Wenhui Zhao (, ), Zhibin Cheng (, ), Aohua Niu (, ), Yujing Wang (, ), Rong Wen (, ), Shaoding Liu (, ), Kaibo Zheng (, ), Guohui Li (, ), Yanxia Cui (, )
{"title":"Phase-purity engineering in quasi-2D perovskites for amplified spontaneous emission","authors":"Wenhui Zhao \u0000 (, ), Zhibin Cheng \u0000 (, ), Aohua Niu \u0000 (, ), Yujing Wang \u0000 (, ), Rong Wen \u0000 (, ), Shaoding Liu \u0000 (, ), Kaibo Zheng \u0000 (, ), Guohui Li \u0000 (, ), Yanxia Cui \u0000 (, )","doi":"10.1007/s40843-025-3981-7","DOIUrl":"10.1007/s40843-025-3981-7","url":null,"abstract":"<div><p>Solution-processable quasi-2D perovskites are regarded as promising candidates for laser gain media due to their superior exciton binding energy and stability compared to their 3D counterparts. However, quasi-2D perovskites produced through conventional methods often display a distribution of <i>n</i>-value phases, arising from the necessity of multiple precursors to react. The presence of impurity phases may introduce interfacial defects and energetic disorder, which can hinder charge injection into the desired emission centers. In this study, we present the first demonstration of stimulated emission from a phase-pure quasi-2D perovskite achieved through a solvent-sieving method for selective phase removal. This approach enables the dynamic purification of quasi-2D perovskites (<i>n</i> = 8) and significantly lowers the threshold for amplified spontaneous emission. X-ray diffraction and ultraviolet-visible characterization reveal a nearunity <i>n</i> = 8 phase (99.85%) with no detectable low-<i>n</i> phases in our samples. Additionally, the phase-pure quasi-2D perovskite film exhibits a narrower and more intense 001 peak (full width at half maximum (FWHM) of 0.16 nm, intensity of 16,129) compared to that of the pristine quasi-2D perovskite film (FWHM of 0.22 nm, intensity of 3304), indicating an increased grain size and enhanced crystallinity. This improvement leads to a prolonged charge carrier lifetime of approximately 6.98 ns, suggesting a reduced trap density. Furthermore, the phase-pure perovskite film is nearly pinhole-free and features an exceptionally flat surface with a root mean square roughness of 1.18 nm. Consequently, the phase-pure quasi-2D perovskite demonstrates a lower amplified spontaneous emission threshold of approximately 13.82 µJ cm<sup>−2</sup>, representing a 12.5% reduction compared to conventional mixed-phase films. This work offers an efficient method for producing pure-phase quasi-2D perovskite suitable for low-threshold lasers.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 7","pages":"3847 - 3855"},"PeriodicalIF":7.7,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148433969","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}
X. Y. Xu (, ), Weng-Jia Liu (, ), Bing-Qiang Wei (, ), Min Deng (, ), Jia-Ning Zhu (, ), Hui-Yuan Wang (, )
{"title":"High-purity alloys for enhanced service performance: processing, mechanisms and prospects","authors":"X. Y. Xu \u0000 (, ), Weng-Jia Liu \u0000 (, ), Bing-Qiang Wei \u0000 (, ), Min Deng \u0000 (, ), Jia-Ning Zhu \u0000 (, ), Hui-Yuan Wang \u0000 (, )","doi":"10.1007/s40843-025-3870-9","DOIUrl":"10.1007/s40843-025-3870-9","url":null,"abstract":"<div><p>With the rapid advancement of high-performance systems and the growing demands for material reliability in extreme environments, high-purity alloys have become indispensable in next-generation technologies. Trace impurities—even at parts-per-million levels—can drastically deteriorate mechanical properties, corrosion resistance, and long-term stability in critical applications such as aerospace, nuclear reactors, advanced microelectronics, and medical implants. High-purity alloys are therefore key to meeting the stringent performance and reliability demands of these technologies. This review provides a comprehensive overview of recent advances in the development of high-purity alloys, including purification approaches, processing strategies, and performance optimization. It summarizes how trace impurities affect microstructural evolution and material properties and discusses techniques for achieving ultralow impurity levels. The review also highlights impurity sensitivity across major alloy systems and summarizes current strategies to mitigate impurity-related degradation. Moreover, it outlines the role of advanced characterization techniques in detecting and quantifying impurities. Finally, this review emphasizes the essential role of high-purity alloys in the development of advanced structural and functional materials, and outlines the key challenges and future directions in this emerging field.</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 6","pages":"3011 - 3033"},"PeriodicalIF":7.4,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148154229","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}
Xin Zhou (, ), Shuming Kang (, ), Yihan Huang (, ), Xinhua Wan (, ), Jie Zhang (, )
{"title":"Tailoring 2D assemblies from anisotropic hexagons to chiral vortices by modulating asymmetric side chains in helical poly(phenylacetylene) derivatives","authors":"Xin Zhou \u0000 (, ), Shuming Kang \u0000 (, ), Yihan Huang \u0000 (, ), Xinhua Wan \u0000 (, ), Jie Zhang \u0000 (, )","doi":"10.1007/s40843-025-3992-y","DOIUrl":"10.1007/s40843-025-3992-y","url":null,"abstract":"<div><p>The two-dimensional (2D) materials exhibit excellent electrical, optical, and mechanical properties. However, achieving precise control over chiral 2D materials remains a significant challenge. The present work introduces asymmetric side chain engineering to prepare the helically grooved poly(3,5-disubstituted phenylacetylene)s (PPAs), and investigates the effect of their asymmetric contour on tailoring 2D nanostructures. The post-polymerization modification of the same platform polymer was used to efficiently prepare a series of rigid helical PPAs with various lengths of alkyl side chains and the identical degrees of polymerization and distribution. Increasing asymmetry of side chains produces anisotropic hexagonal platelets with progressively high aspect ratios, while PPAs with symmetric side chains form regular 2D hexagonal sheets. Notably, the largest side chain asymmetry generates supramolecular structures with distinct chiral vortices. The computational simulations have also been performed to further elucidate the different self-assembly mechanisms of polymers. All 2D assemblies exhibit significantly enhanced circularly polarized luminescence compared to discrete polymer solutions. This work establishes side chain asymmetry as a crucial factor for programming supramolecular chirality and opens new avenues for developing advanced chiroptical materials.\u0000</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 5","pages":"2583 - 2589"},"PeriodicalIF":7.4,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147968432","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}
Binbin Zhai (, ), Yuhan Yang (, ), Junjie Wang (, ), Xinyue Wang (, ), Chi Zhang (, ), Yanyan Luo (, ), Jianfei Ma (, ), Zhi-Hao Zhao (, ), Yu Fang (, )
{"title":"Achieving wide linear range and high sensitivity in capacitive pressure sensors via a stretchable nanofilm with interlocked hierarchy","authors":"Binbin Zhai \u0000 (, ), Yuhan Yang \u0000 (, ), Junjie Wang \u0000 (, ), Xinyue Wang \u0000 (, ), Chi Zhang \u0000 (, ), Yanyan Luo \u0000 (, ), Jianfei Ma \u0000 (, ), Zhi-Hao Zhao \u0000 (, ), Yu Fang \u0000 (, )","doi":"10.1007/s40843-025-3925-5","DOIUrl":"10.1007/s40843-025-3925-5","url":null,"abstract":"<div><p>Capacitive pressure sensors have garnered significant attention in electronic skin, human-machine interaction, health monitoring and medical devices due to their remarkable properties like highly sensitive pressure perception, good repeatability, and rapid response capabilities. However, manufacturing capacitive pressure sensors that simultaneously achieve a broad linear detection range and high sensitivity remains a significant challenge. Herein, a novel hierarchically interlocked capacitive pressure sensor (HI-CPS) was designed by integrating the stretchable polyethylene glycol (PEG)-based nanofilm dielectric layer with hierarchically interlocked microstructures, which demonstrates excellent linearity and high sensitivity over a wide sensing range. HI-CPS based on a one-layer nanofilm exhibits ultrahigh sensitivity (9.40 kPa<sup>−1</sup>) and an ultralow detection limit (0.1 Pa). When the dielectric layer comprises two layers of stacked nanofilms, the sensor not only maintains high sensitivity (3.17 kPa<sup>−1</sup>) but also achieves excellent linearity (<i>R</i><sup>2</sup> = 0.999) over a broad working range (<5 kPa), along with remarkable stability even after 10,000 cycles. Benefitting from the outstanding comprehensive performance, HI-CPS has been proven to be successfully implemented in monitoring various human biological signals, sign language recognition, and basketball shooting gesture correction. This strategy of assembling the tailored nanofilm with structural engineering has significant potential application in building high-performance pressure detection and recognition devices.</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 6","pages":"3594 - 3603"},"PeriodicalIF":7.4,"publicationDate":"2026-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148154145","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}
Ming-Jun Ji (, ), Pei Zhao (, ), Hai-Yan Lu (, ), Chuan-Feng Chen (, )
{"title":"Circularly polarized electroluminescence achieved in achiral emitters via chiral nematic liquid crystals","authors":"Ming-Jun Ji \u0000 (, ), Pei Zhao \u0000 (, ), Hai-Yan Lu \u0000 (, ), Chuan-Feng Chen \u0000 (, )","doi":"10.1007/s40843-025-3957-y","DOIUrl":"10.1007/s40843-025-3957-y","url":null,"abstract":"<div><p>Developing circularly polarized organic light-emitting diodes (CP-OLEDs) that simultaneously achieve a high electroluminescence dissymmetry factor (<i>g</i><sub>EL</sub>) and a high external quantum efficiency (EQE) remains a central challenge in polarized optoelectronics. Here, we report a general composite strategy for constructing full-color CP-OLEDs by integrating a 5CB-based chiral nematic liquid crystal (N*-LC) layer with OLEDs based on achiral emitters. The resulting CP-OLEDs exhibit both high polarization purity and high electroluminescence efficiency, with |<i>g</i><sub>EL</sub>| values of up to 1.9, EQEs reaching 26.9%, and <i>Q</i>-factors as high as 0.48. Notably, contrary to the conventional assumption that N*-LC integration causes severe optical losses (>50%) due to Bragg reflection, the EQE of the devices is preserved mainly in this composite architecture. This behavior is attributed to an internal photon-recycling process enabled by the reflection of light within the device structure. To the best of our knowledge, these CP-OLEDs represent the highest comprehensive performance reported to date. Furthermore, the practical utility of these high-performance devices is demonstrated through the encryption and decryption of information based on circularly polarized electroluminescence.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 7","pages":"3887 - 3897"},"PeriodicalIF":7.7,"publicationDate":"2026-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148433546","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":"Dual-functional chemical pre-sodiation of carbon-coated hard carbon anodes with initial Coulombic efficiency up to 99.5% for sodium-ion batteries","authors":"Siyuan Lin \u0000 (, ), Haihan Zhang \u0000 (, ), Zhenxin Huang \u0000 (, ), Qianyu Zhang \u0000 (, ), Yunhua Xu \u0000 (, ), Chengyong Shu \u0000 (, ), Yuping Wu \u0000 (, ), Wei Tang \u0000 (, )","doi":"10.1007/s40843-025-3944-9","DOIUrl":"10.1007/s40843-025-3944-9","url":null,"abstract":"<div><p>Hard carbon (HC) has been regarded as a promising anode material for sodium-ion batteries (SIBs), yet its practical commercial application is hindered by the low initial Coulombic efficiency (ICE) and unstable solid electrolyte interphase (SEI). Herein, we propose a dual-functional strategy that synergizes surface engineering and solution chemical pre-sodiation in SIBs. Along with the graphitic carbon coating on HC acting as a conductive buffer network and shield the surface defects, we also facilitated a potential difference to drive sodium ions into the material by leveraging the low potential advantage of sodium biphenyl (Na-Bp), thereby inducing the formation of a pre-SEI layer and subsequent formation of a thin, dense and NaF rich inorganic components of mature SEI layer during cycling. This innovative approach effectively compensated for the irreversible loss of sodium ions during the initial cycle and significantly enhanced long-term cycling stability. Thanks to the seamless integration of these two strategies, the pre-sodiated electrode (pCH<sub>4</sub>-HC) exhibited a desirable ICE of 99.5% and a high reversible capacity of 321.7 mA h g<sup>−1</sup>. Last but not the least, when pCH<sub>4</sub>-HC was coupled with NaNi<sub>1/3</sub>Fe<sub>1/3</sub>Mn<sub>1/3</sub>O<sub>2</sub> (NFM) cathode, the full-cell pCH<sub>4</sub>-HC∥NFM demonstrated excellent cycling stability and rate performance, underscoring the substantial benefits of pre-sodiation technology for rapid full-cell matching. It validated the robust adaptability of our dual-strategy approach, broadening the scope of pre-sodiation technology and accelerating the development of high performance in SIBs.</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 6","pages":"3463 - 3471"},"PeriodicalIF":7.4,"publicationDate":"2026-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148154245","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}
Xiaowei Wu (, ), Guorui Xiao (, ), Qingfeng Song (, ), Chen Ming (, ), Dudi Ren (, ), Shengqiang Bai (, ), Lidong Chen (, ), Yi-Yang Sun (, )
{"title":"High-performance perovskite thermoelectrics in BaZrS3 via decoupling of charge and heat transport","authors":"Xiaowei Wu \u0000 (, ), Guorui Xiao \u0000 (, ), Qingfeng Song \u0000 (, ), Chen Ming \u0000 (, ), Dudi Ren \u0000 (, ), Shengqiang Bai \u0000 (, ), Lidong Chen \u0000 (, ), Yi-Yang Sun \u0000 (, )","doi":"10.1007/s40843-025-3948-7","DOIUrl":"10.1007/s40843-025-3948-7","url":null,"abstract":"<div><p>High-performance thermoelectric materials are typically narrow-band gap semiconductors. Here, by decoupling charge and heat transport in BaZrS<sub>3</sub> with a band gap of about 1.9 eV, we made the emerging chalcogenide perovskite a high-performance thermoelectric material with only earth-abundant elements. Our first-principles calculations indicate that the high ionicity of BaZrS<sub>3</sub> renders the electrons to propagate mainly through the Zr-4d orbitals, so that isovalent alloying Se on S sites minimally affects its charge transport while effectively suppressing lattice thermal conductivity. Using a flux-assisted solid-state method, we synthesized single-phase BaZrS<sub>3(1−<i>x</i>)</sub>Se<sub>3<i>x</i></sub> samples with 0 ⩽ <i>x</i> ⩽ 0.25. As an indicator of decoupled charge and heat transport, the electron mobility is found barely degraded with increasing Se content, while the thermal conductivity is significantly reduced from 2.07 to 0.99 W m<sup>−1</sup> K<sup>−1</sup> at room temperature. This results in a record-high <i>ZT</i> of 0.81 at 750 K, a value never achieved for materials with band gaps greater than 1.5 eV, and the highest among all perovskite materials. Our work not only underscores the potential of wide band gap semiconductors as highperformance thermoelectric materials, but also demonstrates the strategy of decoupling the charge and heat transport for enhancing their thermoelectric performance.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 7","pages":"4195 - 4202"},"PeriodicalIF":7.7,"publicationDate":"2026-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148433544","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":"Calcium-free nanomaterials-mediated calcium overloading for cancer therapy","authors":"Jingbo Dong \u0000 (, ), Lutong Wen \u0000 (, ), Cheng Zhang \u0000 (, ), Zaifeng Chen \u0000 (, ), Qiufang Gong \u0000 (, ), Guosheng Song \u0000 (, ), Chao Liang \u0000 (, )","doi":"10.1007/s40843-025-3904-6","DOIUrl":"10.1007/s40843-025-3904-6","url":null,"abstract":"<div><p>Disrupting calcium ions (Ca<sup>2+</sup>) homeostasis to induce calcium overloading has emerged as a promising strategy for cancer therapy. However, calcium overloading based on exogenous calcium salts (such as calcium carbonate and calcium peroxide) can easily lead to off-target Ca<sup>2+</sup> release, causing severe side effects such as hypercalcemia and cardiac or renal dysfunction. This review explores the calcium-free nanomaterials for mediating targeted calcium dysregulation in tumors. These nanomaterials function not by carrying Ca<sup>2+</sup> but by precisely regulating endogenous calcium signaling pathways. They promote massive Ca<sup>2+</sup> influx through targeted activation of calcium channels and/or inhibit Ca<sup>2+</sup> efflux by suppressing pumps, effectively triggering intracellular calcium accumulation. Such a strategy efficiently induces mitochondrial dysfunction, endoplasmic reticulum stress, and immunogenic cell death, thereby inhibiting tumor growth and metastasis while potentiating antitumor immunity. We systematically summarize the design principles, mechanisms of action, and therapeutic applications of these calcium-free nanoplatforms, highlighting their potential to overcome the limitations of traditional therapies and boost ion-interference-based cancer treatment.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 7","pages":"3787 - 3807"},"PeriodicalIF":7.7,"publicationDate":"2026-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148434097","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":"Aligned ion transport design advances high-performance moisture-enabled energy harvesting and multidirectional sensing","authors":"Qun Zhou \u0000 (, ), Junze Guo \u0000 (, ), Xian Wen \u0000 (, ), Yalin Dong \u0000 (, ), Zhaoyang Sun \u0000 (, ), Kunlin Qin \u0000 (, ), Xinyang He \u0000 (, ), Hongnan Zhang \u0000 (, ), Liming Wang \u0000 (, ), Xiaohong Qin \u0000 (, )","doi":"10.1007/s40843-025-3921-2","DOIUrl":"10.1007/s40843-025-3921-2","url":null,"abstract":"<div><p>Emerging moisture-enabled energy harvesting technologies offer a promising route for self-powered strain sensing, yet conventional generators suffer from slow response, poor recovery, and limited multidirectional resolution. Here, we report a stretchable thermoplastic polyurethane (TPU) nanofiber moisture-enabled electric generator (MEG) with highly aligned ion channels. A carbon black/sodium dodecylbenzene sulfonate (CB/SDBS) layer is coated on the TPU membrane, while carboxymethyl cellulose (CMC) and acidified poly(sodium 4-styrenesulfonate) (HPSS) are applied on opposite sides, establishing lateral hydrophilicity and ion gradients to drive directional ion migration. The planar MEG is lightweight, flexible, and requires no fully covered electrodes, enabling conformity to complex deformations. The aligned channels reduce ion migration tortuosity, enhancing ion transport efficiency and flux. As a result, the aligned MEG (ATMEG) delivers 0.2 V and 0.51 µA cm<sup>−2</sup> at ∼90% relative humidity, corresponding to 400% and 287% enhancements compared with the unaligned MEG (UATMEG). The ATMEG also exhibits ultrafast response (0.16 s) and recovery (0.08 s). Utilizing its anisotropic characteristics, a multidirectional self-powered strain sensor is developed, capable of distinguishing both the amplitude and direction of human motion, demonstrating strong potential for adaptive wearable electronics and intelligent motion monitoring.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 7","pages":"4245 - 4257"},"PeriodicalIF":7.7,"publicationDate":"2026-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148433550","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}
Taikun Yao (, ), Jiazuo Zhou (, ), Yifan Liu (, ), Fangmiao Wang (, ), Lei Qiao (, ), Dongxia Ji (, ), Kai Zhang (, ), Longxiang Sun (, ), Jiahao Ye (, ), Haiyue Yang (, ), Chengyu Wang (, )
{"title":"Bioinspired reprocessable dual crosslinked solid-solid phase change material for solar-assisted thermal energy storage and multi-scenario thermal camouflage","authors":"Taikun Yao \u0000 (, ), Jiazuo Zhou \u0000 (, ), Yifan Liu \u0000 (, ), Fangmiao Wang \u0000 (, ), Lei Qiao \u0000 (, ), Dongxia Ji \u0000 (, ), Kai Zhang \u0000 (, ), Longxiang Sun \u0000 (, ), Jiahao Ye \u0000 (, ), Haiyue Yang \u0000 (, ), Chengyu Wang \u0000 (, )","doi":"10.1007/s40843-025-3934-1","DOIUrl":"10.1007/s40843-025-3934-1","url":null,"abstract":"<div><p>Solar energy, a clean and abundant resource, can be stored as latent heat in solid-solid phase change materials (SSPCMs) and subsequently utilized. This offers great potential for advancing passive thermal management technologies such as thermal camouflage. Conventional SSPCMs often require active heating for high-temperature conditions, leading to additional energy consumption. Moreover, their permanent crosslinked structures also limit reprocessability and increase environmental burden. Herein, we present a lizard-skin-inspired, solar-thermal-responsive, and reprocessable SSPCM (FTSPCM) featuring a dual crosslinked structure composed of dynamic phenol–carbamate bonds and Fe<sup>3+</sup>@Tannic acid (TA) coordination. Polyethylene glycol (PEG) functions as the phase change segment, while TA introduces both reversible covalent crosslinking and photothermal responsiveness. The FTSPCM exhibits a high latent heat of 102.9 J g<sup>−1</sup>, excellent shape stability, and maintains its thermal performance after three reprocessing cycles at 120 °C. The Fe<sup>3+</sup>@TA coordination network enables strong near-infrared absorption and efficient solar-thermal conversion, achieving a surface temperature of 62 °C and a conversion efficiency of 96.85% under 2 Suns irradiation. This dual-function design allows the material to achieve passive thermal camouflage via latent heat release at low temperatures and solar-assisted photothermal heating at high temperatures. This work presents a sustainable strategy for developing reprocessable, solar-responsive SSPCMs, showcasing the distinctive advantages of tannic acid-derived polyphenol chemistry in constructing passive thermal management systems for energy-efficient thermal camouflage and solar-driven thermal energy storage.</p><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"69 6","pages":"3441 - 3453"},"PeriodicalIF":7.4,"publicationDate":"2026-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148154242","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}
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