Science China Materials最新文献

{"title":"Unlocking intrinsic stretchability in PM6-based materials for next-generation solar cells: challenges and innovations","authors":"Chunlong Sun \u0000 (,&nbsp;),&nbsp;Saimeng Li \u0000 (,&nbsp;),&nbsp;Vakhobjon Kuvondikov \u0000 (,&nbsp;),&nbsp;Sherzod Nematov \u0000 (,&nbsp;),&nbsp;Long Ye \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-3406-2","DOIUrl":"10.1007/s40843-025-3406-2","url":null,"abstract":"<div><p>In the rapidly evolving field of wearable electronics, stretchy organic solar cells (OSCs) have emerged as promising candidates for portable power sources, necessitating materials with superior mechanical flexibility. However, the inherent rigidity of conjugated backbones in top-performance photovoltaic polymers, such as PM6, poses a significant challenge, as it makes photovoltaic films prone to fracture under mechanical strain. Consequently, improving the mechanical properties of these films is a crucial research frontier for advancing stretchable photovoltaic technologies. This tutorial review provides a thorough examination of current strategies aimed at bolstering the mechanical resilience of polymer photovoltaic thin films, elucidated through a selection of pertinent examples leveraging the PM6-based systems. We first explore the prevalent strategy of incorporating third components, including guest polymer donors/acceptors and insulating polymers, to improve stretchability. We then discuss the structural design of PM6 aimed at reducing the backbone rigidity. Additionally, we summarize various predictive models for assessing the mechanical properties of these photovoltaic films. Finally, the future challenges and perspectives for stretchy OSCs are explored.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 9","pages":"3042 - 3059"},"PeriodicalIF":7.4,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028289","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":"Balanced sensitivity and detection range in ion-selective OECTs by gate bias modulation","authors":"Kun Xu \u0000 (,&nbsp;),&nbsp;Zhongyou Lu \u0000 (,&nbsp;),&nbsp;Yixin Zhou \u0000 (,&nbsp;),&nbsp;Yujing Zhang \u0000 (,&nbsp;),&nbsp;Li Wang \u0000 (,&nbsp;),&nbsp;Dan Zhao \u0000 (,&nbsp;),&nbsp;Jianhua Chen \u0000 (,&nbsp;),&nbsp;Liang-Wen Feng \u0000 (,&nbsp;),&nbsp;Yuhua Cheng \u0000 (,&nbsp;),&nbsp;Libing Bai \u0000 (,&nbsp;),&nbsp;Wei Huang \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-3420-x","DOIUrl":"10.1007/s40843-025-3420-x","url":null,"abstract":"<div><p>Due to their biocompatibility, low operating voltage, and substantial signal amplification capability, ion-selective organic electrochemical transistors (IS-OECTs) show tremendous potential for biofluid-related ion detections. However, IS-OECT performances are severely limited by the nonlinear correlation of effective ion-selective membranes (ISMs) potential and effective gate bias demonstrating maximum transconductance (<i>g</i>_m), which results in tremendously unstable and degraded current sensitivity (<i>S</i>_I) in wide ion concentration ranges. Here, by introducing gate bias modulation to ensure the IS-OECTs yield consistent high <i>g</i>_m in all ion concentration subranges, a wider detection range and an ultrahigh sensitivity can be simultaneously achieved. Specifically, ascribed to the gate bias modulated from 0.7 to 0.95 V, Ca²⁺ and NH₄⁺-IS-OECTs based on small footprint (640 µm²) n-type vertical OECTs (vOECTs) possess approximately 3 mA/dec over a wide ionic range of 10⁻⁵ to 10⁻¹ M, respectively, which is the highest <i>S</i>_I when compared to ever reported for Ca²⁺ and NH₄⁺ ion-sensitive transistors. This work introduces a general approach for ultrahigh sensitivity and wide detection range IS-OECTs, and could be extended to other transistor-based biomolecule and ion sensors, offering valuable insights for advancing high-performance bioelectronics.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 8","pages":"2910 - 2918"},"PeriodicalIF":7.4,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162003","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":"Graphic visualization and recognition system based on electroluminescent devices and robotic arm","authors":"Wandi Chen \u0000 (,&nbsp;),&nbsp;Haonan Wang \u0000 (,&nbsp;),&nbsp;Hao Qian \u0000 (,&nbsp;),&nbsp;Xiaoqing Huo \u0000 (,&nbsp;),&nbsp;Jizhong Deng \u0000 (,&nbsp;),&nbsp;Tian Tang \u0000 (,&nbsp;),&nbsp;Zhiyi Wu \u0000 (,&nbsp;),&nbsp;Chaoxing Wu \u0000 (,&nbsp;),&nbsp;Yongai Zhang \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-3428-6","DOIUrl":"10.1007/s40843-025-3428-6","url":null,"abstract":"<div><p>With the acceleration of digitization and informatization, graphic visualization has already become an indispensable tool and medium in modern society. Electroluminescent devices (EL), which refer to certain materials that release photons through internal electron leaps when excited by an electric field, can construct low-cost and flexible multispectral image sensors. In this paper, we propose an alternating current EL device based on a pyramidal conical structure luminescent layer and design a luminescent display image recognition system in combination with a convolutional neural network. The system can recognize the shapes of objects made of different materials while effectively reducing the influence of environmental factors on recognition accuracy, thus achieving a more efficient and reliable image recognition function. Multi-spectral imaging technology provides rich spectral information for the robot, which can provide richer and more comprehensive environment perception capability to meet the needs of diverse dynamic application scenarios. With the significant advantages of EL technology-based image recognition devices, such as high brightness, high contrast, low power consumption, long life, flexibility, and multispectral imaging capability, robots can adapt to complex dynamic environments and achieve higher recognition accuracy and operational efficiency.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 8","pages":"2706 - 2713"},"PeriodicalIF":7.4,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161998","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":"Ferromagnetism enhancing thermoelectric transport properties in dilute magnetic semiconductor Ge1−xMnxTe","authors":"Xiaofeng Chen \u0000 (,&nbsp;),&nbsp;Ping Wei \u0000 (,&nbsp;),&nbsp;Tiantian Chen \u0000 (,&nbsp;),&nbsp;Xianfeng Ye \u0000 (,&nbsp;),&nbsp;Junjie Ge \u0000 (,&nbsp;),&nbsp;Zhixin Tang \u0000 (,&nbsp;),&nbsp;Wanting Zhu \u0000 (,&nbsp;),&nbsp;Xiaolei Nie \u0000 (,&nbsp;),&nbsp;Danqi He \u0000 (,&nbsp;),&nbsp;Mingrui Liu \u0000 (,&nbsp;),&nbsp;Wenyu Zhao \u0000 (,&nbsp;),&nbsp;Qingjie Zhang \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-3446-2","DOIUrl":"10.1007/s40843-025-3446-2","url":null,"abstract":"<div><p>IV–VI dilute magnetic semiconductor Mn-doped GeTe has garnered significant attention for its promising thermoelectric (TE) properties in the mid-temperature range. However, the impact of Mn on the transport properties of GeTe remains ambiguous. This study investigates the critical role of Mn doping in optimizing the TE properties of Ge_1−<i>x</i>Mn_<i>x</i>Te alloys. The transport properties, magnetic properties, and lattice vibration behavior were characterized in the temperature range of 50–300 K. It was demonstrated that the incorporation of Mn significantly reduces carrier concentration and amplifies electron scattering, thereby optimizing the power factor with a two-fold increment. Apart from the enhanced alloy scattering, Mn doping causes the softening of optical phonons and reduced phonon group velocity, therefore, a remarkable suppression in lattice thermal conductivity. Furthermore, the ferromagnetism of Mn contributes to the TE performance of Ge_1−<i>x</i>Mn_<i>x</i>Te as it benefits from the depressed phonon modes of magnetic excitation. This work provides a strategic insight into optimizing TE performance for advancing GeTe-based dilute magnetic semiconductors.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 8","pages":"2841 - 2849"},"PeriodicalIF":7.4,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161999","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":"Confined electrophoretic deposition of uniformly dispersed nanoparticles-integrated hydrogels with enhanced mechanical and enzyme-like properties for antibacterial therapy","authors":"Yang Guo \u0000 (,&nbsp;),&nbsp;Xiaowei Li \u0000 (,&nbsp;),&nbsp;Zhihui Niu \u0000 (,&nbsp;),&nbsp;Guangwu Wen \u0000 (,&nbsp;),&nbsp;Haijun Zhang \u0000 (,&nbsp;),&nbsp;Xia Wang \u0000 (,&nbsp;),&nbsp;Dechao Niu \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-3434-y","DOIUrl":"10.1007/s40843-025-3434-y","url":null,"abstract":"<div><p>Nanoparticle-integrated hydrogels leverage favorable properties of both hydrogels and nanoparticles to create new functional materials for attractive applications. However, traditional integrated approaches can not guarantee the uniformity and full exposure of incorporated nanoparticles, resulting in unsatisfactory performance. In this work, the integrated hydrogel network uniformly deposited with MnSiO₃ nanoparticles (defined as MnSiO₃ based E-gels) has been successfully prepared by a confined electrophoretic deposition (EPD) strategy. The density of cross-linking points and the electrostatic attraction effects of the hydrogel network at the cathode significantly affect the deposition behavior of nanoparticles. The confined EPD strategy exhibits extensive versatility and convenience, enabling the ultra-uniform deposition of a series of nanoparticles (Ag, ZnO, NiO, Fe₃O₄, MoS₂, MnO₂, CuO and ZIF-8) with positive charges within the hydrogel micro-pores within one minute. Equidistant distribution of nanoparticles under the electrostatic field with better dispersity and higher binding stability exhibits significant advantages for the nano-integrated hydrogels. As expected, the mechanical strength, adhesion property, enzyme-like activity, <i>in vitro</i> and <i>in vivo</i> bacterial inhibition effects were significantly improved compared with those of the conventional hydrogels. Therefore, the E-gels prepared by the confined EPD strategy provide a promising and versatile protocol for high-efficiency integration of polymer-based hydrogel networks and functional nanoparticles for attractive applications.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 8","pages":"2940 - 2951"},"PeriodicalIF":7.4,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162002","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":"HF-free synthesis of high-entropy MXene-PVA composite film and its flexible nanogenerator","authors":"Fumei Yang \u0000 (,&nbsp;),&nbsp;Kam Lin Chan \u0000 (,&nbsp;),&nbsp;Zehan Wu \u0000 (,&nbsp;),&nbsp;Fangqing Zhao \u0000 (,&nbsp;),&nbsp;Man Chung Wong \u0000 (,&nbsp;),&nbsp;Sin-Yi Pang \u0000 (,&nbsp;),&nbsp;Jianhua Hao \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-3445-x","DOIUrl":"10.1007/s40843-025-3445-x","url":null,"abstract":"<div><p>MXene exhibits notable piezoelectric properties, making it a promising material for high-performance piezoelectric nanogenerators (PENGs) in next-generation smart wearable devices and bioelectronics. However, current MXene-based PENGs face challenges such as insufficient mechanical robustness, low piezoelectric response, and limited long-term functionality. These limitations primarily stem from the small effective area and low strain levels of MXene nanosheets. Here, we constructed a high-entropy TiVCrMoC₃T_<i>x</i> MXene composite film by leveraging strong hydrogen bonding interactions between MXene and polyvinyl alcohol (PVA), which was further developed into a self-powered flexible nanogenerator. The resulting device exhibited a significant piezoresponse with output signals of 500 mV and 790 pA under a compressive force of 3.47 N, along with considerable long-term functionality over 1500 cycles. Moreover, a hydrofluoric-free etching approach was employed to synthesize the high-entropy MXene nanosheets, which ensures the safety and biocompatibility for bioelectronics applications. This work highlights the potential of high-entropy MXene for sustainable applications in wearable electronics and energy harvesting.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 8","pages":"2860 - 2867"},"PeriodicalIF":7.4,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40843-025-3445-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161547","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}

{"title":"Repurposing antihistamine to chemotherapy via a molecular delivery platform co-targeting mitochondria and endoplasmic reticulum","authors":"Ling-Li Wang \u0000 (,&nbsp;),&nbsp;Ming-Hua Zheng \u0000 (,&nbsp;),&nbsp;Jing-Yi Jin \u0000 (,&nbsp;),&nbsp;Shoujun Zhu \u0000 (,&nbsp;),&nbsp;Songling Zhang \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-3447-4","DOIUrl":"10.1007/s40843-025-3447-4","url":null,"abstract":"<div><p>Drug distribution in cells depends on the partition nature determined by its chemical structure, which could influence drug concentration and efficacy. Conversely, precise delivery of a drug to the specific condensates in cells, such as organelles, means a distinct way to remodel the drug action. We here introduce an unprecedented molecular delivery platform with an accurate loading capacity of a drug, able to simultaneously target mitochondria (Mito) and endoplasmic reticulum (ER) while releasing the parent drug <i>in situ</i>. For our proof of concept, we used desloratadine (Des), a common anti-allergic drug, as the parent drug to develop a delivery platform (DDY) for chemotherapy. DDY can respond to the glutathione (GSH) levels, allowing for the selective release of Des in Mito and ER in cancer cells, which have higher GSH concentrations than normal cells. The release of Des in Mito and ER effectively and selectively induces tumor cells to ferroptosis while causing minimal toxicity to normal cells. DDY exhibits a satisfied chemotherapy efficacy in xenograft and metastasis cancer models, which should originate from the effects of Des in the two organelles. The result demonstrates the potential for developing chemotherapy from a currently approved drug with little anti-cancer activity through a precise distribution of it to organelles, significantly broadening the space of drug candidates for future chemotherapy.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 8","pages":"2952 - 2961"},"PeriodicalIF":7.4,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161550","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":"Novel high-entropy polymers with superior capacitive energy storage","authors":"Yuan-Hua Lin","doi":"10.1007/s40843-025-3402-7","DOIUrl":"10.1007/s40843-025-3402-7","url":null,"abstract":"","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 10","pages":"3843 - 3844"},"PeriodicalIF":7.4,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145248164","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":"Flexible intelligent sensing patches for augmented tactile and thermal perception","authors":"Ruilai Wei \u0000 (,&nbsp;),&nbsp;Junling Zhang \u0000 (,&nbsp;),&nbsp;Haotian Li \u0000 (,&nbsp;),&nbsp;Tianci Huang \u0000 (,&nbsp;),&nbsp;Xiaopeng Wang \u0000 (,&nbsp;),&nbsp;Zhirong Liu \u0000 (,&nbsp;),&nbsp;Zhao Li \u0000 (,&nbsp;),&nbsp;Wei Song \u0000 (,&nbsp;),&nbsp;Xiaobing Fu \u0000 (,&nbsp;),&nbsp;Sha Huang \u0000 (,&nbsp;),&nbsp;Qilin Hua \u0000 (,&nbsp;),&nbsp;Zuqing Yuan \u0000 (,&nbsp;),&nbsp;Guozhen Shen \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-3440-2","DOIUrl":"10.1007/s40843-025-3440-2","url":null,"abstract":"<div><p>Inspired by the multimodal perception of human skin, flexible sensors are advancing intelligent sensing systems in healthcare and robotics. Pressure-temperature bimodal sensing is crucial for enhanced environmental perception and cross-domain applications. However, critical challenges remain in interference suppression and effective integration for augmented tactile and thermal perception. Here, we propose an interference-free flexible intelligent sensing patch that is composed of a laser-patterned pressure sensor and a thermistor. The patch demonstrates a large pressure detection range of 8 Pa to 220 kPa with a rapid response time of 50 ms, and a high temperature-sensing resolution of 0.01 °C at the range of 10–50 °C. Additionally, it can maintain highly stable performance under 150° bending deformation and 10% tensile strain. Furthermore, we built an integrated real-time processing platform to demonstrate its versatility through continuous, non-invasive monitoring for wrist pulse and epidermis temperature. Impressively, the patch can enhance real-time tactile feedback for soft robotic grippers during object manipulation, achieving tactile recognition with an accuracy of 94.09% for ten distinct objects. Intelligent sensing patches for augmented tactile and thermal perception hold promises for delivering precise and natural experiences while driving innovation and advancement in artificial prosthetics, intelligent robotics, wearable devices, and health monitoring.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 8","pages":"2819 - 2827"},"PeriodicalIF":7.4,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161549","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":"Growth of wafer-scale two-dimensional ferroelectric CuCrS2 films","authors":"Kun Yu \u0000 (,&nbsp;),&nbsp;Hui Wang \u0000 (,&nbsp;),&nbsp;Weilin Liu \u0000 (,&nbsp;),&nbsp;Zihao Fu \u0000 (,&nbsp;),&nbsp;Yichen Feng \u0000 (,&nbsp;),&nbsp;Wenna Tang \u0000 (,&nbsp;),&nbsp;Lu Han \u0000 (,&nbsp;),&nbsp;Yuefeng Nie \u0000 (,&nbsp;),&nbsp;Dong Li \u0000 (,&nbsp;),&nbsp;Zhenjia Zhou \u0000 (,&nbsp;),&nbsp;Jun Li \u0000 (,&nbsp;),&nbsp;Anlian Pan \u0000 (,&nbsp;),&nbsp;Libo Gao \u0000 (,&nbsp;)","doi":"10.1007/s40843-025-3424-6","DOIUrl":"10.1007/s40843-025-3424-6","url":null,"abstract":"<div><p>Two-dimensional (2D) ferroelectrics with high Curie temperature (<i>T</i>_c) exhibit stable ferroelectricity at the nanoscale and possess significant applications in the miniaturization of ferroelectric devices. However, controllable growth of wafer-scale 2D ferroelectric films with desired thickness is still rarely reported. In this study, we develop a two-step vapour deposition method to grow wafer-scale 2D CuCrS₂ ferroelectric films with a uniform thickness from 2 to 10 nm. These films possess a non-centrosymmetric structure with a 3R stacking sequence, exhibit ferroelectric polarizations, and the <i>T</i>_c of CuCrS₂ is higher than room temperature. The constructed electronic devices exhibit the characteristics of ferroelectric memristor, which opens up applications for ferroelectric functional devices.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"68 8","pages":"2868 - 2875"},"PeriodicalIF":7.4,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160603","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}