Min Hun Jee, Xingchao Zhao, Kyo Bin Park, Min Gyu Kang, Xiaoling Ma, Dae Sung Chung, Fujun Zhang, Han Young Woo
{"title":"Fine-control of electron trapping for photomultiplication in organic photodetectors by modulating the insulating properties of nonfullerene acceptors.","authors":"Min Hun Jee, Xingchao Zhao, Kyo Bin Park, Min Gyu Kang, Xiaoling Ma, Dae Sung Chung, Fujun Zhang, Han Young Woo","doi":"10.1039/d5mh00640f","DOIUrl":"https://doi.org/10.1039/d5mh00640f","url":null,"abstract":"<p><p>Enhancing photomultiplication (PM) in organic photodetectors (OPDs) requires effective control of photogenerated trapped electrons. Conventional approaches typically adjust the conduction band of the acceptor. In this study, we present a novel strategy for precisely controlling electron trapping and trapped carrier lifetime in PM-OPDs. We synthesized a series of nonfullerene acceptors (NFAs) by modifying the ratio of conducting and insulating components in the conjugated molecular structure. By enhancing the insulating properties of the NFAs, we slowed both electron trapping and de-trapping processes. This resulted in fine-tuned trapped carrier lifetime (280-581 ms), trapped carrier density (2.04-13.4 × 10<sup>17</sup> cm<sup>-3</sup>), and Schottky barrier height (0.334-0.229 eV) under illumination. Higher concentrations of trapped electrons accumulated at the P3HT/Al interface, leading to a thinner Schottky barrier, reduced depletion region, and enhanced band bending, improving hole injection from the cathode. Among the NFAs, A-BTP-DT, with the highest insulating properties, exhibited superior PM effects, achieving a maximum external quantum efficiency of 7520% at -10 V (compared to 564% for the Y6-based device). This work represents the first successful demonstration of fine-tuning of electron trapping and PM effects, not by adjusting energy levels, but by modifying the insulating properties.</p>","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144782961","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}
{"title":"Nanozyme-enabled cancer theranostics: bridging enzyme mimicry and material intelligence.","authors":"Yupeng Wang, Xinxin Sun, Shunfeng Wang, Zhixiao Zhang, Jin Sun, Cong Luo, Zhonggui He, Shenwu Zhang","doi":"10.1039/d5mh01000d","DOIUrl":"https://doi.org/10.1039/d5mh01000d","url":null,"abstract":"<p><p>Nanozymes, an innovative class of biocatalytic nanomaterials, have emerged as promising tools in cancer theranostics. By combining the advantages of nanotechnology and enzymes, nanozymes not only mimic the functions of natural enzymes but also specifically target tumor sites, significantly enhancing the efficiency of biological reactions and overcoming the limitations of natural enzymes. In this review, we first introduce the catalytic activities and physicochemical properties of nanozymes. This dual functionality bridges therapeutic intervention and diagnostic precision. Furthermore, this review discusses the relevant antitumor mechanisms of nanozymes, their key roles in multimodal cancer therapies, and their potential as cancer diagnostic tools. Finally, a comprehensive discussion is provided on the advantages, challenges, design rationales, and future directions of nanozymes in clinical translation.</p>","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144774358","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}
Ji-Eun Yeo, Hyo Eun Jeong, Joo Hwan Ko, Hyeon-Ho Jeong, Young Min Song
{"title":"Spectrally-coded optical film for independent transmission and reflection on curved surface.","authors":"Ji-Eun Yeo, Hyo Eun Jeong, Joo Hwan Ko, Hyeon-Ho Jeong, Young Min Song","doi":"10.1039/d5mh01090j","DOIUrl":"https://doi.org/10.1039/d5mh01090j","url":null,"abstract":"<p><p>Emerging demands for anti-counterfeit security and adaptive camouflage necessitate optical films that conform to the curved transparent substrates of windows, visors, and protective eyewear. These surface-conformal films must deliver high chromatic performance while accommodating geometrical flexibility. Crucially, applications such as hidden displays and directional visual cues require distinct color outputs depending on viewing direction or polarization state. To meet this need, we present a flexible, surface-conformal dual-mode spectral-coded color film (DS-CF) that enables independent control over transmitted and reflected colors. By integrating two resonators within a multilayer thin-film structure, the DS-CF leverages both Lorentzian and Fano-type resonances to realize programmable bi-directional coloration. This design overcomes the limitations of conventional dyes and photonic structures that inherently couple transmission and reflection responses. A painting-inspired demonstration validates the vivid and high-purity color expression in both transmission (≈75%) and reflection (≈41%). Additionally, polarization-sensitive reflectance control is achieved by tailoring the deposition angle of the lossy layer. With scalable fabrication and mechanical flexibility, the DS-CF offers a versatile platform for multifunctional optical films in anti-counterfeit labeling, hidden displays, and adaptive camouflage technologies.</p>","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144774359","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}
{"title":"Symmetry-reduction enhancement of nitrate removal on record-breaking layered yttrium hydroxide adsorbents.","authors":"Xinyue Sheng, Yu Wang, Jun Xu","doi":"10.1039/d5mh01085c","DOIUrl":"https://doi.org/10.1039/d5mh01085c","url":null,"abstract":"<p><p>A new class of layered metal hydroxide materials, namely layered yttrium hydroxides (LYH-X, X<sup>-</sup> are anions such as Cl<sup>-</sup> and Br<sup>-</sup>), are reported to be excellent adsorbents to capture nitrate-nitrogen from neutral water. More importantly, the adsorption properties are correlated with the crystal symmetry of adsorbents: both the adsorption capacity and rate constant of LYH-Cl (orthorhombic <i>P</i>2<sub>1</sub>2<sub>1</sub>2 space group) are almost twice of those of LYH-Br (monoclinic <i>P</i>2<sub>1</sub> space group). A comprehensive study combining multinuclear solid-state NMR spectroscopy and other multiscale characterization techniques was then performed to understand the origin of the symmetry-related adsorption behaviors. The results reveal an increasing trend of change in local environments of Y(OH)<sub>7</sub>·H<sub>2</sub>O, Y(OH)<sub>8</sub>·H<sub>2</sub>O, and Y(OH)<sub>8</sub>, implying that the adsorbed nitrate anions are located within the pocket constructed by alternating Y(OH)<sub>8</sub>·H<sub>2</sub>O and Y(OH)<sub>8</sub>. The splitting of the <sup>89</sup>Y NMR peak of Y(OH)<sub>8</sub>·H<sub>2</sub>O of LYH-Cl after adsorption is consistent with the reduction of crystal symmetry from <i>P</i>2<sub>1</sub>2<sub>1</sub>2 to its translationengleiche subgroup <i>P</i>2, providing an additional driving force for nitrate capture. This work thus not only discovers a nitrate adsorbent with a superior capacity of 44.56 ± 0.17 mg g<sup>-1</sup>, but also demonstrates a new concept of symmetry-driven adsorption enhancement.</p>","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144774360","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}
Jinjie Shi, Jie Luo, Chenkai Liu, Hongchen Chu, Yongxin Jing, Changqing Xu, Xiaozhou Liu, Jensen Li, Yun Lai
{"title":"From directional to omnidirectional: meta-devices for ultrabroadband sound absorption with near-causality-limit performance.","authors":"Jinjie Shi, Jie Luo, Chenkai Liu, Hongchen Chu, Yongxin Jing, Changqing Xu, Xiaozhou Liu, Jensen Li, Yun Lai","doi":"10.1039/d5mh00404g","DOIUrl":"https://doi.org/10.1039/d5mh00404g","url":null,"abstract":"<p><p>Traditional microperforated panel (MPP)-cavity absorbers and metamaterial-based sound absorbers rely on local resonances or multi-resonator designs, which limit their bandwidth, angular applicability, and ease of fabrication. Leveraging the reciprocity theorem and cavity resonances, we introduce a robust class of MPP absorbers, termed meta-MPPs, capable of achieving ultrabroadband near-total sound absorption across a range of 0.37 to 10 kHz. These absorbers demonstrate average performance exceeding that of traditional MPP-cavity absorbers, approaching the theoretical causality limit. Notably, their absorption performance can be tuned between angularly asymmetric and omnidirectional modes and remains highly robust to variations in MPP parameters and geometrical configurations. Validated through simulations and experiments, our findings present a simpler, more robust, and highly adaptable solution for noise control.</p>","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144774356","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}
Chang He, Quan Liu, Fangcheng Si, Jie Ding, Wendong Zhang, Xuge Fan
{"title":"NEMS acceleration transducers based on MoS<sub>2</sub>/graphene heterostructure ribbons with an attached proof mass: a simulation study.","authors":"Chang He, Quan Liu, Fangcheng Si, Jie Ding, Wendong Zhang, Xuge Fan","doi":"10.1039/d5mh00994d","DOIUrl":"https://doi.org/10.1039/d5mh00994d","url":null,"abstract":"<p><p>Compared with silicon-based accelerometers, nanoelectromechanical system accelerometers based on two-dimensional materials have potential advantages such as ultra-small sizes and high sensitivity. However, transition metal dichalcogenide based NEMS accelerometers, such as molybdenum disulfide (MoS<sub>2</sub>) based accelerometers, have not been studied yet. Here, we modeled different acceleration transducers based on MoS<sub>2</sub>/graphene heterostructure ribbons, double-layer MoS<sub>2</sub> ribbons and double-layer graphene ribbons with an attached SiO<sub>2</sub>/Si proof mass and simulated their mechanical properties in triaxial directions. Using the finite element analysis method, Young's moduli of these 2D membranes were estimated. Furthermore, the impacts of geometrical sizes of acceleration transducers, built-in stresses in suspended 2D ribbons, and applied forces on the deflections and strains of suspended 2D ribbons, as well as first- to sixth-order resonant frequencies of acceleration transducers, were studied. This work would lay a solid foundation for the design, fabrication, and application of next-generation high-performance NEMS accelerometers based on 2D membranes.</p>","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144758675","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}
Mohammad Javad Zarei, Sreekiran Pillai, Omar Eldaly, Adil Majeed Rather, Sravanthi Vallabhuneni, Mohammed A Zikry, Arun Kumar Kota
{"title":"Hyperelastic superomniphobic surfaces <i>via</i> microprotrusion-induced stress redistribution.","authors":"Mohammad Javad Zarei, Sreekiran Pillai, Omar Eldaly, Adil Majeed Rather, Sravanthi Vallabhuneni, Mohammed A Zikry, Arun Kumar Kota","doi":"10.1039/d5mh01250c","DOIUrl":"10.1039/d5mh01250c","url":null,"abstract":"<p><p>In this work, we report hyperelastic superomniphobic surfaces that have been engineered to retain superomniphobicity, without coating delamination, even at 400% strain and after thousands of stretch-release cycles. To achieve such hyperelastic superomniphobic surfaces, we introduce a novel design - an array of discrete microprotrusions on the hyperelastic material that redistribute the stresses out-of-plane during elongation. Such an out-of-plane redistribution of stresses results in nearly stress-free tops of the microprotrusions, allowing the coating to be virtually intact even after 5000 stretch-release cycles. Furthermore, through systematic experiments and theoretical analysis, we studied the influence of elongation on contact angles, sliding angles and breakthrough pressures on our hyperelastic superomniphobic surfaces. We envision that our robust hyperelastic superomniphobic surfaces will have a wide range of applications in wearable electronics, textiles, artificial skins, droplet manipulation and protective wraps.</p>","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12381963/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144758673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yingtao Zhong, Ziwen Qiu, Keyan Zhang, Zhenming Lu, Zhuofeng Li, Junmei Nie, Hong Cheng
{"title":"Lymph node-targeted metabolic regulatory nanovaccines to boost cancer immunotherapy by potentiating dendritic cell-mediated antigen presentation.","authors":"Yingtao Zhong, Ziwen Qiu, Keyan Zhang, Zhenming Lu, Zhuofeng Li, Junmei Nie, Hong Cheng","doi":"10.1039/d5mh01048a","DOIUrl":"https://doi.org/10.1039/d5mh01048a","url":null,"abstract":"<p><p>Tumor vaccines represent a promising strategy for the prevention and treatment of cancer. However, suboptimal targeting efficiency to dendritic cells (DCs) and inadequate antigen presentation by metabolically dysfunctional DCs significantly hinder vaccination efficacy. <i>In vitro</i> drug screening reveals that lovastatin (Lov) effectively inhibits antigen degradation in DCs by modulating the mevalonate (MVA) pathway, thereby enhancing antigen presentation. Additionally, tumor-derived water-insoluble neoantigens contain abundant immunogenic mutated components but suffer from limited vaccination efficiency. Based on these findings, a metabolic regulatory nanovaccine (DAL) with excellent lymph node targeting capacity is developed through the self-assembly of dextran derivatives, water-insoluble neoantigens, and Lov to stimulate robust antitumor immunity. DAL effectively targets DCs in lymph nodes, inhibits the MVA pathway to enhance antigen presentation, and promotes cytotoxic T cell infiltration, thereby facilitating long-term immune surveillance. <i>In vivo</i> experiments demonstrate that DAL inhibits tumorigenesis, attenuates tumor progression, and enhances the efficacy of immune checkpoint blockade (ICB) therapy. Collectively, this work provides a metabolic regulatory strategy for tumor vaccination, offering a potential approach to develop personalized vaccines for tumor immunotherapy.</p>","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144758674","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}
Kai Zhang, Mengyuan Gao, Junjiang Wu, Chunlong Sun, Wenchao Zhao, Diyora Urazkulova, Vakhobjon Kuvondikov, Sherzod Nematov, Long Ye
{"title":"Cost-effective poly(3-alkylthiophene)-based organic photovoltaics: advancing solar energy conversion and photodetection technologies.","authors":"Kai Zhang, Mengyuan Gao, Junjiang Wu, Chunlong Sun, Wenchao Zhao, Diyora Urazkulova, Vakhobjon Kuvondikov, Sherzod Nematov, Long Ye","doi":"10.1039/d5mh01115a","DOIUrl":"https://doi.org/10.1039/d5mh01115a","url":null,"abstract":"<p><p>Poly(3-alkylthiophene)s (P3ATs), particularly poly(3-hexylthiophene) are cornerstone materials for organic photovoltaics, bridging efficiency, scalability, and solution processability. This article systematically outlines advancements in P3AT-based organic solar cells (OSCs) and photodetectors (OPDs), focusing on materials physics principles, structure-property relationships, and application-driven optimization. Innovations in polymerization methods enable high regioregularity and eco-friendly production. Critical structural parameters-molecular weight, regioregularity, and side-chain topology-are dissected, with strategically tailored molecular weight/regioregularity and alkyl chains optimizing charge transport and morphology. Dual donor/acceptor blending, solvent engineering, and post-processing strategies further enhance device performance, achieving high efficiency for OSCs and specific detectivities exceeding 10<sup>14</sup> Jones for OPDs. Photomultiplication mechanisms and spectral engineering enable ultrahigh responsivity (EQE >770 000%) and narrowband detection. Application-oriented designs, including intrinsically stretchable all-polymer systems and semi-transparent architectures, highlight P3ATs' versatility in wearable electronics and building-integrated photovoltaics. Future directions emphasize truly green solvents, simplified acceptors, and machine learning-guided material design to advance commercialization. By synergizing material innovation with scalable processing, P3ATs and their close variants offer a sustainable pathway for next-generation optoelectronics, balancing performance, stability, and environmental impact.</p>","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144758672","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}
Tao Zhang, Zewei Shao, Cuicui Cao, Chengcong Li, Zhongshao Li, Fei Cao, Genshui Wang, John Bell, Hongjie Luo, Ping Jin, Xun Cao
{"title":"Tri-band smart window envelope based on temperature adaptive kirigami structure.","authors":"Tao Zhang, Zewei Shao, Cuicui Cao, Chengcong Li, Zhongshao Li, Fei Cao, Genshui Wang, John Bell, Hongjie Luo, Ping Jin, Xun Cao","doi":"10.1039/d5mh01009h","DOIUrl":"https://doi.org/10.1039/d5mh01009h","url":null,"abstract":"<p><p>Regulating thermal radiation exchange between windows and the environment is crucial for building energy efficiency. While traditional low-emissivity (Low-E) windows and emerging smart windows offer promising solutions, they face challenges in adapting to complex changes in temperature and light conditions. In this paper, we introduce a temperature-adaptive radiator with a kirigami structure (TARK) window envelope, which integrates a vanadium dioxide (VO<sub>2</sub>) based Fabry-Pérot (F-P) cavity with an angle-adjustable kirigami structure. This design enables temperature-adaptive solar modulation and angle-adjustable thermal radiation, addressing the limitations of conventional approaches. Specifically, the TARK achieves 31.10% solar modulation (Δ<i>T</i><sub>SOL</sub>), 0.96 mid-infrared emissivity (<i>ε</i><sub>MIR</sub>) at high temperatures, and 0.63 mid-infrared modulation (Δ<i>ε</i><sub>MIR</sub>) with angle-adjustable radiation capabilities. Experimental validation under indoor and outdoor conditions confirms its directional radiation performance and robustness across diverse weather scenarios. Moreover, the device demonstrates up to 25.3% savings in HVAC energy consumption compared to glass, highlighting its potential for significant energy savings in building applications. This work advances the development of next-generation smart window technologies by combining materials science, structural engineering, and environmental adaptability.</p>","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144758676","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}