Dyes and Pigments最新文献_第7页

Dual-functional fluorescence probe for detecting hydroxylamine and viscosity in living cells and zebrafish 双功能荧光探针用于检测活细胞和斑马鱼的羟胺和黏度

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2025-09-05 DOI: 10.1016/j.dyepig.2025.113218

Junyan Ma , Mingtao Zhao , Xiangtao Kong , Yisheng Liu , Dan Meng , Zhenxing Zhang

{"title":"Dual-functional fluorescence probe for detecting hydroxylamine and viscosity in living cells and zebrafish","authors":"Junyan Ma , Mingtao Zhao , Xiangtao Kong , Yisheng Liu , Dan Meng , Zhenxing Zhang","doi":"10.1016/j.dyepig.2025.113218","DOIUrl":"10.1016/j.dyepig.2025.113218","url":null,"abstract":"<div><div>Hydroxylamine is vital in biological processes, acting as a significant byproduct of cellular metabolism and a crucial intermediate in the transformation of <span>l</span>-arginine to nitric oxide (NO) and nitroxyl (HNO). This study presents the design and synthesis of a novel fluorescent probe, <strong>CSO-CY</strong>, which is constructed from a rigid planar thienocoumarin fluorophore connected to a cyanoacetate moiety through a carbon–carbon double bond. The probe interacts with hydroxylamine to produce an oxime derivative during hydroxylamine detection, leading to a reduction in fluorescence intensity at 653 nm and an enhancement at 490 nm. Moreover, fluorescence intensity at 466 nm incrementally rises in high-viscosity environments. Overall, <strong>CSO-CY</strong> demonstrates significant selectivity, a fast response time (25 s), and remarkable sensitivity (detection limit: 142 nM) in PBS buffer across an extensive pH range (6–11) towards sensing hydroxylamine, rendering it highly appropriate for intricate physiological conditions. The probe has been effectively utilized for the detection of hydroxylamine in living cells and zebrafish. These findings indicate that <strong>CSO-CY</strong> is a promising chemosensor for monitoring hydroxylamine dynamics and viscosity in biological systems, underscoring its considerable practical potential.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"245 ","pages":"Article 113218"},"PeriodicalIF":4.2,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145044735","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

Dyeing Kinetics and Compatibility of Disperse Blue 79, Disperse Red 167, and Disperse Orange 30 in Supercritical Carbon Dioxide Dyeing 分散蓝79、分散红167和分散橙30在超临界二氧化碳染色中的染色动力学和相容性

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2025-09-04 DOI: 10.1016/j.dyepig.2025.113215

Lijun Dai , Guotong Liao , Tian Zhang , Yuankang He , Jun Lai , Xiaojun Lin , Tingting Huang , Jinxin Lin

{"title":"Dyeing Kinetics and Compatibility of Disperse Blue 79, Disperse Red 167, and Disperse Orange 30 in Supercritical Carbon Dioxide Dyeing","authors":"Lijun Dai , Guotong Liao , Tian Zhang , Yuankang He , Jun Lai , Xiaojun Lin , Tingting Huang , Jinxin Lin","doi":"10.1016/j.dyepig.2025.113215","DOIUrl":"10.1016/j.dyepig.2025.113215","url":null,"abstract":"<div><div>In the field of supercritical fluid dyeing, research on dye compatibility remains limited, and the interactions between dyes and their compatibility mechanisms remain poorly understood. This situation has significantly hindered the widespread industrial adoption of supercritical waterless dyeing technology. Thus, developing stable and reliable dye formulations is crucial for facilitating its transition to industrial applications. Based on this, this study investigated the kinetic behavior and compatibility of three commonly used dyes: Disperse Blue 79 (DB 79), Disperse Red 167 (DR 167), and Disperse Orange 30 (DO 30) in the supercritical CO<sub>2</sub> dyeing system. First, the lifting curves and dyeing rate curves of the three dyes were analyzed. From the highly consistent trend of these curves, it can be inferred that they will have good compatibility in their combinations. Then, the adsorption and diffusion processes of these three dyes during dyeing process of polyester in supercritical CO<sub>2</sub> were investigated in detail from a kinetic perspective. It was found that chemical adsorption played an important role and there was a certain resistance during the adsorption process. The diffusion capabilities of the three dyes were also compared at different temperatures. In addition, the compatibility relationships between DB 79, DR 167, and DO 30 were further explored through specific color matching experiments. The stripping results of the blended dyes aligned closely with their initial blending ratios, confirming the exceptional compatibility of DB 79, DR 167, and DO 30.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"245 ","pages":"Article 113215"},"PeriodicalIF":4.2,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004460","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

Sulfur-Substituted Hemicyanine Nanosensors Enable Noninvasive Evaluation of Diabetic Liver Dysfunction through Cysteine Detection 硫代半胱氨酸纳米传感器通过半胱氨酸检测实现糖尿病肝功能障碍的无创评估

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2025-09-04 DOI: 10.1016/j.dyepig.2025.113216

Ren-Wei-Yang Zhang , Tong Wang , Zhi-Gang Hu , Kai Wang

{"title":"Sulfur-Substituted Hemicyanine Nanosensors Enable Noninvasive Evaluation of Diabetic Liver Dysfunction through Cysteine Detection","authors":"Ren-Wei-Yang Zhang , Tong Wang , Zhi-Gang Hu , Kai Wang","doi":"10.1016/j.dyepig.2025.113216","DOIUrl":"10.1016/j.dyepig.2025.113216","url":null,"abstract":"<div><div>Diabetic liver dysfunction is characterized by oxidative stress and disrupted cysteine (Cys) metabolism, but noninvasive monitoring tools remain lacking. Here, we developed a sulfur-substituted hemicyanine-based nanosensor (S-Nanoprobe) that generates enhanced near-infrared photoacoustic signals upon selective Cys recognition. The sulfur substitution improved vibrational relaxation efficiency, yielding a stronger photoacoustic signal than oxygen-substituted analogs, with a 0.12 μM detection limit and exceptional selectivity (no interference from homocysteine or glutathione). In streptozotocin-induced diabetic mice, the probe enabled noninvasive tracking of hepatic Cys dynamics, revealing significant Cys accumulation in diabetic mice (higher than controls), while metformin-treated mice showed intermediate levels. Histopathological analysis confirmed correlations between Cys levels and liver injury severity. This technology provides a novel molecular imaging approach for early assessment of diabetic liver dysfunction and establishes a versatile platform for studying thiol metabolism. The probe’s high specificity, biocompatibility, and signal-to-noise ratio make it promising for translational applications in metabolic disease monitoring.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"245 ","pages":"Article 113216"},"PeriodicalIF":4.2,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004468","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

Efficient energy transfer artificial light-harvesting hybrid supramolecular nanosensor based on semicyanine/BODIPY dyes and gold nanoparticles for detection of HSO3−/Cys 基于半菁/BODIPY染料和金纳米粒子的高效能量转移人工捕光混合超分子纳米传感器用于检测HSO3−/Cys

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2025-09-03 DOI: 10.1016/j.dyepig.2025.113213

Xu Li, Junbo Yin, Chunzhi Cui, Hong-Xian Han, Nansong Zhu, Long Yi Jin

{"title":"Efficient energy transfer artificial light-harvesting hybrid supramolecular nanosensor based on semicyanine/BODIPY dyes and gold nanoparticles for detection of HSO3−/Cys","authors":"Xu Li, Junbo Yin, Chunzhi Cui, Hong-Xian Han, Nansong Zhu, Long Yi Jin","doi":"10.1016/j.dyepig.2025.113213","DOIUrl":"10.1016/j.dyepig.2025.113213","url":null,"abstract":"<div><div>The artificial light-harvesting system, constructed through biomimetic design that mimics the step-by-step energy-transfer mechanism of natural photosynthesis, can significantly optimize energy-transfer efficiency. Herein, we report an efficient energy-transfer artificial light-harvesting hybrid supramolecular nanosensor based on semicyanine/BODIPY dyes and gold nanoparticles for detection of HSO<sub>3</sub><sup>−</sup>/cysteine. Firstly, we adopt the strategy of host-guest interaction and molecular co-assembly to meet the necessary conditions for fluorescence resonance energy transfer between naphthalene diimide-functionalized pillar[5]arene (<strong>H<sub>1</sub></strong>), semicyanine (<strong>G<sub>1</sub></strong>) and BODIPY guests (<strong>G<sub>2</sub></strong>). The experimental results indicate that a secondary FRET occurs with high energy transfer efficiency and an enhanced antenna effect when a small amount of <strong>G<sub>2</sub></strong> is doped. This doping not only enhances the fluorescence quantum yield but also increases the Stokes shift to 195 nm in this type of supramolecular assembly. Subsequently, AuNPs exhibiting a localized surface plasmon resonance effect were introduced into supramolecular assemblies to further reduce toxicity, enhance sensitivity, and optimize selectivity of the sensor through host-guest interaction with the pillar[5]arene unit and <strong>G<sub>1</sub></strong>. Notably, the hybrid nanoprobe consisting of thiolated pillar[5]arene-embedded AuNPs (AuNPs@<strong>SH-P5</strong>), <strong>G<sub>1</sub></strong>, and <strong>G<sub>2</sub></strong> efficiently detected HSO<sub>3</sub><sup>−</sup>/Cys with good selectivity and a low detection limit in the nanomolar range, through the synergistic effect of metal-enhanced fluorescence and supramolecular assembly-induced emission enhancement.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"245 ","pages":"Article 113213"},"PeriodicalIF":4.2,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004467","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

Application of sustainably Synthesized nitrogen self-doped carbon dots based on camellia extract for sensitive detection of lamotrigine in water samples 基于山茶提取物的可持续合成氮自掺杂碳点用于水样中拉莫三嗪的灵敏检测

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2025-09-03 DOI: 10.1016/j.dyepig.2025.113212

Hao Xue , Tianyi Ma , Luoyilan Zhang , Jing Xiang , Ke Cheng , Hong Zheng , Yin Yuan

{"title":"Application of sustainably Synthesized nitrogen self-doped carbon dots based on camellia extract for sensitive detection of lamotrigine in water samples","authors":"Hao Xue , Tianyi Ma , Luoyilan Zhang , Jing Xiang , Ke Cheng , Hong Zheng , Yin Yuan","doi":"10.1016/j.dyepig.2025.113212","DOIUrl":"10.1016/j.dyepig.2025.113212","url":null,"abstract":"<div><div>In bioanalysis and environmental monitoring, developing sustainable carbon dot nanomaterials from waste biomass as probes holds significant scientific value for advancing sustainable chemical sensing technology. The method not only enables the efficient transformation of waste biomass into functional nanomaterials but also presents a sustainable paradigm for biomass resource utilization. A one-step hydrothermal synthesis protocol was utilized for the fabrication of nitrogen self-doped carbon dots (NCDs), wherein camellia flowers functioned as dual sources of carbon and nitrogen. Furthermore, we constructed a novel chemiluminescence system (Na<sub>2</sub>SO<sub>3</sub>–CeS<sub>2</sub>O<sub>8</sub>-NCDs-H<sub>2</sub>SO<sub>4</sub>) and applied it to the highly sensitive detection of the antiepileptic drug lamotrigine (LTG) in water. The chemiluminescence signal of LTG exhibited a concentration-dependent inhibitory effect within the system, featuring a linear dynamic range of 8 × 10<sup>−5</sup> M to 1 × 10<sup>−3</sup> M and a detection limit of 2.37 μM. The recovery rates of the target analyte in spiked real water samples ranged from 98.63% to 104.49%, validating the applicability and reliability of this method for detecting LTG in complex environmental matrices. The research offered an innovative approach to the resource utilization of waste biomass and the green analysis of trace drug residues in water samples.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"245 ","pages":"Article 113212"},"PeriodicalIF":4.2,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046020","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

Mechanochromic Emission in Ternary CB[8]TPA2 Array. Insights into the Role of Host-Interaction Nature 三元CB[8]TPA2阵列的机械致色发射。对宿主相互作用性质的认识

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2025-09-03 DOI: 10.1016/j.dyepig.2025.113214

Raúl Guajardo-Maturana , Macarena Rojas-Poblete , Plinio Cantero-Lopez , Alvaro Muñoz-Castro

{"title":"Mechanochromic Emission in Ternary CB[8]TPA2 Array. Insights into the Role of Host-Interaction Nature","authors":"Raúl Guajardo-Maturana , Macarena Rojas-Poblete , Plinio Cantero-Lopez , Alvaro Muñoz-Castro","doi":"10.1016/j.dyepig.2025.113214","DOIUrl":"10.1016/j.dyepig.2025.113214","url":null,"abstract":"<div><div>The formation of host-guest aggregates favors the enhancement of molecular properties owing to the molecular confinement into a suitable cavity. This report provides an overview of the binding and emission features in ternary host-guest systems, with a particular focus on cucurbituril (CB[8]) systems. Our results reveal the crucial role of host-guest interactions in modulating mechano-chromic luminescent properties through various organic compounds, such as TPA derivatives. Advanced computational methodologies, including density functional theory (DFT), time-dependent DFT (TDDFT), and Energy Decomposition Analysis based on Natural Orbitals for Chemical Valence (EDA-NOCV), are employed to analyze orbital density of transitions, energy interactions, charge transfer mechanisms, and the stability of these complexes. Key findings highlight the contributions of electrostatic, orbital, and dispersion interactions, which enhance our understanding of photophysical behavior. In this sense, the host-guest interaction is predominantly from the Δ<em>E</em><sub>elstat</sub> term, which retains 54% to 57% in attractive forces, and the Δ<em>E</em><sub>disp</sub> term goes from 24% to 27%. Additionally, the CB-encapsulation demonstrates its potential application in innovative materials and MCL response, highlighting the possible significance of molecular design. This report aims to provide a comprehensive understanding of the intricate dynamics within these systems.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"245 ","pages":"Article 113214"},"PeriodicalIF":4.2,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007774","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

Squaraine dye: Promising strategies to boost power conversion efficiencies of OPV cells Squaraine染料：提高OPV电池功率转换效率的有前途的策略

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2025-09-02 DOI: 10.1016/j.dyepig.2025.113207

Madiha Irfan , Aamer Saeed , Kevin D. Belfield , Fehmeeda Bibi , Usama Khalid , Muhammad Zikar e Islam , Zeeshan Danish , Khadija Khalid

{"title":"Squaraine dye: Promising strategies to boost power conversion efficiencies of OPV cells","authors":"Madiha Irfan , Aamer Saeed , Kevin D. Belfield , Fehmeeda Bibi , Usama Khalid , Muhammad Zikar e Islam , Zeeshan Danish , Khadija Khalid","doi":"10.1016/j.dyepig.2025.113207","DOIUrl":"10.1016/j.dyepig.2025.113207","url":null,"abstract":"<div><div>Organic photovoltaic cells (OPVs) are one of the most promising technologies in the field of renewable energy. Bulk heterojunction (BHJ), dye-sensitized solar cells (DSSCs) and Perovskite solar cells (PKSCs) are recent OPVs that have attracted a lot of attention in the sustainable energy field. Squaraine is an important class of organic dyes with efficient absorption and stability in the visible and near infrared regions. Because of this ability, squaraine is a vital candidate for its photovoltaic applications in organic solar cells (OSCs). Both symmetrical and unsymmetrical squaraine dyes (SQ & USQ) could be used as a donor or acceptor unit in different layers of these solar cells as a light absorption moiety. In this article, we've thoroughly discussed the recent advances of a squaraine dye in BHJ solar cells, ternary organic solar cells (TOSCs), quaternary organic solar cells (QOSCs), tandem organic solar cells (TDOSCs), DSSCs and PKSCs. We've mainly focused on the power conversion efficiency (PCE) of these devices that are greatly affected by varying the skeleton of squaraine such as side chain, aryl groups, end-cappers, anchoring groups and phenylene linkers along with other processing conditions. These factors improve the photovoltaic properties of organic solar cells such as open-circuit voltage (V<sub>oc</sub>), short circuit current (J<sub>sc</sub>), fill factor (FF), charge carriers' mobility and light harvesting capability, ultimately boost up the PCE. In this review, we've elaborated all the factors that will be helpful for a researcher community to construct an efficient, low-cost, eco-friendly and reliable OPVs.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"245 ","pages":"Article 113207"},"PeriodicalIF":4.2,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145019868","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

Near-infrared fluorescent probe based on aggregation-induced emission for in vivo viscosity imaging 基于聚集诱导发射的近红外荧光探针用于体内粘度成像

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2025-09-02 DOI: 10.1016/j.dyepig.2025.113201

Guo-Bin Wang , Shu-Long He , Xue-li Cheng , Wei Pan , Jie-Song Yang , Shi-Li Shen , Xian-Hong Pang , Yan Zhu

{"title":"Near-infrared fluorescent probe based on aggregation-induced emission for in vivo viscosity imaging","authors":"Guo-Bin Wang , Shu-Long He , Xue-li Cheng , Wei Pan , Jie-Song Yang , Shi-Li Shen , Xian-Hong Pang , Yan Zhu","doi":"10.1016/j.dyepig.2025.113201","DOIUrl":"10.1016/j.dyepig.2025.113201","url":null,"abstract":"<div><div>The functions of mitochondria, the powerhouses of the cell, depend intimately on the intracellular and extracellular physicochemical environment. Viscosity plays a critical regulatory role in mitochondrial activities across multiple physiological processes. Abnormal viscosity not only disrupts mitochondrial function, leading to dysregulation of cellular energy metabolism homeostasis, but is also closely associated with various pathological mechanisms. Herein, we innovatively designed and synthesized a near-infrared fluorescent probe, <strong>WG-1</strong>, based on a triphenylamine scaffold. Fluorescence spectral characterization revealed that <strong>WG-1</strong> exhibits exceptional viscosity-responsive properties, a strong logarithmic linear correlation (R<sub>1</sub><sup>2</sup> = 0.99, R<sub>2</sub><sup>2</sup> = 0.996), and prominent aggregation-induced emission characteristics. Notably, the probe exhibited outstanding selectivity and anti-interference capability, with fluorescence signals remaining unaffected by changes in pH and polarity as well as the presence of diverse ions. Cellular experiments demonstrated that in addition to possessing excellent biocompatibility, <strong>WG-1</strong> achieved precise mitochondrial localization and dynamic tracking of fluctuations in viscosity. In vivo experiments further verified that <strong>WG-1</strong> enables the real-time monitoring of mitochondrial viscosity in zebrafish and detects notable viscosity-responsive signals in a murine liver disease model. Collectively, <strong>WG-1</strong> provides a robust tool for in-depth exploration of disease mechanisms linked to mitochondrial viscosity dysregulation.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"245 ","pages":"Article 113201"},"PeriodicalIF":4.2,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145010575","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

Spectral complementarity of phenothiazine-based dyes with N719 and its application in double-sided Pt electrode tandem DSSCs 吩噻嗪基染料与N719的光谱互补及其在双面Pt电极串联DSSCs中的应用

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2025-09-02 DOI: 10.1016/j.dyepig.2025.113204

Qi Li , Weihao Li , Mengdan Yang , Shucheng Huang , Xiangfei Kong , Wenjun Wu , Haijun Tan

{"title":"Spectral complementarity of phenothiazine-based dyes with N719 and its application in double-sided Pt electrode tandem DSSCs","authors":"Qi Li , Weihao Li , Mengdan Yang , Shucheng Huang , Xiangfei Kong , Wenjun Wu , Haijun Tan","doi":"10.1016/j.dyepig.2025.113204","DOIUrl":"10.1016/j.dyepig.2025.113204","url":null,"abstract":"<div><div>The classic N719 dye in dye-sensitized solar cells (DSSCs) exhibits insufficient spectral response in the 300–500 nm range. To address this limitation, a phenothiazine-based dye, <strong>PTZ-7</strong>, was designed by introducing an ethynyl group into <strong>PTZ-6</strong> (a previously reported dye with partial spectral complementarity to N719 but significant overlap). Theoretical calculations revealed that this structural modification induced a redshift in the absorption spectrum, and experimental characterization confirmed that its absorption band extended to the 410–492 nm region, achieving improved spectral complementarity with N719. A tandem device architecture integrating N719 (top layer) and <strong>PTZ-7</strong> (bottom layer) with dual-sided Pt counter electrodes was fabricated, demonstrating synergistic spectral enhancement. The optimized device exhibited a short-circuit current density (<em>J</em><sub><em>sc</em></sub>) of 20.09 mA cm<sup>−2</sup> and a power conversion efficiency (PCE) of 11.08 %, surpassing single-dye systems based solely on <strong>PTZ-7</strong> (<em>J</em><sub><em>sc</em></sub> = 11.86 mA cm<sup>−2</sup>, PCE = 6.47 %) or N719 (<em>J</em><sub><em>sc</em></sub> = 14.88 mA cm<sup>−2</sup>, PCE = 8.52 %). This study demonstrates the effectiveness of a molecular engineering guided strategy combining spectral matching and tandem integration to overcome the performance limitations of DSSCs.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"245 ","pages":"Article 113204"},"PeriodicalIF":4.2,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144997295","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

Synthesis of donor-acceptor conjugated polymers containing indaceno[1,2-b:5,6-b’]dithiophene and benzothiadiazo-[3,4-g]-quinoxaline for electrochromism 含吲哚[1,2-b:5,6-b ']二噻吩和苯并噻唑-[3,4-g]-喹啉的电致变色给受体共轭聚合物的合成

IF 4.2 3区工程技术

Dyes and Pigments Pub Date : 2025-09-02 DOI: 10.1016/j.dyepig.2025.113210

Guoqiang Kuang , Yabing Wang , Mengxiong Zhu , Hongbin Yin , Yijie Tao , Yafei Guo , Shiguo Zhang

{"title":"Synthesis of donor-acceptor conjugated polymers containing indaceno[1,2-b:5,6-b’]dithiophene and benzothiadiazo-[3,4-g]-quinoxaline for electrochromism","authors":"Guoqiang Kuang , Yabing Wang , Mengxiong Zhu , Hongbin Yin , Yijie Tao , Yafei Guo , Shiguo Zhang","doi":"10.1016/j.dyepig.2025.113210","DOIUrl":"10.1016/j.dyepig.2025.113210","url":null,"abstract":"<div><div>The synthesis of high-performance electrochromic polymers remains a key research highlight in the field of electrochromism. Herein, a series of donor-acceptor type conjugated polymers are synthesized based on 4,9-Dihydro-s-indaceno[1,2-b:5,6-b]dithiophene (IDT), 3,4-ethylenedioxythiophene (EDOT), benzo[c][1,2,5]thiadiazole (BTD) and benzothiadiazo-[3,4-g]-quinoxaline (TQX) units by Stille coupling polymerization. By fine-tuning the ratios between the monomers, the synthesized copolymers exhibited diverse color options and tunable properties, by applying an extra potential, polymer films transit from yellow, pink, green, and dark brown to highly transmissive state, along with outstanding electrochromic properties in both the NIR region and the visible region, such as high optical contrast, rapid switching response, and excellent stability. As a result, the derived electrochromic devices demonstrate an optical contrast exceeding 40 % and retained over 74 % of their optical contrast after 1000 switching cycles. These findings collectively demonstrate that these copolymers hold significant potential for applications in smart windows and adaptive camouflage as a versatile color palette.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"245 ","pages":"Article 113210"},"PeriodicalIF":4.2,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144988970","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