Li , Di He , Mahmood Hassan Akhtar , Cong Yu","doi":"10.1016/j.dyepig.2025.113060","DOIUrl":"10.1016/j.dyepig.2025.113060","url":null,"abstract":"<div><div>Phototherapy, which integrates photothermal therapy (PTT) and photodynamic therapy (PDT), offers an appealing strategy for the treatment of cancer. However, enhancing its therapeutic efficacy remains a significant challenge. Nitric oxide (NO) can serve as a valuable adjunct to overcome the limitations of phototherapy, and fluorescence imaging enables real-time, in vivo tracking of therapeutic agents, optimizing the treatment window and improving outcomes. Herein, we report the design and synthesis of a multifunctional nanomaterial platform (TBN) fabricated by encapsulating a small-molecule aggregation-induced emission (AIE) photosensitizer (TDPB) and a thermoresponsive nitric oxide (NO) donor (BNN6) using the amphiphilic polymer F127. TBN enables NIR-II fluorescence imaging (FLI)-guided multimodal cancer therapy by combining PDT, PTT, and NO therapy. Specifically, TDPB is capable of multiple functions including NIR-II FLI, effective hydroxyl radical (•OH) production and high photothermal conversion efficiency (PCE) performance. NIR-II imaging facilitates precise localization of the tumor during the phototherapeutic process. Additionally, the photothermal effect of TDPB triggers heat-responsive NO release from BNN6, enhancing therapeutic efficacy through gas therapy. Consequently, both in vitro and in vivo experiments have clearly demonstrated that TBN can achieve precise tumor targeting and effective ablation while maintaining excellent biocompatibility. This study thus presents a novel strategy for designing a multifunctional therapeutic nanoplatform with enhanced treatment precision and efficacy.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"243 ","pages":"Article 113060"},"PeriodicalIF":4.1,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144713791","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

Unlocking room temperature phosphorescence in dibenzothiophene-based systems via the Scholl reaction 通过Scholl反应释放二苯并噻吩基体系的室温磷光

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-07-22 DOI: 10.1016/j.dyepig.2025.113053

Clara Fabregat , Roger Bujaldón , Jaume Garcia-Amorós , Dmytro Volyniuk , Melika Ghasemi , Juozas V. Grazulevicius , Dolores Velasco

{"title":"Unlocking room temperature phosphorescence in dibenzothiophene-based systems via the Scholl reaction","authors":"Clara Fabregat , Roger Bujaldón , Jaume Garcia-Amorós , Dmytro Volyniuk , Melika Ghasemi , Juozas V. Grazulevicius , Dolores Velasco","doi":"10.1016/j.dyepig.2025.113053","DOIUrl":"10.1016/j.dyepig.2025.113053","url":null,"abstract":"<div><div>A family of butterfly-shaped diphenanthro[9,10-<em>b</em>:9′,10′-<em>d</em>]thiophene derivatives has been straightforwardly synthesized from tetrabromothiophene via consecutive Suzuki-Miyaura and Scholl reactions, targeting potential charge-transporting and light-emitting organic materials. Indeed, time of flight measurements displayed hole mobility values up to 4.7 × 10<sup>−5</sup> cm<sup>2</sup> V<sup>−1</sup> s<sup>−1</sup> under an applied electric field of 6 × 10<sup>5</sup> V cm<sup>−1</sup>. Spectroscopic studies showed promising photoluminescence, with quantum yields up to 27.5 % and adjustable emissions ranging from deep blue to sky blue in solution and in solid films, respectively. Moreover, the synthesized compounds revealed room-temperature phosphorescence when introduced as dopants in Zeonex films, a highly sought-after characteristic in metal- and halogen-free organic materials. This phenomenon delineates a spectral transition from deep blue to warm-white emission as the environment shifts from air-equilibrated to vacuum conditions, which entails different applications such as lighting or oxygen-sensing devices. Phosphorescence, which was further corroborated in dilute solutions of THF at 77 K, does not occur on the non-cyclized synthetic precursors, demonstrating the key role of the Scholl reaction to unlock it. These findings make evidence of the potential of this core for advancing optoelectronic device functionalities.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"243 ","pages":"Article 113053"},"PeriodicalIF":4.1,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144713773","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

Packing structures and piezochromic properties engineering through F functionalization in 4-position substituted coumarin based organic luminogens 4位取代香豆素基有机发光素的F功能化填料结构和压致变色性能工程

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-07-21 DOI: 10.1016/j.dyepig.2025.113055

Miao Yang , Jingwen Guo , Shijie Fu , Yuhan Zhang , Longmei Yang , Qian Li , Yan Bao , Chengyuan Wang

{"title":"Packing structures and piezochromic properties engineering through F functionalization in 4-position substituted coumarin based organic luminogens","authors":"Miao Yang , Jingwen Guo , Shijie Fu , Yuhan Zhang , Longmei Yang , Qian Li , Yan Bao , Chengyuan Wang","doi":"10.1016/j.dyepig.2025.113055","DOIUrl":"10.1016/j.dyepig.2025.113055","url":null,"abstract":"<div><div>Organic luminogens (OLs) exhibiting piezochromic (PC) properties upon external force stimuli have attracted much research interests due to their great application potentials as pressure sensors, anti-counterfeiting materials, <em>etc</em>. In this work, four coumarin derivatives (<strong>4-CPF1</strong>, <strong>4-CPF2</strong>, <strong>4-CPF3</strong>, and <strong>4-CPFM</strong>) with fluorine modified phenyl substituents at 4-position were designed and synthesized, in which the number and positions of the F atoms are differed. Their single-crystal structures were successfully determined to elucidate the molecular conformations and packing structures, and their photophysical properties in both diluted solution and the aggregated state were studied by various spectroscopic analysis. The PC properties of these materials were investigated by both mechanical grinding (MG) and applying hydrostatic pressure (HP). Upon MG, these materials all show PC responses except for <strong>4-CPF2</strong>, and in particular, <strong>4-CPF3</strong> and <strong>4-CPFM</strong> exhibit certain self-recovery under ambient conditions. Under HP, all these materials reveal typical PC properties with different pressure coefficients of emission wavelength, and the reversibility of their fluorescence is varied as well, depending on the position and number of F substitutions. The differences in the PC properties, both upon MG and under HP, are well correlated with their molecular organizations and packing structures in the aggregated state. Our study not only confirms the great application potentials of coumarin derivatives with 4-position substituents as PC materials, but also indicates that F functionalization is an effective strategy for tuning the aggregated-state structures of coumarin based OLs, together with their photophysical and PC properties.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"243 ","pages":"Article 113055"},"PeriodicalIF":4.1,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144685642","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