Science Bulletin最新文献_第8页

High-performance tin-based perovskite field-effect transistors realized by improving film morphology via bifunctional additives. 通过双功能添加剂改善薄膜形貌，实现了高性能的锡基钙钛矿场效应晶体管。

IF 21.1 1区综合性期刊

Science Bulletin Pub Date : 2025-09-08 DOI: 10.1016/j.scib.2025.09.009

Kai Zhang, Xue Wang, Xiaoyu Zhang, Haibo Wang, Weitao Zheng, Lijun Zhang

{"title":"High-performance tin-based perovskite field-effect transistors realized by improving film morphology via bifunctional additives.","authors":"Kai Zhang, Xue Wang, Xiaoyu Zhang, Haibo Wang, Weitao Zheng, Lijun Zhang","doi":"10.1016/j.scib.2025.09.009","DOIUrl":"https://doi.org/10.1016/j.scib.2025.09.009","url":null,"abstract":"Tin-based perovskites have emerged as promising semiconductor materials for high-performance field-effect transistors (FETs). However, poor film quality of tin-based perovskites seriously impedes carrier transport and degrades operational stability of the FETs. In this study, we propose a bifunctional additive strategy employing 4-fluorophenethylamine acetate (FPEAAc) to regulate the crystallization of Sn-based perovskites, resulting in preferentially oriented, fully covered and large-grained perovskite films. The FPEA+ cations induced the templating growth of perovskite octahedron, while Ac- anions retard the crystallization growth to promote uniform films. To further enhance grain size while maintaining pinhole-free morphology, propylammonium acetate (PAAc) additive is introduced as an auxiliary additive to further delay crystal growth. The optimized FETs demonstrate a high hole mobility of ∼40 cm2 V-1 s-1 along with excellent operational stability. This work establishes a co-additive strategy that precisely regulates tin-based perovskite crystallization through templated growth coupled with retarded crystallization, offering novel insights into regulating the film growth of Sn-based perovskites, and thereby advancing the development of high-performance perovskite FETs.","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":21.1,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145249164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nanofibrous core/nanoporous sheath structured ultra-flexible ceramic aerogels for thermal superinsulation. 纳米纤维芯/纳米孔鞘结构超柔性陶瓷气凝胶用于超保温。

IF 21.1 1区综合性期刊

Science Bulletin Pub Date : 2025-09-08 DOI: 10.1016/j.scib.2025.09.002

Dizhou Liu, Cong Li, Han Zhao, Hongxuan Yu, Jingran Guo, Shixuan Dang, Duola Wang, Chuanyun Song, Yingde Zhao, Zhengli Yan, Yuanpeng Deng, Jiali Chen, Tiande Lin, Wenshuai Chen, Hui Li, Xiang Xu

{"title":"Nanofibrous core/nanoporous sheath structured ultra-flexible ceramic aerogels for thermal superinsulation.","authors":"Dizhou Liu, Cong Li, Han Zhao, Hongxuan Yu, Jingran Guo, Shixuan Dang, Duola Wang, Chuanyun Song, Yingde Zhao, Zhengli Yan, Yuanpeng Deng, Jiali Chen, Tiande Lin, Wenshuai Chen, Hui Li, Xiang Xu","doi":"10.1016/j.scib.2025.09.002","DOIUrl":"https://doi.org/10.1016/j.scib.2025.09.002","url":null,"abstract":"Thermal superinsulation, arising from nanoporous aerogels with pore sizes < 70 nm, involves ultralow heat conduction with a thermal conductivity lower than that of stationary air (24 mW·m-1·K-1). However, the inherently weak necklace connection mechanism between building units and the confined deformation space within nanopores result in the intrinsic brittleness of these materials. Additionally, improvements in their mechanical flexibility typically result in compromised thermal insulation performance. To address this limitation, we herein report a core-sheath structure design of La2Y0.4TiZr2O9.6 ceramic aerogel (CSCA) featuring a nanofibrous core framework for flexible deformation and a nanoporous aerogel sheath for thermal superinsulation. The resulting aerogel demonstrates remarkable mechanical flexibility with a compressive strain of up to 80 % , a fracture strain of up to 21.9 % and a bending strain of up to 100 %, as well as thermal superinsulation with a conductivity of 21.96 mW·m-1·K-1 at 26 °C and remains stable at working temperatures exceeding 1300 °C. Ultimately, proposed CSCA constitutes a fundamentally new approach in structure design to resolving the formidable mechanical-thermal tradeoff of aerogels, and it offers promising material configuration for further advancements in thermal superinsulation.","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":21.1,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145273315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Intensified rainfall overrides vegetation greening in driving erosion and carbon loss on the Tibetan Plateau.

IF 21.1 1区综合性期刊

Science Bulletin Pub Date : 2025-09-08 DOI: 10.1016/j.scib.2025.09.005

Rui Deng, Dongfeng Li, Yi Zhao, Desmond E Walling, Panos Panagos, Pasquale Borrelli, Philippe Ciais, Yuefei Huang, Yuanyuan Bai, Sergey Chalov, Valentin N Golosov, Xudong Fu, Chiyuan Miao, Jiahua Wei, Jinren Ni

引用次数: 0

Liquid Ga nanodroplet-templated heteroepitaxy of MAPbI₃ for high-efficiency printable mesoscopic perovskite solar cells. 液态Ga纳米微滴模板MAPbI3异质外延制备高效可印刷介观钙钛矿太阳能电池。

IF 21.1 1区综合性期刊

Science Bulletin Pub Date : 2025-09-08 DOI: 10.1016/j.scib.2025.09.006

Jianhong Zhao, Tong Zhou, Tianwei He, Nan Yang, Mingpeng Chen, Hang Yang, Jin Zhang, Yumin Zhang, Wenhua Zhang, Guangzhi Hu, Qingju Liu

{"title":"Liquid Ga nanodroplet-templated heteroepitaxy of MAPbI3 for high-efficiency printable mesoscopic perovskite solar cells.","authors":"Jianhong Zhao, Tong Zhou, Tianwei He, Nan Yang, Mingpeng Chen, Hang Yang, Jin Zhang, Yumin Zhang, Wenhua Zhang, Guangzhi Hu, Qingju Liu","doi":"10.1016/j.scib.2025.09.006","DOIUrl":"https://doi.org/10.1016/j.scib.2025.09.006","url":null,"abstract":"Precise control over microstructure and crystallinity of perovskite films is pivotal for achieving high-performance solar cells. However, realizing large-grained and preferentially oriented perovskite crystals remains particularly challenging in printable mesoscopic architectures. Herein, we present a liquid-metal-enabled heteroepitaxial strategy to regulate MAPbI3 crystallization on Ga2O3 surfaces derived from Ga nanodroplets. Structural modeling and atomic-resolution transmission electron microscope (TEM) analysis reveal an exceptional lattice match between the (110) planes of MAPbI3 and the exposed Ga2O3 facets, with an ultralow mismatch of merely 0.32 %. This near-perfect lattice alignment drives the formation of orientation-controlled MAPbI3 crystals within the mesoporous scaffold. Moreover, the epitaxial interface establishes type-II band alignment that accelerates charge extraction while suppressing interfacial recombination. The resultant printable mesoscopic perovskite solar cells achieve a champion power conversion efficiency (PCE) of 20.2 % (AM1.5G), representing a 16 % enhancement over conventional non-epitaxial counterparts. Crucially, the devices demonstrate exceptional operational stability, retaining 97 % of initial PCE after 3000 h of maximum power point tracking under harsh conditions (55 ± 5 °C, 85 % RH).","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":21.1,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145102613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bidirectionally tuned C(sp³)-H and N-H photo-activation with Wurster-type covalent organic frameworks. wwurster型共价有机骨架双向调谐C(sp3)-H和N-H光活化。

IF 21.1 1区综合性期刊

Science Bulletin Pub Date : 2025-09-08 DOI: 10.1016/j.scib.2025.09.007

Tao-Yuan Yu, Qian Niu, Tao Jiang, Jing-Wen Shi, Qi Li, Qing Huang, Yifa Chen, Shun-Li Li, Ya-Qian Lan

引用次数: 0

Towards green chemistry from transformation of carbon dioxide and dinitrogen to value-added chemicals and fuels. 从二氧化碳和二氮转化为增值化学品和燃料的绿色化学。

IF 21.1 1区综合性期刊

Science Bulletin Pub Date : 2025-09-08 DOI: 10.1016/j.scib.2025.09.003

Shunhan Jia, Kang Zhao, Lijun Han, Xifei Ma, Suokun Shang, Hongyan Ni, Limin Wu, Xinning Song, Xiaofu Sun, Yanrong Liu, Xinjiang Cui, Buxing Han

{"title":"Towards green chemistry from transformation of carbon dioxide and dinitrogen to value-added chemicals and fuels.","authors":"Shunhan Jia, Kang Zhao, Lijun Han, Xifei Ma, Suokun Shang, Hongyan Ni, Limin Wu, Xinning Song, Xiaofu Sun, Yanrong Liu, Xinjiang Cui, Buxing Han","doi":"10.1016/j.scib.2025.09.003","DOIUrl":"https://doi.org/10.1016/j.scib.2025.09.003","url":null,"abstract":"The urgent need for sustainable chemical processes has driven the exploration of carbon dioxide (CO2) and dinitrogen (N2) as abundant, renewable feedstocks for producing value-added chemicals and fuels. This review focuses on the transformation of CO2 and N2, highlighting their significance in green chemistry. We begin by discussing the fundamental principles of green chemistry and the advantages of utilizing CO2 and N2 to mitigate greenhouse gas emissions and reduce reliance on fossil resources. Subsequently, the review examines advanced transformation pathways for CO2 conversion, including electrocatalytic reduction, photocatalytic processes, and thermochemical transformations, evaluating their efficiency and scalability. The reduction of N2 and nitrogen oxides (NOx) to ammonia (NH3) is explored, presenting innovative alternatives to the traditional Haber-Bosch process that offer improved energy efficiency and lower environmental impact. Furthermore, the synthesis of nitrogenous compounds beyond NH3 is discussed, highlighting the versatility of green NH3 in the production of diverse chemicals. A key focus is placed on integrating CO2 and N2 transformations through CN coupling reactions, enabling the direct formation of organic molecules with reduced environmental footprints. The review concludes by identifying current challenges and future directions, emphasizing the potential of catalytic technologies to foster a sustainable and resilient chemical industry.","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":21.1,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145079301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Divergent neural trajectories in young patients with major depressive episodes: longitudinal subtypes and their predictive value for treatment outcomes. 不同的神经轨迹在年轻患者重度抑郁发作：纵向亚型及其对治疗结果的预测价值。

IF 21.1 1区综合性期刊

Science Bulletin Pub Date : 2025-09-08 DOI: 10.1016/j.scib.2025.09.004

Jia Duan, Guangqi Wen, Lingwen Liu, Songbo Gu, Jingshuai Zhou, Jia Xu, Rongxin Zhu, Shaohua Hu, Peng Cao, Fei Wang

引用次数: 0

Eagle-eye-inspired neuromorphic synaptic transistor array with ultrabroad dynamic range for adaptive machine vision. 具有超宽动态范围的自适应机器视觉鹰眼启发神经形态突触晶体管阵列。

IF 21.1 1区综合性期刊

Science Bulletin Pub Date : 2025-09-08 DOI: 10.1016/j.scib.2025.09.010

Huchao Li, Di Liu, Zan Wang, Yang Liu, Yunfeng Deng, Huipeng Chen, Zhixin Hu, Deyang Ji, Dechao Geng, Wenping Hu

引用次数: 0

A jetted wandering massive black hole candidate in a dwarf galaxy. 矮星系中被喷散的大质量黑洞候选者。

IF 21.1 1区综合性期刊

Science Bulletin Pub Date : 2025-09-04 DOI: 10.1016/j.scib.2025.09.001

Yuanqi Liu, Tao An, Mar Mezcua, Yingkang Zhang, Ailing Wang, Jun Yang, Xiaopeng Cheng

引用次数: 0

Anion-mediated electrolyte engineering unlocks high-energy-density and long-cycling sulfur-based batteries at ultra-low N/P ratio. 阴离子介导的电解质工程实现了超低氮磷比下高能量密度、长循环的硫基电池。

IF 21.1 1区综合性期刊

Science Bulletin Pub Date : 2025-08-29 DOI: 10.1016/j.scib.2025.08.052

Huangwei Zhang, Yuluo Chen, Xiaoyu Ge, Kai Huang, Jiulin Wang, Jia-Qi Huang, Zhen Li, Yunhui Huang

{"title":"Anion-mediated electrolyte engineering unlocks high-energy-density and long-cycling sulfur-based batteries at ultra-low N/P ratio.","authors":"Huangwei Zhang, Yuluo Chen, Xiaoyu Ge, Kai Huang, Jiulin Wang, Jia-Qi Huang, Zhen Li, Yunhui Huang","doi":"10.1016/j.scib.2025.08.052","DOIUrl":"https://doi.org/10.1016/j.scib.2025.08.052","url":null,"abstract":"High energy density and long cycle life are considered to be incompatible in battery design. Lithium metal batteries often have high energy density but poor cycle stability, while graphite (Gr)-based batteries usually have long cycle life but are limited in energy density. Therefore, mixing lithium with Gr as the anode is expected to balance high energy density and long cycle life. Reducing the negative/positive areal capacity (N/P) ratio to less than 1 is the simplest means to achieve a hybrid anode. The battery with sulfurized poly(acrylonitrile) (SPAN) as the cathode and an ultra-low N/P ratio (N/P = 0.6) is expected to leverage the significant advantage of its cathode's energy density far exceeding that of traditional cathodes, while maintaining stable cycling performance. This makes it a highly promising battery system. Through the design of anion-mediated electrolyte engineering, the capacity retention rate of the SPAN||Gr pouch cell at N/P = 0.6 after 300 cycles was 92 %, and its energy density was increased by 24 % compared with that at N/P = 1.1, achieving a balance between energy density and cycling stability. This strategy establishes N/P engineering coupled with electrolyte design as a scalable paradigm for next-generation energy-dense batteries.","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":21.1,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145058216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0