Journal of Materials Chemistry C最新文献

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Correction: How to tune luminescent Cu(I) complexes with strong donor carbenes towards TADF? 更正:如何调整具有强供体碳烯的发光 Cu(I)配合物的 TADF?
IF 7.393 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2024-07-10 DOI: 10.1039/d4tc90113d
Jasper Guhl, Dragana Sretenović, Philipp Schmeinck, Suren Felekyan, Ralf Kühnemuth, Christian Ganter, Claus A. M. Seidel, Christel M. Marian, Markus Suta
{"title":"Correction: How to tune luminescent Cu(I) complexes with strong donor carbenes towards TADF?","authors":"Jasper Guhl, Dragana Sretenović, Philipp Schmeinck, Suren Felekyan, Ralf Kühnemuth, Christian Ganter, Claus A. M. Seidel, Christel M. Marian, Markus Suta","doi":"10.1039/d4tc90113d","DOIUrl":"https://doi.org/10.1039/d4tc90113d","url":null,"abstract":"Correction for ‘How to tune luminescent Cu(<small>I</small>) complexes with strong donor carbenes towards TADF?’ by Jasper Guhl <em>et al.</em>, <em>J. Mater. Chem. C</em>, 2024, https://doi.org/10.1039/D4TC01487A.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":null,"pages":null},"PeriodicalIF":7.393,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141568623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Photo-responsive Diels–Alder based azobenzene-functionalized main-chain liquid crystal networks 基于偶氮苯功能化主链液晶网络的光响应式 Diels-Alder
IF 7.393 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2024-07-10 DOI: 10.1039/d4tc01281j
Minwook Park, Jesus Guillen Campos, Friedrich Stricker, Javier Read de Alaniz
{"title":"Photo-responsive Diels–Alder based azobenzene-functionalized main-chain liquid crystal networks","authors":"Minwook Park, Jesus Guillen Campos, Friedrich Stricker, Javier Read de Alaniz","doi":"10.1039/d4tc01281j","DOIUrl":"https://doi.org/10.1039/d4tc01281j","url":null,"abstract":"Light-responsive liquid crystal elastomer networks (LCNs) have received significant interest due to their potential application in soft robotics and shape-morphing devices. Here, we present a systematic examination of light-responsive LCNs prepared using a catalyst-free Diels–Alder cycloaddition and a new azobenzene functionalized monomer for main-chain incorporation. The networks have robust mechanical stiffness that can be reversibly modulated by 1 GPa by turning the UV light on and off. This study highlights the contribution of photothermal softening to reversibly control rheological properties of the newly developed LCNs and demonstrates the ability to tune the modulus on demand. We believe this work will guide future developments of light-responsive LCNs based on the newly developed Diels–Alder cycloaddition.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":null,"pages":null},"PeriodicalIF":7.393,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141568624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unveiling the significance of adduct formation between thiocarbonyl Lewis donors and diiodine for the structural organization of rhodanine-based small molecule semiconductors 揭示硫代羰基路易斯供体与二碘之间形成的加合物对基于铑的小分子半导体结构组织的重要意义
IF 7.393 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2024-07-08 DOI: 10.1039/d4tc01791a
Anna Laura Sanna, Simone Acca, Enrico Podda, Antonello Mascia, Anna Pintus, M. Carla Aragoni, Vito Lippolis, Carlo Ricci, Piero Cosseddu, Massimiliano Arca, Giuseppe Sforazzini
{"title":"Unveiling the significance of adduct formation between thiocarbonyl Lewis donors and diiodine for the structural organization of rhodanine-based small molecule semiconductors","authors":"Anna Laura Sanna, Simone Acca, Enrico Podda, Antonello Mascia, Anna Pintus, M. Carla Aragoni, Vito Lippolis, Carlo Ricci, Piero Cosseddu, Massimiliano Arca, Giuseppe Sforazzini","doi":"10.1039/d4tc01791a","DOIUrl":"https://doi.org/10.1039/d4tc01791a","url":null,"abstract":"Rhodanine vinyl bithiophene (<strong>BTR</strong>) was synthesized and characterized both spectroscopically and structurally. The reaction of <strong>BTR</strong> with molecular iodine led to the 1 : 1 “spoke” adduct <strong>BTR·I<small><sub>2</sub></small></strong>, formed by interaction of the rhodanine thiocarbonyl group with a diiodine (I<small><sub>2</sub></small>) molecule. The elongation of the I–I bond in the adduct with respect to solid-state I<small><sub>2</sub></small> and the Raman response in the low-energy region (<em>ν</em> = 150 cm<small><sup>−1</sup></small>) clearly indicate <strong>BTR·I<small><sub>2</sub></small></strong> to be a weak CT adduct. Hybrid-DFT calculations showed that the adduct formation narrowed the HOMO–LUMO gap in <strong>BTR·I<small><sub>2</sub></small></strong> as compared to <strong>BTR</strong>, while the extended network of secondary interactions, including type-I halogen bonds (XB), results in the formation of an extended 3D network. As a consequence, the room temperature conductivity of <strong>BTR·I<small><sub>2</sub></small></strong> increased with respect to <strong>BTR</strong>, testifying for a more efficient molecular packing for charge percolation, with the formation of charge carriers in the crystal being facilitated by the presence of I<small><sub>2</sub></small>. It is worth noting that the single-crystal junction device operates at room temperature, in air, and no variation of conductivity over time was observed, indicating that no loss of diiodine occurred during measurements. These results clearly indicate the formation of thiocarbonyl–diiodine CT adducts and their potential as a solid additive for modulating the organization of small molecule semiconductors.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":null,"pages":null},"PeriodicalIF":7.393,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141568702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mechanical and sensing properties of three-dimensional, high-strength superflexible CMC/SA/MXene/CNT aerogels 三维高强度超柔性 CMC/SA/MXene/CNT 气凝胶的机械和传感特性
IF 7.393 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2024-07-08 DOI: 10.1039/d4tc01845a
Yanzhi Cai, Zixuan Yu, Laifei Cheng, Yibing Yuan, Shaoxiong Ren, Yalong Chai, Mingxing Chen, Xue Huang, Yanjun Li
{"title":"Mechanical and sensing properties of three-dimensional, high-strength superflexible CMC/SA/MXene/CNT aerogels","authors":"Yanzhi Cai, Zixuan Yu, Laifei Cheng, Yibing Yuan, Shaoxiong Ren, Yalong Chai, Mingxing Chen, Xue Huang, Yanjun Li","doi":"10.1039/d4tc01845a","DOIUrl":"https://doi.org/10.1039/d4tc01845a","url":null,"abstract":"Developing pressure sensors that combine high sensitivity, a wide response range, and a stable signal output is a great challenge. Due to the insufficiently robust structure of the sensor's skeleton, the sensor's skeleton will not only cause irreversible damage under repetitive pressure but will also produce uncontrollable deformation in the contact area between the skeletons, thus affecting the sensor's detection range, sensitivity, and the stability of the signal output. In this study, carboxymethyl cellulose/sodium alginate/MXene/carbon nanotube (CMC/SA/MXene/CNT) aerogels are prepared by directional freezing–freeze drying. The aerogel has a three-dimensional isotropic porous structure with two-dimensional faces as the supporting skeleton in the <em>X</em>, <em>Y</em>, and <em>Z</em> dimensions. Moreover, conductive CNTs and MXene are embedded in the skeleton to form a leaf-vein structure, which enhances the strength and toughness of the skeleton. The aerogel has a light weight, high conductivity, excellent mechanical properties (compressive strength of up to 148.78 kPa at 80% strain), and exceptional compression resilience. Assembling it into a piezoresistive sensor, it is characterized by its high sensitivity (GF = 7.6, <em>S</em> = 894.8 kPa<small><sup>−1</sup></small>), excellent fatigue resistance (retaining stability after at least 10 000 uninterrupted cycles), and rapid response time (0.16 s). The sensor is used for real-time monitoring of human movement and physiological activities and as a signal transmission device, indicating its broad application prospects in the field of flexible smart wearables and signal transmission devices.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":null,"pages":null},"PeriodicalIF":7.393,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141568625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ca18Na3Y(PO4)14:Eu2+,Mn2+: a novel single-phase dual-emission phosphor and its spectral modulation by Mg2+ for plant lighting and WLEDs Ca18Na3Y(PO4)14:Eu2+,Mn2+:用于植物照明和 WLED 的新型单相双发射荧光粉及其通过 Mg2+ 进行的光谱调制
IF 7.393 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2024-07-08 DOI: 10.1039/d4tc01527d
Zhibin Ye, Ziwang Zhang, Nan Yang, Zhuo Li, Weijie Huang, Jianxin Shi
{"title":"Ca18Na3Y(PO4)14:Eu2+,Mn2+: a novel single-phase dual-emission phosphor and its spectral modulation by Mg2+ for plant lighting and WLEDs","authors":"Zhibin Ye, Ziwang Zhang, Nan Yang, Zhuo Li, Weijie Huang, Jianxin Shi","doi":"10.1039/d4tc01527d","DOIUrl":"https://doi.org/10.1039/d4tc01527d","url":null,"abstract":"Artificial light sources have a significant impact on the cultivation of houseplants. In this work, a novel single-phase dual-emission phosphor, Ca<small><sub>18</sub></small>Na<small><sub>3</sub></small>Y(PO<small><sub>4</sub></small>)<small><sub>14</sub></small>:Eu<small><sup>2+</sup></small>,Mn<small><sup>2+</sup></small> (CNYPO:Eu<small><sup>2+</sup></small>,Mn<small><sup>2+</sup></small>), was synthesized and the emission spectra were modulated by co-doping of Mg<small><sup>2+</sup></small> to better match the absorption of plants. The occupancies of Eu<small><sup>2+</sup></small>, Mn<small><sup>2+</sup></small> and Mg<small><sup>2+</sup></small> are analyzed by using the data of bond length from XRD Rietveld refinements and the emission spectra. The energy transfer process from Eu<small><sup>2+</sup></small> to Mn<small><sup>2+</sup></small> is proved through the photoluminescence spectra and decay curves. Benefiting from the efficient energy transfer, two broadband emissions peaking at 500 and 650 nm can be achieved, which meets the requirements of plant growth, and the luminescence colour can be tuned from cyan to white and finally to red by changing the ratio of Mn<small><sup>2+</sup></small> to Eu<small><sup>2+</sup></small>. The internal quantum efficiency of CNYPO:0.18Eu<small><sup>2+</sup></small>,0.18Mn<small><sup>2+</sup></small> is 76.8% under 340 nm excitation. The introduction of Mg<small><sup>2+</sup></small> can regulate the occupation sites of Eu<small><sup>2+</sup></small> and the emission peak position, improve the responsiveness to the plant absorption spectra, and tune the luminescence colour to white. Finally, a white light-emitting diode (WLED) device fabricated using CNYPO:0.18Eu<small><sup>2+</sup></small>,0.18Mn<small><sup>2+</sup></small>,2.16Mg<small><sup>2+</sup></small> on a 365 nm chip has a high colour rendering index of 89.0 and a low correlated colour temperature of 3580 K, indicating that the prepared phosphor has potential applications in plant lighting and WLEDs.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":null,"pages":null},"PeriodicalIF":7.393,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141568703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cold atmospheric plasma deposition of antibacterial polypyrrole–silver nanocomposites on wearable electronics for prolonged performance 在可穿戴电子设备上冷大气等离子体沉积抗菌聚吡咯-银纳米复合材料以延长其性能
IF 7.393 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2024-07-05 DOI: 10.1039/d4tc00844h
Ulisses Heredia-Rivera, Akshay Krishnakumar, Venkat Kasi, Muhammad Masud Rana, Sarath Gopalakrishnan, Sina Nejati, Gagan Gundala, James P. Barnard, Haiyan Wang, Rahim Rahimi
{"title":"Cold atmospheric plasma deposition of antibacterial polypyrrole–silver nanocomposites on wearable electronics for prolonged performance","authors":"Ulisses Heredia-Rivera, Akshay Krishnakumar, Venkat Kasi, Muhammad Masud Rana, Sarath Gopalakrishnan, Sina Nejati, Gagan Gundala, James P. Barnard, Haiyan Wang, Rahim Rahimi","doi":"10.1039/d4tc00844h","DOIUrl":"https://doi.org/10.1039/d4tc00844h","url":null,"abstract":"Wearable electronics have become integral for monitoring physiological parameters in diverse applications, particularly in medical and military fields. e-Textiles, featuring integrated conductive threads or fabrics, offer seamless integration and comfort for prolonged contact with the body. Despite their potential, the biofouling of textile-based electrode systems by skin microbes remains a significant challenge, limiting their operational lifespan. Recent studies have highlighted the efficacy of conductive nanocomposites with antibacterial agents, such as silver nanoparticles (AgNPs), in addressing biofouling concerns. However, implementing such systems on 3D fibrous structures and textile surfaces often proves complex and inefficient. To overcome these challenges, we explored cold atmospheric plasma (CAP)-based <em>in situ</em> polymerization for the direct deposition of functional conductive polypyrrole–silver (PPy–Ag) nanocomposites onto conductive textile surfaces. For this process, a customized CAP deposition system was engineered, enabling precise material deposition through robotic control of the plasma jet. This process achieved direct, conformal attachment onto textile fibrous structures, ensuring uniform distribution of conductive polypyrrole and silver in the form of AgNPs throughout the polymer polypyrrole matrix without compromising fabric flexibility and breathability, which was validated through different surface electron microscopy and chemical analysis (<em>e.g.</em>, EDX, FTIR, Raman, and XRD). Systematic studies with various precursor mixtures identified an optimized PPy–Ag composition that demonstrated stable antibacterial properties and biocompatibility against common skin microbes and epithelial cells. Systematic studies with various precursor mixtures identified an optimized PPy–Ag composition, with the precursor mixture containing 96 wt% pyrrole and 4 wt% AgNO<small><sub>3</sub></small> weight ratios as the optimal surface coating process, demonstrating stable antibacterial properties and biocompatibility against common skin microbes and epithelial cells respectively. As a proof of concept, the nanocomposite coating was applied to conductive carbon fabric surfaces as dry electrodes in a wearable garment for continues electrocardiography (ECG) monitoring over 10 days. Results revealed a significantly longer performance of the dry electrodes as comparable to standard gel-based Ag/AgCl electrodes (1 day) while providing less noise in ECG signal measurements from the subject, showcasing the potential of this technology for practical wearable applications. Envisioned as a groundbreaking solution, this technology opens new avenues for the scalable and effective integration of functional conductive circuits and sensors into everyday garments, ensuring prolonged and efficient performance in wearable electronics.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":null,"pages":null},"PeriodicalIF":7.393,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141568622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
MXenes and polymeric colloids nanocomposites for EMI shielding 用于 EMI 屏蔽的 MXenes 和聚合物胶体纳米复合材料
IF 7.393 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2024-07-04 DOI: 10.1039/d4tc02519a
Edina Rusen, Alexandra Mocanu, Oana Brincoveanu, Adina Boldeiu, Cosmin Romanitan, Martino Aldrigo, Sergiu Iordănescu, Aurel Diacon, Gabriela Toader, Raluca Gavrila
{"title":"MXenes and polymeric colloids nanocomposites for EMI shielding","authors":"Edina Rusen, Alexandra Mocanu, Oana Brincoveanu, Adina Boldeiu, Cosmin Romanitan, Martino Aldrigo, Sergiu Iordănescu, Aurel Diacon, Gabriela Toader, Raluca Gavrila","doi":"10.1039/d4tc02519a","DOIUrl":"https://doi.org/10.1039/d4tc02519a","url":null,"abstract":"This study presents the synthesis and characterization of nanocomposites based on polymer colloids (PC) and MXenes for applications in EMI shielding. The PCs were synthesized in the presence of MXenes by soap-free emulsion polymerization. The presence of the MXenes during the polymerization process induces changes in the nucleation process, which also occurs between the MXenes layers, leading to intercalated and finally fully exfoliated structures arising from the polymerization progress. Two co-monomer systems were synthesized in the presence of MXenes, both based on styrene (ST) and a second monomer, with different hydrophilic characteristics acrylic acid (AA) and hydroxypropyl methacrylate (HPMA), respectively. The nanocomposites were characterized by SEM, DLS, XRD, TGA, and EMI shielding capacity analyses. The analyses confirmed better compatibility between HPMA and the MXenes, which facilitated the formation of an exfoliated structure. The polymer colloids were incorporated into an epoxy resin to evaluate their EMI shielding abilities. The EMI tests showed that the electromagnetic properties of the epoxy film varied depending on the concentration of ST-HPMA-MXenes, resulting in increased electromagnetic transparency or absorption capacity.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":null,"pages":null},"PeriodicalIF":7.393,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141550919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Facile fabrication of dual-conductivity, humidity-responsive single-layer membranes: towards advanced applications in sensing, actuation, and energy generation 轻松制备双传导性、湿度响应型单层膜:实现传感、致动和能源生产领域的先进应用
IF 7.393 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2024-07-04 DOI: 10.1039/d4tc02195a
Ioanna Tzoumani, Denisa Druvari, Konstantinos C. Andrikopoulos, Antonio Dominguez-Alfaro, George G. Malliaras, Joannis K. Kallitsis
{"title":"Facile fabrication of dual-conductivity, humidity-responsive single-layer membranes: towards advanced applications in sensing, actuation, and energy generation","authors":"Ioanna Tzoumani, Denisa Druvari, Konstantinos C. Andrikopoulos, Antonio Dominguez-Alfaro, George G. Malliaras, Joannis K. Kallitsis","doi":"10.1039/d4tc02195a","DOIUrl":"https://doi.org/10.1039/d4tc02195a","url":null,"abstract":"Humidity sensors and actuators have recently gained significant attention, largely owing to their broad applicability in innovative fields. This study presents the fabrication of smart single-layer membranes with mixed conductivity and high responsiveness to humidity. Utilizing a water-based processing method, partially-carboxylated multi-walled carbon nanotubes (CNTs-COOH) were incorporated into flexible cross-linked composite membranes, alongside sodium poly(4-styrene sulfonate-<em><small>CO</small></em>-glycidyl methacrylate) (P(SSNa-<em><small>CO</small></em>-GMA40)) and polyacrylic acid (PAA). This approach led to membranes with mixed conductivity, where CNTs were employed for electronic conductivity and P(SSNa-<em><small>CO</small></em>-GMA40) provided ionic conductivity and humidity responsiveness. The developed membranes were thoroughly studied, in terms of microstructure morphology, physicochemical, mechanical and humidity sensing properties, while an extensive conductivity study was conducted as well. These smart composite membranes with responsive humidity-driven deformation show potential applications such as non-contact switches or soft-robotics materials. Furthermore, membranes with 30 wt% CNTs are considered an effective hygroelectric generator, providing an environmentally friendly and cost-effective new approach for moisture electricity generators (MEGs).","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":null,"pages":null},"PeriodicalIF":7.393,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141550918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The role of unfused-ring-based small-molecule acceptors as the third component in ternary organic photovoltaics 基于非熔环的小分子受体作为三元有机光伏技术中第三种成分的作用
IF 7.393 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2024-07-04 DOI: 10.1039/d4tc02104e
Bing-Huang Jiang, Yi-Sheng Chen, Yu-Chi You, Yu-Wei Su, Chun-Yen Chang, Hui-Shan Shih, Zhong-En Shi, Chih-Ping Chen, Ken-Tsung Wong
{"title":"The role of unfused-ring-based small-molecule acceptors as the third component in ternary organic photovoltaics","authors":"Bing-Huang Jiang, Yi-Sheng Chen, Yu-Chi You, Yu-Wei Su, Chun-Yen Chang, Hui-Shan Shih, Zhong-En Shi, Chih-Ping Chen, Ken-Tsung Wong","doi":"10.1039/d4tc02104e","DOIUrl":"https://doi.org/10.1039/d4tc02104e","url":null,"abstract":"The intricate blend morphology of ternary systems and its correlation with organic photovoltaic (OPV) performance remain incompletely understood. Here, three unfused-ring small-molecule acceptors were utilized as guest acceptors of the benchmark active layer PM6:Y6 to probe nanophase separation and energy loss phenomena. Those acceptors feature a napththobistrazole (NTz) bridging two cyclopenta[2,1-<em>b</em>,3,4-<em>b</em>′]dithiophene (CPDT) groups as the central unit which is equipping 2-(3-oxo-2,3dihydro-1<em>H</em>-inden-1-ylidene)malononitrile (ID), 2-(5,6-difluoro3-oxo-2,3-dihydro-1<em>H</em>-inden-1-ylidene)malononitrile (2F), and malononitrile (CN) groups as terminal groups respectively. The blend morphology of ternary active layers along with their optoelectronic properties were fully analyzed. Grazing-incidence wide-angle X-ray scattering (GIWAXS) unveiled that the end group of the guest acceptor influences nanophase separation within the ternary blend, affecting energy losses, particularly non-radiative recombination in the corresponding OPV. Among them, <strong>NTzCPDT2F</strong>, sharing the same end group as Y6, exhibited the highest open-circuit voltage (<em>V</em><small><sub>OC</sub></small>) and power conversion efficiency. This can be attributed to favorable end-to-end molecular packing between <strong>NTzCPDT2F</strong> and Y6, promoting nanophase separation. Our demonstration offers a deeper understanding of how blend nanophase separation governs the energy loss and <em>V</em><small><sub>OC</sub></small> of OPVs, providing a new design principle for acceptors.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":null,"pages":null},"PeriodicalIF":7.393,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141577646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bimetallic CoNi-metal–organic framework@molybdenum disulfide core–shell Z-scheme heterojunctions with broad-spectrum response toward optimized photocatalytic performance 具有宽光谱响应的双金属钴镍-金属-有机框架@二硫化钼核壳 Z 型异质结,可优化光催化性能
IF 7.393 2区 材料科学
Journal of Materials Chemistry C Pub Date : 2024-07-04 DOI: 10.1039/d4tc02046d
Xinyue Liu, Zipeng Xing, Na Zhang, Tao Cheng, Bo Ren, Weizi Chen, Zibin Wang, Zhenzi Li, Wei Zhou
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