Dyes and Pigments最新文献_第3页

Systematic study of phenyl substitutions in a terpyridine Zn2+ complex for pyrophosphate sensing in water 三吡啶Zn2+配合物中苯基取代对水中焦磷酸盐传感的系统研究

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-05-14 DOI: 10.1016/j.dyepig.2025.112874

Zhongzheng Yu, Fang Wang, Sheng Lu, Xiaoqiang Chen

{"title":"Systematic study of phenyl substitutions in a terpyridine Zn2+ complex for pyrophosphate sensing in water","authors":"Zhongzheng Yu, Fang Wang, Sheng Lu, Xiaoqiang Chen","doi":"10.1016/j.dyepig.2025.112874","DOIUrl":"10.1016/j.dyepig.2025.112874","url":null,"abstract":"<div><div>Terpyridine Zn<sup>2+</sup> complex-based pyrophosphate (PPi) fluorescent probes have shown promise, however, a systematic study on the optimal structure of terpyridine for PPi sensing is still lacking. In this study a series of six-coordinated terpyridine Zn<sup>2+</sup> complexes were designed and synthesized. The impact of the position and the number of electron-donating groups on the aromatic ring of terpyridine, as well as changes in hydrophobicity, on the ability to selectively recognize PPi was explored. Six terpyridine Zn<sup>2+</sup> complexes with <em>meta-</em>methoxy groups on the phenyl ring can detect PPi in aqueous solution through an AIE-mediated mechanism, exhibiting excellent selectivity for PPi over other nucleoside triphosphates (NTPs). More importantly, the introduction of an additional propoxy group at the <em>para</em>-position enhances the anti-interference capability and fluorescence response speed of the terpyridine Zn<sup>2+</sup> complex towards PPi. Furthermore, four selected probes have also demonstrated the capability to monitor inorganic pyrophosphatase (IPP)-mediated PPi hydrolysis.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"241 ","pages":"Article 112874"},"PeriodicalIF":4.1,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072767","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

Versatile carbazole and dibenzofuran-based materials for OLEDs: Emitters and exciplex-forming systems 用于oled的多功能咔唑和二苯并呋喃基材料：发射体和异构体形成系统

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-05-14 DOI: 10.1016/j.dyepig.2025.112897

Raminta Beresneviciute , Dovydas Blazevicius , Saulius Grigalevicius , Zih-Ru He , Fong-Yu Yang , Chih-Hao Chang

{"title":"Versatile carbazole and dibenzofuran-based materials for OLEDs: Emitters and exciplex-forming systems","authors":"Raminta Beresneviciute , Dovydas Blazevicius , Saulius Grigalevicius , Zih-Ru He , Fong-Yu Yang , Chih-Hao Chang","doi":"10.1016/j.dyepig.2025.112897","DOIUrl":"10.1016/j.dyepig.2025.112897","url":null,"abstract":"<div><div>Organic light-emitting diodes (OLEDs) have attracted significant attention in recent decades due to their exceptional advantages. While they are already integrated into numerous commercial products, ongoing challenges related to stability and efficiency have motivated us to develop two new multifunctional compounds, <strong>BeCzMFI</strong> and <strong>BbCzMFI</strong>. These compounds are based on a methoxydibenzofuran-carbazole electron-donating core with additional aliphatic chains to enhance film-forming properties. They exhibit excellent thermal and morphological stability, along with favorable photophysical properties, making them promising candidates for OLED applications. These materials can function as both emitters and host materials, either as standalone hosts or as components of exciplex host systems when combined with an acceptor material (CN-T2T). We investigated their performance in blue and red OLEDs, finding that exciplex formation enhances carrier balance and energy transfer efficiency. The blue devices using <strong>BeCzMFI</strong> and <strong>BbCzMFI</strong> as emitters exhibited efficient exciton harvesting and carrier balance, leading to high luminance with an external quantum efficiency (EQE) of 10.4 %. Meanwhile, red phosphorescent OLEDs incorporating these materials as exciplex hosts achieved a maximum luminance exceeding 30,000 cd/m<sup>2</sup> and an EQE of 13.6 %. These results highlight the potential of these multi-function materials in advancing OLED performance by enabling both conventional and exciplex-based emission mechanisms.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"241 ","pages":"Article 112897"},"PeriodicalIF":4.1,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068693","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

Photo-stretching modulation to construct multiple activable photo-functional dyes 光拉伸调制构建多种可激活的光功能染料

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-05-14 DOI: 10.1016/j.dyepig.2025.112890

Xiaoni Zhao , Tao Liu , Xuwei Han , Fangjun Huo , Yongkang Yue , Caixia Yin

引用次数: 0

D-A type photovoltaic polymer donor based on acenaphtho[1,2-b]quinoxaline imide (AQI) 基于苊[1,2-b]喹诺啉亚胺（AQI）的D-A型光伏聚合物供体

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-05-14 DOI: 10.1016/j.dyepig.2025.112880

Yunfeng Xu , Xiangyu Li , Mengwei Ji , Hongxing Liu , Mengzhen Du , Zongtao Wang , Jimin Du , Peiqing Cong , Qing Guo , Erjun Zhou

{"title":"D-A type photovoltaic polymer donor based on acenaphtho[1,2-b]quinoxaline imide (AQI)","authors":"Yunfeng Xu , Xiangyu Li , Mengwei Ji , Hongxing Liu , Mengzhen Du , Zongtao Wang , Jimin Du , Peiqing Cong , Qing Guo , Erjun Zhou","doi":"10.1016/j.dyepig.2025.112880","DOIUrl":"10.1016/j.dyepig.2025.112880","url":null,"abstract":"<div><div>D-A type polymer donors are considered to play a significant role in realizing high-performance organic solar cells (OSCs) because of their optoelectronic properties can be fine-tuned via molecular engineering. Devolping novel D or A units and investigating the structure-properties relationship are essential for the further progress of D-A type polymer donors. Recently, our groups exploit a large conjugated electron-accepting block, acenaphtho[1,2-b]quinoxaline imide (AQI), to construct shamrock-shaped non-fullerene acceptors (NFAs) and achieve an amazing power conversion efficiency (PCE). However, AQI as the A building block has not been well-studied in polymer donors. Consequently, in this paper, by incorperating AQI with benzodithiophene containing chlorinated thiophene side chain (BDT-T-Cl) unit, we reported a D-A type polymer donor and named as PBA4. PBA4 exhibits good planarity and a medium optical bandgap, and the corresponding blend film of PBA4:Y6 displays an ordered molecular stacking and good crystallinity as well as balanced charge transport. Finally, the device based on PBA4: Y6 realized a moderate PCE of 10.2 %, probably due to the overly large side chains on both BDT and AQI units. The results indicate that AQI can be utilized to construct D-A type photovoltaic polymer donors, and the photovoltaic performance of AQI-based photovoltaic polymers could be improved by further molecular engineering, especially the balance of solubility and crystallinity.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"241 ","pages":"Article 112880"},"PeriodicalIF":4.1,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072766","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

Stable low temperature reversible thermochromic indicators for vaccine storage and transportation 用于疫苗储存和运输的稳定的低温可逆热致变色指示剂

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-05-12 DOI: 10.1016/j.dyepig.2025.112894

Qing Shi, Mingrui Li, Kun Gong, Zhen Zhao, Dongzhi Liu, Xueqin Zhou

{"title":"Stable low temperature reversible thermochromic indicators for vaccine storage and transportation","authors":"Qing Shi, Mingrui Li, Kun Gong, Zhen Zhao, Dongzhi Liu, Xueqin Zhou","doi":"10.1016/j.dyepig.2025.112894","DOIUrl":"10.1016/j.dyepig.2025.112894","url":null,"abstract":"<div><div>The thermal properties and stability are key to low temperature reversible thermochromic materials for their application in monitoring the temperatures of vaccine during storage and transportation. In this study, stable low temperature reversible thermochromic indicators (LT-RTIs) suitable for the storage and transportation of temperature-sensitive products were prepared by regulation of the intermolecular interactions in the ternary thermochromic materials (TTMs) via the rational design of components. The thermal stability of low temperature phase transition solvents (PTSs) was correlated to their intermolecular van der Waals force and hydrogen bond interaction to address the volatile issue. The interactions of the PTSs with thermo-sensitive Red and different color developers were analyzed and related to the thermochromic properties of TTMs. It was revealed that thermal-stable PTS together with a strong interaction between the color developer and color former would significantly enhance the stability of TTMs. LT-RTIs with outstanding thermal, thermochromic cycling and low-temperature storage stability displayed two discoloration temperatures at 6 ∼ 8 °C and −23 ∼ −18 °C, enabling temperature indication of OPV and IPV vaccines during storage and transportation.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"241 ","pages":"Article 112894"},"PeriodicalIF":4.1,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071442","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

High luminance and efficient non-doped blue OLED with negligible efficiency roll-off 高亮度和高效率的无掺杂蓝色OLED，效率滚降可忽略不计

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-05-12 DOI: 10.1016/j.dyepig.2025.112895

Mizhen Sun, Chenglin Ma, Yannan Zhou, Lizhi Chu, Li Zhang, Jingru Song, Qikun Sun, Wenjun Yang, Shanfeng Xue

{"title":"High luminance and efficient non-doped blue OLED with negligible efficiency roll-off","authors":"Mizhen Sun, Chenglin Ma, Yannan Zhou, Lizhi Chu, Li Zhang, Jingru Song, Qikun Sun, Wenjun Yang, Shanfeng Xue","doi":"10.1016/j.dyepig.2025.112895","DOIUrl":"10.1016/j.dyepig.2025.112895","url":null,"abstract":"<div><div>Efficient non-doped blue organic light-emitting diodes (OLEDs) exhibit admirable merits of simple device structure and low power consumption. However, efficient and stable blue devices are still rare. Herein, a novel blue molecule (PPyIAC) was designed by adding 9,10-diphenyl-9<em>H</em>-pyreno[4,5-<em>d</em>]imidazole (PPyI) to benzonitrile substituted anthracene. Single-crystal analysis displayed that it had formed highly ordered arrangement and abundant intra/intermolecular forces as well as weak π-π stacking in solid state, which not only accelerated and balanced the carrier transport, but also reduced excitons quenching caused by serious molecular aggregation, improving the stability of non-doped device. Furthermore, theoretical investigations have shown that the high-energy “hot exciton” channels avoided the accumulation of T<sub>1</sub> excitons and reduced efficiency roll-off. Consequently, the non-doped device of PPyIAC exhibits a high luminance of 46778 cd m<sup>−2</sup>, and achieved a maximum external quantum efficiency (EQE<sub>max</sub>) up to 9.2 % with a negligible efficiency roll-off (2 %) @ 10 000 cd m<sup>−2</sup>, resulting in superior performance in organic light-emitting diodes.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"241 ","pages":"Article 112895"},"PeriodicalIF":4.1,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068692","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 dual-responsive fluorescent probe based on Zn(II)-MOF and its mixed-matrix membranes for efficient detection of 3-nitrotyrosine biomarker and dimetridazole in actual samples 基于Zn(II)-MOF及其混合基质膜的双响应荧光探针用于实际样品中3-硝基酪氨酸生物标志物和二甲硝唑的高效检测

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-05-10 DOI: 10.1016/j.dyepig.2025.112893

Yi-Xuan Shi , Qing-Yun Yang , Yang Shi , Jia Li , Le-Kai Li , Jing Ru , Hai-Ying Wang

{"title":"A dual-responsive fluorescent probe based on Zn(II)-MOF and its mixed-matrix membranes for efficient detection of 3-nitrotyrosine biomarker and dimetridazole in actual samples","authors":"Yi-Xuan Shi , Qing-Yun Yang , Yang Shi , Jia Li , Le-Kai Li , Jing Ru , Hai-Ying Wang","doi":"10.1016/j.dyepig.2025.112893","DOIUrl":"10.1016/j.dyepig.2025.112893","url":null,"abstract":"<div><div>With ever-increasing concern about human health, the detection of biomarkers and food security have become a crucial issue in recent years. In this work, we prepared a water-stable and thermal stable Zn(II) metal-organic framework {[Zn(BBIP)(H<sub>4</sub>BDPT)<sub>1/2</sub>]·DMF}<sub>n</sub> (<strong>BDPT-Zn2)</strong> by the amide-modified flexible-aromatic linker bis(3,5-dicarboxyphenyl)terephthalamide (H<sub>4</sub>BDPT) and the N-containing ligand 3,5-bis(1H-benzo[<em>d</em>]imidazole-1-yl)pyridine (BBIP). Structure analysis revealed that <strong>BDPT-Zn2</strong> exhibited a two-dimensional (2D) network structure and crystallized in the triclinic system with space group <em>P</em>—1. <strong>BDPT-Zn2</strong> demonstrated dual-responsive sensing capability toward 3-nitrotyrosine (3-NT) biomarker and dimetridazole (DTZ) through fluorescence quenching, with low detection limits of 0.0246 μM and 0.00257 μM, respectively. Then, the sensor had potential practical application in real samples, with good recovery ranging from 96.10 % to 105.35 %. Furthermore, the fluorescent mixed matrix membranes (BDPT-Zn2@MMMs) were prepared by dispersing the particles of <strong>BDPT-Zn2</strong> within the matrix of polymethyl methacrylate, and showed a promising fluorescent probe for visual, real-time and recyclable detection of 3-NT and DTZ in real samples.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"241 ","pages":"Article 112893"},"PeriodicalIF":4.1,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143935588","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

Photoluminescent iridium(III) complexes with mono-pyridinium substituted phenylpyridine ligands: synthesis, electrochemical and photophysical properties, and electroluminochromic performance 含单吡啶取代苯基吡啶配体的光致发光铱（III）配合物：合成、电化学和光物理性质及电致发光性能

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-05-09 DOI: 10.1016/j.dyepig.2025.112891

Xuecheng Wang , Shuzi Wu , Yongheng Wen , Feiyang Li , Kenneth Yin Zhang , Shujuan Liu , Qiang Zhao

{"title":"Photoluminescent iridium(III) complexes with mono-pyridinium substituted phenylpyridine ligands: synthesis, electrochemical and photophysical properties, and electroluminochromic performance","authors":"Xuecheng Wang , Shuzi Wu , Yongheng Wen , Feiyang Li , Kenneth Yin Zhang , Shujuan Liu , Qiang Zhao","doi":"10.1016/j.dyepig.2025.112891","DOIUrl":"10.1016/j.dyepig.2025.112891","url":null,"abstract":"<div><div>Electroluminochromic (ELC) materials, which enable photoluminescence modulation through electrical stimuli, hold significant promise for advanced optoelectronic applications. In this study, two novel iridium (III) complexes featuring mono-pyridinium modified cyclometalated ligands were synthesized and characterized. Their electrochemical behavior and photophysical properties were investigated. Both the complexes showed reversible pyridinium-based reduction couples at ca. −1.0 V vs SCE, and exhibited intense orange-red photoluminescence upon photoexcitation. Both the complexes exhibit ELC properties, with their emission wavelengths modulated by electrical stimuli. Chemical and electrochemical reduction revealed a notable blue shift of up to 66 nm accompanied by substantial variations in emission lifetime. The observed reversible emission shifts were attributed to redox-induced geometric and electronic structural modifications, which altered the nature of the emissive states. A proof-of-concept sandwich-type ELC device demonstrated voltage-driven photoluminescence switching between red (627 nm) and yellow (579 nm) emissions, achieving >90 % response efficiency within 17 s over 20 operational cycles with excellent reversibility. To showcase practical potential, a screen-printed dual-color information recording device was fabricated, exhibiting reversible red-to-yellow color transitions under electrical control. These findings underscore the viability of the developed iridium complexes for dynamic information display systems and rewritable optical recording technologies.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"241 ","pages":"Article 112891"},"PeriodicalIF":4.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143935589","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 ether-bonded perylene diimide oligomers without noble-metal catalysts for organic solar cells 无贵金属催化剂合成有机太阳能电池用醚键苝二亚胺低聚物

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-05-09 DOI: 10.1016/j.dyepig.2025.112892

Zhu Wang , Yinuo Wang , Fengbo Sun , Yanjie Sun , Xiang Gao , Zhitian Liu

{"title":"Synthesis of ether-bonded perylene diimide oligomers without noble-metal catalysts for organic solar cells","authors":"Zhu Wang , Yinuo Wang , Fengbo Sun , Yanjie Sun , Xiang Gao , Zhitian Liu","doi":"10.1016/j.dyepig.2025.112892","DOIUrl":"10.1016/j.dyepig.2025.112892","url":null,"abstract":"<div><div>Here, a noble-metal-free synthetic strategy is reported for constructing three perylene diimide (PDI)-based non-fullerene acceptors (<strong>NAJ-3</strong>, <strong>NAJ-2-m</strong>, and <strong>NAJ-2-p</strong>), featuring PDI units linked to one benzene core via ether bonds. Among them, <strong>NAJ-3</strong>, with a propeller-like conformation, exhibited the best photovoltaic performance. The unique three-dimensional architecture of <strong>NAJ-3</strong> enables effective suppression of molecular aggregation while maintaining efficient π-π stacking, which facilitates the formation of nano-sized interpenetrating networks and charge transport. <strong>NAJ-3</strong> exhibits the best photovoltaic performance because of the intensified absorption, suitable energy levels, and balanced carrier transport. This work provides a cost-effective synthetic route without noble-metal catalysts for the scalable production of PDI-based NFAs. This is of great significance for the green synthesis of organic photovoltaic materials, yet it has not received sufficient attention.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"241 ","pages":"Article 112892"},"PeriodicalIF":4.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143935583","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

Indenocarbazole and benzofurocarbazole-based bipolar host materials for high-performance red and green Phosphorescent Organic Light-Emitting Diodes 用于高性能红色和绿色磷光有机发光二极管的吲哚咔唑和苯并呋喃咔唑基双极性主体材料

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-05-08 DOI: 10.1016/j.dyepig.2025.112882

Minzhen Li , Yong Yang , Sisi Lan , Yingyi Wei , Zhi Zhang , Haitao Zhou , Zhiyun Zhang , Jinhai Huang , Zhenyuan Xia

{"title":"Indenocarbazole and benzofurocarbazole-based bipolar host materials for high-performance red and green Phosphorescent Organic Light-Emitting Diodes","authors":"Minzhen Li , Yong Yang , Sisi Lan , Yingyi Wei , Zhi Zhang , Haitao Zhou , Zhiyun Zhang , Jinhai Huang , Zhenyuan Xia","doi":"10.1016/j.dyepig.2025.112882","DOIUrl":"10.1016/j.dyepig.2025.112882","url":null,"abstract":"<div><div>In this research, two innovative bipolar host materials, <strong>DMID-BP and BFCz-</strong><strong>BP</strong>, were strategically designed and synthesized, marking the first application of these materials in red and green phosphorescent organic light-emitting diodes. Both compounds exhibit remarkable bipolar carrier transport properties, well aligned HOMO and LUMO levels, and exceptional thermal stability, with T<sub>g</sub> value of 185 °C and 171 °C, respectively. The red and green Phosphorescent Organic Light-Emitting Diodes (PhOLEDs) fabricated with these two materials demonstrate high light-emitting efficiency along with low efficiency roll-off. Notably, R1 device, utilizing <strong>DMID</strong><strong>-BP</strong> as the host material, achieves an impressive maximum external quantum efficiency (EQE<sub>max</sub>) of 23.68 %, significantly surpassing most conventional host materials reported to date. Additionally, the R2 device, based on <strong>BFCz</strong><strong>-BP</strong>, also attains a high EQE<sub>max</sub> of 20.26 %. Consequently, all the results underscore the significant potential of these two host materials for applications in both red and green PhOLEDs.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"241 ","pages":"Article 112882"},"PeriodicalIF":4.1,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143935584","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