Nature Materials最新文献_第7页

Stiff and self-healing hydrogels by polymer entanglements in co-planar nanoconfinement

IF 37.2 1区材料科学

Nature Materials Pub Date : 2025-03-07 DOI: 10.1038/s41563-025-02146-5

Chen Liang, Volodymyr Dudko, Olena Khoruzhenko, Xiaodan Hong, Zhong-Peng Lv, Isabell Tunn, Muhammad Umer, Jaakko V. I. Timonen, Markus B. Linder, Josef Breu, Olli Ikkala, Hang Zhang

{"title":"Stiff and self-healing hydrogels by polymer entanglements in co-planar nanoconfinement","authors":"Chen Liang, Volodymyr Dudko, Olena Khoruzhenko, Xiaodan Hong, Zhong-Peng Lv, Isabell Tunn, Muhammad Umer, Jaakko V. I. Timonen, Markus B. Linder, Josef Breu, Olli Ikkala, Hang Zhang","doi":"10.1038/s41563-025-02146-5","DOIUrl":"10.1038/s41563-025-02146-5","url":null,"abstract":"Many biological tissues are mechanically strong and stiff but can still heal from damage. By contrast, synthetic hydrogels have not shown comparable combinations of properties, as current stiffening approaches inevitably suppress the required chain/bond dynamics for self-healing. Here we show a stiff and self-healing hydrogel with a modulus of 50 MPa and tensile strength up to 4.2 MPa by polymer entanglements in co-planar nanoconfinement. This is realized by polymerizing a highly concentrated monomer solution within a scaffold of fully delaminated synthetic hectorite nanosheets, shear oriented into a macroscopic monodomain. The resultant physical gels show self-healing efficiency up to 100% despite the high modulus, and high adhesion shear strength on a broad range of substrates. This nanoconfinement approach allows the incorporation of novel functionalities by embedding colloidal materials such as MXenes and can be generalized to other polymers and solvents to fabricate stiff and self-healing gels for soft robotics, additive manufacturing and biomedical applications. Mechanical stiffness and self-healing properties are difficult to combine in synthetic hydrogels. Using polymer entanglements in co-planar nanoconfinement, stiff and self-healing hydrogels are fabricated, with applications in biology and engineering.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"24 4","pages":"599-606"},"PeriodicalIF":37.2,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41563-025-02146-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143570153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A facile approach for generating ordered oxygen vacancies in metal oxides

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-03-07 DOI: 10.1038/s41563-025-02171-4

Kexin Chen, Xuanyi Yuan, Zhaobo Tian, Mingchu Zou, Yifei Yuan, Zhanglin Chen, Qinghua Zhang, YuYang Zhang, Xin Jin, Tianpin Wu, Reza Shahbazian-Yassar, Guanghua Liu

引用次数: 0

Vapour–liquid–solid–solid growth of two-dimensional non-layered β-Bi2O3 crystals with high hole mobility

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-03-07 DOI: 10.1038/s41563-025-02141-w

Yunhai Xiong, Duo Xu, Yousheng Zou, Lili Xu, Yujie Yan, Jianghua Wu, Chen Qian, Xiufeng Song, Kairui Qu, Tong Zhao, Jie Gao, Jialin Yang, Kai Zhang, Shengli Zhang, Peng Wang, Xiang Chen, Haibo Zeng

{"title":"Vapour–liquid–solid–solid growth of two-dimensional non-layered β-Bi2O3 crystals with high hole mobility","authors":"Yunhai Xiong, Duo Xu, Yousheng Zou, Lili Xu, Yujie Yan, Jianghua Wu, Chen Qian, Xiufeng Song, Kairui Qu, Tong Zhao, Jie Gao, Jialin Yang, Kai Zhang, Shengli Zhang, Peng Wang, Xiang Chen, Haibo Zeng","doi":"10.1038/s41563-025-02141-w","DOIUrl":"https://doi.org/10.1038/s41563-025-02141-w","url":null,"abstract":"Currently, p-type two-dimensional (2D) materials lag behind n-type ones in both quantity and performance, hindering their use in advanced p-channel transistors and complementary logic circuits. Non-layered materials, which make up 95% of crystal structures, hold the potential for superior p-type 2D materials but remain challenging to synthesize. Here we show a vapour–liquid–solid–solid growth of atomically thin (<1 nm), high-quality, non-layered 2D β-Bi2O3 crystals on a SiO2/Si substrate. These crystals form via a transformation from layered BiOCl intermediates. We further realize 2D β-Bi2O3 transistors with room-temperature hole mobility and an on/off current ratio of 136.6 cm2 V−1 s−1 and 1.2 × 108, respectively. The p-type nature is due to the strong suborbital hybridization of Bi 6s26p3 with O 2p4 at the crystal’s M-point valence band maximum. Our work can be used as a reference that adds more 2D non-layered materials to the 2D toolkit and shows 2D β-Bi2O3 to be promising candidate for future electronics.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"33 1","pages":""},"PeriodicalIF":41.2,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143570152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Rapid growth of inch-sized lanthanide oxychloride single crystals

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-03-05 DOI: 10.1038/s41563-025-02142-9

Zhuofeng Shi, Wei Guo, Saiyu Bu, Lingmiao Ma, Zhaoning Hu, Yaqi Zhu, Haotian Wu, Xiaohui Chen, Xiaodong Zhang, Kostya S. Novoselov, Boyang Mao, Ning Kang, Li Lin

{"title":"Rapid growth of inch-sized lanthanide oxychloride single crystals","authors":"Zhuofeng Shi, Wei Guo, Saiyu Bu, Lingmiao Ma, Zhaoning Hu, Yaqi Zhu, Haotian Wu, Xiaohui Chen, Xiaodong Zhang, Kostya S. Novoselov, Boyang Mao, Ning Kang, Li Lin","doi":"10.1038/s41563-025-02142-9","DOIUrl":"https://doi.org/10.1038/s41563-025-02142-9","url":null,"abstract":"The layered lanthanide oxychloride (LnOCl) family, featuring a low equivalent oxide thickness, high breakdown field and magnetic ordering properties, holds great promise for next-generation van der Waals devices. However, the exploitation of LnOCl materials has been hindered by a lack of reliable methods for growing their single-crystalline phases. Here we achieved the growth of inch-sized bulk LnOCl single crystals and single-crystalline thin films with thickness down to the monolayer in a few hours. The monolayer LnOCl exhibits ultralow equivalent oxide thicknesses, for instance, LaOCl and SmOCl have values of 0.25 and 0.34, respectively. Furthermore, using LnOCl as a dielectric in graphene devices, we demonstrate wafer-scale enhancement of carrier mobility and a well-developed quantum Hall effect. The induced strong magnetic proximity effect by SmOCl and DyOCl enables efficient interfacial charge transfer with magnetic exchange coupling This work provides a general strategy for synthesizing large-sized single-crystalline layered materials, enriching the library of ultralow-equivalent-oxide-thickness dielectric materials, and two-dimensional magnetic materials with induced strong magnetic proximity effect.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"18 1","pages":""},"PeriodicalIF":41.2,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143546745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Surfactant-induced hole concentration enhancement for highly efficient perovskite light-emitting diodes

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-03-05 DOI: 10.1038/s41563-025-02123-y

Jiajun Qin, Jia Zhang, Xianjie Liu, Yu Wang, Heyong Wang, Utkarsh Singh, Yanyan Wang, Haoliang Wang, Tianxiang Hu, Yiqiang Zhan, Yipeng Tang, Bin Hu, Constantin Bach, Carsten Deibel, Wei-Xin Ni, Sergei I. Simak, Igor A. Abrikosov, Mats Fahlman, Feng Gao

{"title":"Surfactant-induced hole concentration enhancement for highly efficient perovskite light-emitting diodes","authors":"Jiajun Qin, Jia Zhang, Xianjie Liu, Yu Wang, Heyong Wang, Utkarsh Singh, Yanyan Wang, Haoliang Wang, Tianxiang Hu, Yiqiang Zhan, Yipeng Tang, Bin Hu, Constantin Bach, Carsten Deibel, Wei-Xin Ni, Sergei I. Simak, Igor A. Abrikosov, Mats Fahlman, Feng Gao","doi":"10.1038/s41563-025-02123-y","DOIUrl":"https://doi.org/10.1038/s41563-025-02123-y","url":null,"abstract":"It is widely acknowledged that constructing small injection barriers for balanced electron and hole injections is essential for light-emitting diodes (LEDs). However, in highly efficient LEDs based on metal halide perovskites, a seemingly large hole injection barrier is usually observed. Here we rationalize this high efficiency through a surfactant-induced effect where the hole concentration at the perovskite surface is enhanced to enable sufficient bimolecular recombination pathways with injected electrons. This effect originates from the additive engineering and is verified by a series of optical and electrical measurements. In addition, surfactant additives that induce an increased hole concentration also significantly improve the luminescence yield, an important parameter for the efficient operation of perovskite LEDs. Our results not only provide rational design rules to fabricate high-efficiency perovskite LEDs but also present new insights to benefit the design of other perovskite optoelectronic devices.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"53 1","pages":""},"PeriodicalIF":41.2,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143546744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Reflections on progress in organic photovoltaics

IF 37.2 1区材料科学

Nature Materials Pub Date : 2025-03-04 DOI: 10.1038/s41563-025-02161-6

Wei Fan

引用次数: 0

The role of non-fullerene acceptors continues

IF 37.2 1区材料科学

Nature Materials Pub Date : 2025-03-04 DOI: 10.1038/s41563-025-02177-y

引用次数: 0

Non-fullerene electron-transporting materials for high-performance and stable perovskite solar cells

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-03-04 DOI: 10.1038/s41563-025-02163-4

Kui Feng, Guoliang Wang, Qing Lian, Sergio Gámez-Valenzuela, Bolin Li, Riqing Ding, Wanli Yang, Keli Wang, Jie Zeng, Yong Zhang, Sang Young Jeong, Baomin Xu, Anita Ho-Baillie, Han Young Woo, Antonio Facchetti, Xugang Guo

{"title":"Non-fullerene electron-transporting materials for high-performance and stable perovskite solar cells","authors":"Kui Feng, Guoliang Wang, Qing Lian, Sergio Gámez-Valenzuela, Bolin Li, Riqing Ding, Wanli Yang, Keli Wang, Jie Zeng, Yong Zhang, Sang Young Jeong, Baomin Xu, Anita Ho-Baillie, Han Young Woo, Antonio Facchetti, Xugang Guo","doi":"10.1038/s41563-025-02163-4","DOIUrl":"https://doi.org/10.1038/s41563-025-02163-4","url":null,"abstract":"The electron-transporting material (ETM) is a key component of perovskite solar cells (PSCs) optimizing electron extraction from perovskite to cathode. Fullerenes, specifically C60 and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM), have been used as the benchmark ETMs for inverted PSCs. However, C60 is restricted to thermal evaporation, and PCBM suffers from poor photothermal stability and suboptimal electron transport, limiting their PSC applications. Here a solution-processable non-fullerene ETM, cyano-functionalized bithiophene imide dimer (CNI2)-based polymer (PCNI2-BTI), holds multiple advantages, including excellent photothermal stability, efficient electron transport and improved interaction with the perovskite layer. Consequently, inverted PSCs incorporating PCNI2-BTI deliver an outstanding power conversion efficiency (PCE) of 26.0% (certified 25.4%) and remarkable operational stability, with a T80 approaching 1,300 h under ISOS-L-3. Moreover, we synthesize three additional CNI2-based polymer ETMs, yielding an average PCE of >25% in PSCs. These findings demonstrate unprecedented potential of non-fullerene ETMs enabling high-performance and stable PSCs.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"52 1","pages":""},"PeriodicalIF":41.2,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143538415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Lab-to-fab progress for organic photovoltaics

IF 37.2 1区材料科学

Nature Materials Pub Date : 2025-03-04 DOI: 10.1038/s41563-025-02160-7

Wei Fan

引用次数: 0

Frozen non-equilibrium dynamics of exciton Mott insulators in moiré superlattices

IF 37.2 1区材料科学

Nature Materials Pub Date : 2025-03-03 DOI: 10.1038/s41563-025-02135-8

Shibin Deng, Heonjoon Park, Jonas Reimann, Jonas M. Peterson, Daria D. Blach, Meng-Jia Sun, Tengfei Yan, Dewei Sun, Takashi Taniguchi, Kenji Watanabe, Xiaodong Xu, Dante M. Kennes, Libai Huang

{"title":"Frozen non-equilibrium dynamics of exciton Mott insulators in moiré superlattices","authors":"Shibin Deng, Heonjoon Park, Jonas Reimann, Jonas M. Peterson, Daria D. Blach, Meng-Jia Sun, Tengfei Yan, Dewei Sun, Takashi Taniguchi, Kenji Watanabe, Xiaodong Xu, Dante M. Kennes, Libai Huang","doi":"10.1038/s41563-025-02135-8","DOIUrl":"10.1038/s41563-025-02135-8","url":null,"abstract":"Moiré superlattices, such as those formed from transition metal dichalcogenide heterostructures, have emerged as an exciting platform for exploring quantum many-body physics. They have the potential to serve as solid-state analogues to ultracold gases for quantum simulations. A key open question is the coherence and dynamics of the quantum phases arising from photoexcited moiré excitons, particularly amid dissipation. Here we use transient photoluminescence and ultrafast reflectance microscopy to image non-equilibrium exciton phase transitions. Counterintuitively, experimental results and theoretical simulations indicate that strong long-range dipolar repulsion freezes the motion of the Mott insulator phase for over 70 ns. In mixed electron–exciton lattices, reduced dipolar interactions lead to diminished freezing dynamics. These findings challenge the prevailing notion that repulsion disperses particles, whereas attraction binds them. The observed phenomenon of frozen dynamics due to strong repulsive interactions is characteristic of highly coherent systems, a feature previously realized exclusively in ultracold gases. The authors image non-equilibrium exciton phase-transition dynamics in moiré superlattices, revealing how strong long-range dipolar repulsion freezes the motion of the Mott insulator over a timescale of tens of nanoseconds.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"24 4","pages":"527-534"},"PeriodicalIF":37.2,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143532679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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