ACS Nano最新文献_第2页

High-Fidelity Transfer of 2D Semiconductors and Electrodes for van der Waals Devices. 用于范德华器件的二维半导体和电极的高保真转移。

IF 15.8 1区材料科学

ACS Nano Pub Date : 2024-11-18 DOI: 10.1021/acsnano.4c10551

Lingxiao Yu, Minglang Gao, Qian Lv, Hanyuan Ma, Jingzhi Shang, Zheng-Hong Huang, Zheng Sun, Ting Yu, Feiyu Kang, Ruitao Lv

{"title":"High-Fidelity Transfer of 2D Semiconductors and Electrodes for van der Waals Devices.","authors":"Lingxiao Yu, Minglang Gao, Qian Lv, Hanyuan Ma, Jingzhi Shang, Zheng-Hong Huang, Zheng Sun, Ting Yu, Feiyu Kang, Ruitao Lv","doi":"10.1021/acsnano.4c10551","DOIUrl":"https://doi.org/10.1021/acsnano.4c10551","url":null,"abstract":"As traditional silicon-based materials almost reach their limits in the post-Moore era, two-dimensional (2D) transition metal dichalcogenides (TMDCs) have been regarded as next-generation semiconductors for high-performance electrical and optical devices. Chemical vapor deposition (CVD) is a widely used technique for preparing large-area and high-quality TMDCs. Yet, it suffers from the challenge of transfer due to the strong interaction between 2D materials and substrates. The traditional PMMA-assisted wet etching method tends to induce damage, wrinkles, and inevitable polymer residues. In this work, we propose an etch-free and clean transfer method via a water intercalation strategy for TMDCs, ensuring a high-fidelity, wrinkle-free, and crack-free transfer with negligible residues. Furthermore, metal electrodes can also be transferred via this method and back-gate field-effect transistors (FETs) based on CVD-grown monolayer WSe2 with van der Waals (vdW) metal/semiconductor contacts are fabricated. Compared to the PMMA-assisted transfer method (∼1.2 cm2 V-1 s-1 hole mobility with ∼2 × 106 ON/OFF ratio), our high-fidelity transfer method significantly enhances the electrical performance of WSe2 FET over one order of magnitude, achieving a hole mobility of ∼43 cm2 V-1 s-1 and a high ON/OFF ratio of ∼5 × 107 in air at room temperature.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":" ","pages":""},"PeriodicalIF":15.8,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646013","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

Low-Cost, Eco-Friendly, and High-Performance 3D Laser-Induced Graphene Evaporator for Continuous Solar-Powered Water Desalination. 用于连续太阳能海水淡化的低成本、环保、高性能三维激光诱导石墨烯蒸发器。

IF 15.8 1区材料科学

ACS Nano Pub Date : 2024-11-18 DOI: 10.1021/acsnano.4c12553

Truong-Son Dinh Le, Dongwook Yang, Han Ku Nam, Younggeun Lee, Chwee Teck Lim, Bong Jae Lee, Seung-Woo Kim, Young-Jin Kim

{"title":"Low-Cost, Eco-Friendly, and High-Performance 3D Laser-Induced Graphene Evaporator for Continuous Solar-Powered Water Desalination.","authors":"Truong-Son Dinh Le, Dongwook Yang, Han Ku Nam, Younggeun Lee, Chwee Teck Lim, Bong Jae Lee, Seung-Woo Kim, Young-Jin Kim","doi":"10.1021/acsnano.4c12553","DOIUrl":"https://doi.org/10.1021/acsnano.4c12553","url":null,"abstract":"Water scarcity has become a global challenge attributed to climate change, deforestation, population growth, and increasing water demand. While advanced water production plants are prevalent in urban areas, remote islands and sparsely populated regions face significant obstacles in establishing such technologies. Consequently, there is an urgent need for efficient, affordable, and sustainable water production technologies in these areas. Herein, we present a facile approach utilizing an ultrashort-pulsed laser to directly convert cotton fabric into graphene under ambient conditions. The resulting laser-induced graphene (LIG) demonstrates the highest light absorption efficiency of 99.0% and a broad absorption range (250-2500 nm). As an excellent solar absorber, LIG on cotton fabric can efficiently absorb 98.6% of the total solar irradiance and its surface temperature can reach 84.5 °C under sunlight without optical concentration. Moreover, we propose a cost-effective 3D LIG evaporator (LIGE) for continuous solar-powered desalination. This innovative design effectively mitigates salt formation issues and enhances the steam generation efficiency. The water evaporation rate and the solar-to-vapor conversion efficiency are measured to be around 1.709 kg m-2 h-1 and 95.1%, respectively, which surpass those reported in previous studies. The simplicity, durability, and continuous operational capability of the 3D LIGE offer promising prospects to address the growing challenges in global water scarcity.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":" ","pages":""},"PeriodicalIF":15.8,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142666395","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

Correction to "Cobalt Ditelluride Meets Tellurium Vacancy: An Efficient Catalyst as a Multifunctional Polysulfide Mediator toward Robust Lithium-Sulfur Batteries". 更正 "二碲化钴与碲空位：一种作为多功能多硫化物媒介的高效催化剂，可用于制造稳健的锂硫电池"。

IF 15.8 1区材料科学

ACS Nano Pub Date : 2024-11-18 DOI: 10.1021/acsnano.4c14667

Qianhong Gong, Dawei Yang, Huiping Yang, Konglin Wu, Jie Zhang, Wei Bi, Jiefeng Diao, Canhuang Li, Jing Yu, Chao Yue Zhang, Mengyao Li, Graeme Henkelman, Jordi Arbiol, Qiaobao Zhang, Andreu Cabot

引用次数: 0

Violation of the Wiedemann-Franz Law and Ultralow Thermal Conductivity of Ti₃C₂T_x MXene. Ti3C2Tx MXene 违反维德曼-弗朗茨定律和超低导热性。

IF 15.8 1区材料科学

ACS Nano Pub Date : 2024-11-17 DOI: 10.1021/acsnano.4c08189

Yubin Huang, Jean Spiece, Tetiana Parker, Asaph Lee, Yury Gogotsi, Pascal Gehring

{"title":"Violation of the Wiedemann-Franz Law and Ultralow Thermal Conductivity of Ti3C2Tx MXene.","authors":"Yubin Huang, Jean Spiece, Tetiana Parker, Asaph Lee, Yury Gogotsi, Pascal Gehring","doi":"10.1021/acsnano.4c08189","DOIUrl":"https://doi.org/10.1021/acsnano.4c08189","url":null,"abstract":"The high electrical conductivity and good chemical stability of MXenes offer hopes for their use in many applications, such as wearable electronics, energy storage, and electromagnetic interference shielding. While their optical, electronic, and electrochemical properties have been widely studied, information on the thermal properties of MXenes is scarce. In this study, we investigate the heat transport properties of Ti3C2Tx MXene single flakes using scanning thermal microscopy and find exceptionally low anisotropic thermal conductivities within the Ti3C2Tx flakes, leading to an effective thermal conductivity of 0.78 ± 0.21 W m-1 K-1. This observation is in stark contrast to the predictions of the Wiedemann-Franz law, as the estimated Lorenz number is only 0.25 of the classical value. Due to the combination of low thermal conductivity and low emissivity of Ti3C2Tx, the heat loss from it is 2 orders of magnitude smaller than that from common metals. Our study explores the heat transport mechanisms of MXenes and highlights a promising approach for developing thermal insulation, two-dimensional thermoelectric, or infrared stealth materials.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":" ","pages":""},"PeriodicalIF":15.8,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646032","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

Realization of Z₂ Topological Photonic Insulators Made from Multilayer Transition Metal Dichalcogenides. 实现由多层过渡金属二卤化物制成的 Z2 拓扑光子绝缘体。

IF 15.8 1区材料科学

ACS Nano Pub Date : 2024-11-17 DOI: 10.1021/acsnano.4c09295

Tommi Isoniemi, Paul Bouteyre, Xuerong Hu, Fedor Benimetskiy, Yue Wang, Maurice S Skolnick, Dmitry N Krizhanovskii, Alexander I Tartakovskii

{"title":"Realization of Z2 Topological Photonic Insulators Made from Multilayer Transition Metal Dichalcogenides.","authors":"Tommi Isoniemi, Paul Bouteyre, Xuerong Hu, Fedor Benimetskiy, Yue Wang, Maurice S Skolnick, Dmitry N Krizhanovskii, Alexander I Tartakovskii","doi":"10.1021/acsnano.4c09295","DOIUrl":"https://doi.org/10.1021/acsnano.4c09295","url":null,"abstract":"Monolayers of semiconducting transition metal dichalcogenides (TMDs) have long attracted interest for their intriguing optical and electronic properties. Recently, TMDs in their quasi-bulk form have started to show considerable promise for nanophotonics thanks to their high refractive indices, large optical anisotropy, wide transparency windows reaching to the visible, and robust room temperature excitons promising for nonlinear optics. Adherence of TMD layers to any substrate via van der Waals forces is a further key enabler for the nanofabrication of complex photonic structures requiring heterointegration. Here, we use the attractive properties of TMDs and realize topological spin-Hall photonic lattices made of arrays of triangular nanoholes in 50 to 100 nm thick WS2 flakes exfoliated on SiO2/Si substrates. High-quality structures are achieved by taking advantage of anisotropic dry etching dictated by the crystal axes of WS2. Reflectance measurements at room temperature show a photonic gap opening in the near-infrared in trivial and topological phases. Unidirectional propagation along the domain interface is demonstrated in real space via circularly polarized laser excitation in samples with both zigzag and armchair domain boundaries. Finite-difference time-domain simulations are used to interpret optical spectroscopy results. Our work demonstrates the feasibility of more complex nanophotonic devices based on the layered (van der Waals) materials platform.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":" ","pages":""},"PeriodicalIF":15.8,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646021","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

Enhancing zT in Organic Thermoelectric Materials through Nanoscale Local Control Crystallization 通过纳米级局部控制结晶提高有机热电材料的 zT

IF 17.1 1区材料科学

ACS Nano Pub Date : 2024-11-16 DOI: 10.1021/acsnano.4c10801

Gabriele Calabrese, Raimondo Cecchini, Denis Gentili, Diego Marini, Matteo Ferri, Fulvio Mancarella, Luisa Barba, Massimiliano Cavallini, Vittorio Morandi, Fabiola Liscio

{"title":"Enhancing zT in Organic Thermoelectric Materials through Nanoscale Local Control Crystallization","authors":"Gabriele Calabrese, Raimondo Cecchini, Denis Gentili, Diego Marini, Matteo Ferri, Fulvio Mancarella, Luisa Barba, Massimiliano Cavallini, Vittorio Morandi, Fabiola Liscio","doi":"10.1021/acsnano.4c10801","DOIUrl":"https://doi.org/10.1021/acsnano.4c10801","url":null,"abstract":"Organic thermoelectric materials are promising for wearable heating and cooling devices, as well as near-room-temperature energy generation, due to their nontoxicity, abundance, low cost, and flexibility. However, their primary challenge preventing widespread use is their reduced figure of merit (zT) caused by low electrical conductivity. This study presents a method to enhance the thermoelectric performance of solution-processable organic materials through confined crystallization using the lithographically controlled wetting (LCW) technique. Using PEDOT as a benchmark, we demonstrate that controlled crystallization at the nanoscale improves electrical conductivity by optimizing chain packing and grain morphology. Structural characterizations reveal the formation of a highly compact PEDOT arrangement, achieved through a combination of confined crystallization and DMSO post-treatment, leading to a 4-fold increase in the power factor compared to spin-coated films. This approach also reduces the thermal conductivity dependence on electrical conductivity, improving the zT by up to 260%. The LCW technique, compatible with large-area and flexible substrates, offers a simple, green, and low-cost method to boost the performance of organic thermoelectrics, advancing the potential for sustainable energy solutions and advanced organic electronic devices.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"197 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642782","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

Photonics of High-Entropy Polymers Revealing Molecular Dispersion via Polymer Mixing 通过聚合物混合揭示分子分散的高熵聚合物光子学

IF 17.1 1区材料科学

ACS Nano Pub Date : 2024-11-16 DOI: 10.1021/acsnano.4c10585

Yu-Jr Huang, Jien-Wei Yeh, Arnold Chang-Mou Yang

{"title":"Photonics of High-Entropy Polymers Revealing Molecular Dispersion via Polymer Mixing","authors":"Yu-Jr Huang, Jien-Wei Yeh, Arnold Chang-Mou Yang","doi":"10.1021/acsnano.4c10585","DOIUrl":"https://doi.org/10.1021/acsnano.4c10585","url":null,"abstract":"Blending multiple polymers together to form the so-called “high-entropy polymers (HEPs)” can generate the effects of molecular dispersion in addition to suppressing polymer phase separation. We embedded a semiconducting polymer (conjugated polymers, CPs) in an optically inert matrix composed of n polymer species and found that a molecule-level dispersion is attained in HEPs defined as n ≥ 5. In the regime of dilute CP concentrations, the photonic properties vary widely in the n = 1 matrices owing to diverse solubility parameters, but the distribution narrows with n, and the CP starts to exhibit behaviors of molecule-level dispersion at n ≥ 5, where the matrix polymers compete with each other to exert direct influences on the embedded CP. Specifically, for MEH-PPV, increasing n reduces the fluorescence redshift and spectral width from diminishing aggregation. For the rigid PFO molecules, increasing n creates a dilution effect facilitating formation of the low-energy planar β-phase. For the flexible regioregular P3HT-rr, HEPs offer well-dispersed amorphous chains highly susceptible to chain environments, thus influencing ηR’s in the quasi-fixed amorphous–crystalline energy transfer landscape. The HEP effects continue for greater CP concentrations, consistent with the matrix dispersing behaviors in the dilute regime. This work demonstrates a molecular-level dispersion by HEPs, offering a method of molecular tailoring for polymer research and applications via simple mixing.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"48 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642781","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

Shell-Isolated Nanoparticle-Enhanced Raman Spectroscopy: Toward High Sensitivity and Broad Applicability 壳隔离纳米粒子增强拉曼光谱：实现高灵敏度和广泛适用性

IF 17.1 1区材料科学

ACS Nano Pub Date : 2024-11-16 DOI: 10.1021/acsnano.4c07037

Yue-Zhou Zhu, Ru-Yu Zhou, Shu Hu, Jian-Feng Li, Zhong-Qun Tian

{"title":"Shell-Isolated Nanoparticle-Enhanced Raman Spectroscopy: Toward High Sensitivity and Broad Applicability","authors":"Yue-Zhou Zhu, Ru-Yu Zhou, Shu Hu, Jian-Feng Li, Zhong-Qun Tian","doi":"10.1021/acsnano.4c07037","DOIUrl":"https://doi.org/10.1021/acsnano.4c07037","url":null,"abstract":"As a nondestructive and ultrasensitive technique, surface-enhanced Raman spectroscopy (SERS) has captivated the attention of the global scientific community for over 50 years. Among the various spectroscopic techniques derived from SERS, shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS) stands as a cutting-edge advancement. The innovative and versatile core–shell nanoparticle structures used in SHINERS have emerged as an ideal platform for interfacial research, offering high sensitivity and broad applicability across diverse materials and single-crystal surfaces. Consequently, SHINERS has seen widespread adoption in pivotal fields, such as interface chemistry, electrocatalysis, biomedicine, materials, and food safety. In this Perspective, we outline the evolutionary journey of SHINERS, delve deep into its applications in fundamental research for interface characterization and catalysis, and explore its practical utility in critical areas of food safety and biomedicine analysis. Additionally, we map out the prospective trajectory and future milestones that await SHINERS as it continues to revolutionize the landscape of scientific exploration.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"9 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642741","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

Recent Advances of Stimuli-Responsive Liquid–Liquid Interfaces Stabilized by Nanoparticles 纳米颗粒稳定的刺激响应型液液界面的最新进展

IF 17.1 1区材料科学

ACS Nano Pub Date : 2024-11-15 DOI: 10.1021/acsnano.4c11387

Qinpiao Yi, Liang Liu, Ganhua Xie

引用次数: 0

Multifunctional Microneedle Patches for Perivascular Gene Delivery and Treatment of Vascular Intimal Hyperplasia 用于血管周围基因递送和血管内膜增生治疗的多功能微针贴片

IF 17.1 1区材料科学

ACS Nano Pub Date : 2024-11-15 DOI: 10.1021/acsnano.4c09527

Yi Cheng, Xiaoxuan Zhang, Xiangyi Wu, Youjun Ding, Linxi Zhu, Jun Pan, Yuanjin Zhao, Min Zhou

{"title":"Multifunctional Microneedle Patches for Perivascular Gene Delivery and Treatment of Vascular Intimal Hyperplasia","authors":"Yi Cheng, Xiaoxuan Zhang, Xiangyi Wu, Youjun Ding, Linxi Zhu, Jun Pan, Yuanjin Zhao, Min Zhou","doi":"10.1021/acsnano.4c09527","DOIUrl":"https://doi.org/10.1021/acsnano.4c09527","url":null,"abstract":"Gene therapy has emerged as a promising approach to address challenging cardiovascular diseases. Extensive efforts have been focused on developing highly efficient gene vectors with precise delivery techniques to enhance its effectiveness. In this study, we present multifunctional dopamine-gelatin microneedle patches with gene therapy capabilities to achieve perivascular gene delivery for intimal hyperplasia treatment. These patches that were fabricated through freeze-drying of gelatin are with recombinant adeno-associated virus (rAAVs)-carrying tips and dopamine coating backing layers. The lyophilized gelatin could not only effectively preserve the therapeutic activity of rAAVs but could also demonstrate the capability to penetrate the adventitia for efficient delivery. The incorporation of dopamine facilitated patch adhesion and extended the release duration. Based on these advantages, we have demonstrated that the rAAVs-loaded microneedle patches (AMNPs) behave satisfactorily in perivascular gene delivery to inhibit carotid artery restenosis in rats. These features indicate that the AMNPs are clinically valuable in the treatment of vascular intimal hyperplasia diseases.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"98 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142637660","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