Nanoscale最新文献_第8页

Rational design of hybrid nanomaterials for enhanced CO2 capture: A way towards greener environment † 混合纳米材料的合理设计增强二氧化碳捕获：一条迈向绿色环境的道路

IF 6.7 3区材料科学

Nanoscale Pub Date : 2026-10-13 DOI: 10.1039/d6nr01755j

Kaushlendra Agrahari,Parthiban Palani,Ajit Kumar Katiyar,Benoit Duponchel,Ravindra Kumar Gupta,Achalkumar Ammathnadu Sudhakar,Muriel Chaghouri,Lucette Tihady,Cédric Gennequin,Jian Xu,Frederic Dubois,Dharmendra Pratap Singh

{"title":"Rational design of hybrid nanomaterials for enhanced CO2 capture: A way towards greener environment †","authors":"Kaushlendra Agrahari,Parthiban Palani,Ajit Kumar Katiyar,Benoit Duponchel,Ravindra Kumar Gupta,Achalkumar Ammathnadu Sudhakar,Muriel Chaghouri,Lucette Tihady,Cédric Gennequin,Jian Xu,Frederic Dubois,Dharmendra Pratap Singh","doi":"10.1039/d6nr01755j","DOIUrl":"https://doi.org/10.1039/d6nr01755j","url":null,"abstract":"Carbon dioxide (CO2) emission remains one of the solicitude concerns for society to achieve net-zero emissions. The functionalized nanocrystals have recently exhibited their potential to capture CO2. We synthesized ZnO and Zn1-xAgxO nanocrystals by chemical co-precipitation to fulfil the aim of CO2 capture. The X-ray diffraction spectra of ZnO nanocrystals have depicted their hexagonal wurtzite structure; however, Ag doping shifts the (100), (002), and (101) reflection peaks toward higher 2θ values, indicating lattice distortion and a reduction in crystallite size. Besides, the X-ray photoelectron spectroscopy analysis shows that Zn1-xAgxO nanocrystals exhibit around 0.5 at.% content of Ag in the ZnO lattice. Henceforth, the nanocrystals have been functionalized with N-annulated perylene tetraester (PT) to enhance their reactivity. The ability of these nanocrystals to capture CO2 and its relevance for sustainable climate initiatives have been examined by CO2-temperature programmed desorption (CO2-TPD) studies. This study reveals that the CO2 molecules are effectively adsorbed on the PT-functionalized Zn1-xAgxO nanocrystals and do not detach until 400 °C, which has been explained using the Polanyi-Wigner relation. This investigation demonstrates a compelling aspect of maintaining an environmentally sustainable and pollution-free ecosystem.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"53 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

What property of nanoparticles determines the triggering of clathrin-mediated endocytosis: size or mass? 纳米粒子的什么特性决定了网格蛋白介导的内吞作用的触发：大小还是质量？

IF 5.2 3区材料科学

Nanoscale Pub Date : 2026-10-13 DOI: 10.1039/d6nr03546a

Shou-Yang Lei, Yuan Guo, Jun-Hao Guo, Lu-Lu Chen, Yuan-Yuan Liu, Aoneng Cao, Haifang Wang

{"title":"What property of nanoparticles determines the triggering of clathrin-mediated endocytosis: size or mass?","authors":"Shou-Yang Lei, Yuan Guo, Jun-Hao Guo, Lu-Lu Chen, Yuan-Yuan Liu, Aoneng Cao, Haifang Wang","doi":"10.1039/d6nr03546a","DOIUrl":"https://doi.org/10.1039/d6nr03546a","url":null,"abstract":"Clathrin-mediated endocytosis (CME) is one of the most important pathways for transporting nanoparticles (NPs) into cells. It has been demonstrated that a single large NP can effectively trigger CME when it exceeds a certain threshold, thereby carrying nearby small NPs into cells and significantly enhancing their cellular uptake. However, it is unclear what property of the NPs, mass or size, contributes more to the CME triggering. Herein, we demonstrate that size is more important than mass in CME triggering by using a special trio of accurately synthesized silica NPs. One of the trio (Ag@SNP80) with a silver core has the same size as the 80 nm silica NPs (SNP80) and the same mass as the 100 nm silica NPs (SNP100). SNP80 is smaller than the CME triggering threshold, whereas SNP100 exceeds it. By comparing the different enhancing effects of this particular trio on the cellular uptake of 40 nm silica NPs (FSNP40), we are able to compare their different capabilities in triggering CME. Results from both HeLa and A549 cells showed the same order of the enhancing effect, with SNP100 > Ag@SNP80 ≈ SNP80, clearly demonstrating that size is more important than mass in triggering CME. This conclusion is further confirmed by the enhanced cellular uptake of 70 nm polystyrene NPs (FPS70) by the trio of SNPs in the same order. This finding improves our understanding of how NPs and other materials are internalized by cells and sheds light on the fundamental mechanisms of CME.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":" ","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149163774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Resistance mapping in mesoscopic films of low dimensional materials 低维材料介观薄膜中的电阻映射

IF 6.7 3区材料科学

Nanoscale Pub Date : 2026-10-12 DOI: 10.1039/d6nr01610c

Nicolo Galizia,Rafael Luque Merino,Yigit Sozen,Juanjo Riquelme,Riccardo Frisenda,Andres Castellanos-Gomez

引用次数: 0

Progress on Synergistic Nanoengineering Regulation of Cathode and Anode Interfaces in High-Performance Aqueous Zinc-Iodine Batteries 高性能锌碘水电池负极界面协同纳米工程调控研究进展

IF 6.7 3区材料科学

Nanoscale Pub Date : 2026-10-12 DOI: 10.1039/d6nr03373c

Xin Chen,Chen Lihui,Chuyuan Lin,Minghui Liu,Zhengyang Huang,Fengqiang Luo,Weiming Zhou,Qinghua Chen,Lingxing Zeng

{"title":"Progress on Synergistic Nanoengineering Regulation of Cathode and Anode Interfaces in High-Performance Aqueous Zinc-Iodine Batteries","authors":"Xin Chen,Chen Lihui,Chuyuan Lin,Minghui Liu,Zhengyang Huang,Fengqiang Luo,Weiming Zhou,Qinghua Chen,Lingxing Zeng","doi":"10.1039/d6nr03373c","DOIUrl":"https://doi.org/10.1039/d6nr03373c","url":null,"abstract":"Aqueous zinc-iodine (Zn-I2) batteries are considered promising candidates for large-scale energy storage, owing to the abundant resources of zinc anodes, high theoretical capacity, excellent safety, as well as the fast reaction kinetics and low cost of iodine (I2) cathodes. However, their application is still limited by coupled failure at the cathode and anode interfaces. On the cathode side, polyiodides easily cause shuttle effects, self-discharge, and active I2 loss, while the anode faces core issues such as dendrite formation, hydrogen evolution, corrosion and deposition of by-products. Meanwhile, the migration of polyiodides and OH -/pH disturbances induced by anode side reactions amplify each other, further accelerating battery degradation. Electrolyte additives, due to their structurally designable nature, low dosage, and good compatibility, can synergistically regulate both interfaces of the cathode and anode, making them an effective strategy to mitigate coupled failures. This review systematically summarized the research progress of additives with different molecular configurations in aqueous Zn-I2 batteries, focusing on their structural characteristics, dual-interface mechanisms, and performance. The review also discusses challenges in mechanistic evidence, evaluation standards, adaptability to complex working conditions, and molecular design, and envisions the development direction of additives for Zn-I2 batteries with high loading, long lifespan, and multi-electron reactions.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"88 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Multidimensional manipulation of nanoscale photothermal distributions using vortex beams 利用涡旋光束对纳米尺度光热分布的多维操纵

IF 6.7 3区材料科学

Nanoscale Pub Date : 2026-10-12 DOI: 10.1039/d6nr01626j

Lizhao Shen,Yeming Qing,Caiqin Han,Yunxia Wang,Jiacheng Yao,Changchun Yan

{"title":"Multidimensional manipulation of nanoscale photothermal distributions using vortex beams","authors":"Lizhao Shen,Yeming Qing,Caiqin Han,Yunxia Wang,Jiacheng Yao,Changchun Yan","doi":"10.1039/d6nr01626j","DOIUrl":"https://doi.org/10.1039/d6nr01626j","url":null,"abstract":"Controlling and manipulating temperature at the nanoscale hold substantial promise for advancing applications such as photothermal therapy, nanoscale chemical reactions, and micro/nanodevices. However, current temperature regulation methods predominantly rely on continuously tunable optical parameters (e.g., wavelength and polarization), which limit discrete and digitally addressable control states and result in insufficient degrees of freedom for tailoring local temperature distributions. The orbital angular momentum (OAM) of light offers a novel perspective for light–near-field thermal interactions, yet its potential to regulate nanoscale spatial temperature distributions remains unexplored. Herein, we demonstrate the unique regulatory role of the OAM of vortex beams for nanoscale thermal fields. By tuning the phase distribution of vortex beams characterized by the helical phase factor eilϕ, pronounced spatially asymmetric temperature distributions and multiple local temperature inversions are induced in plasmonic structures. Through the synergistic modulation of key vortex beam parameters—including topological charge l, wavelength, and polarization direction—we achieve multi-degree-of-freedom reconstruction of thermal near-field distributions with subwavelength spatial resolution, where the temperature increase ratio is tunable over the range of 0.6–1.7. This work not only provides discrete and digitally addressable control states for thermal regulation but also broadens the understanding of light–thermal field interactions. It offers guidance for realizing multidimensional far-field optical control over local thermal distributions, opening a new route toward frontier applications such as micro-electro-mechanical systems (MEMS), spatially selective photothermal catalysis, nanoscale phase transition manipulation, and super-resolution photothermal therapy.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"2 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Synergistic Defect Engineering and Phosphonation of Porphyrin-Decorated UiO-66 for Efficient Uranium Photoreduction 卟啉修饰UiO-66在高效铀光还原中的协同缺陷工程与磷化

IF 6.7 3区材料科学

Nanoscale Pub Date : 2026-10-12 DOI: 10.1039/d6nr02028c

Yunzi Wang,Zhengwen Han,Quanqi Yang,Wanjing Jia,Chen Wang,Jianjun Wang

{"title":"Synergistic Defect Engineering and Phosphonation of Porphyrin-Decorated UiO-66 for Efficient Uranium Photoreduction","authors":"Yunzi Wang,Zhengwen Han,Quanqi Yang,Wanjing Jia,Chen Wang,Jianjun Wang","doi":"10.1039/d6nr02028c","DOIUrl":"https://doi.org/10.1039/d6nr02028c","url":null,"abstract":"The photocatalytic reduction of U(VI) on semiconductors has been widely investigated as an environmentally friendly and energy-efficient method. However, their practical applications are constrained by the weak affinity of catalysts for uranyl ions and the rapid recombination of photogenerated carriers. To address these challenges, we constructed a porphyrin-decorated UiO-66 photocatalyst (ZBT-P) by integrating BA-induced defect regulation, TCPP sensitization, and post-synthetic phosphonate functionalization. Characterization results demonstrated that the as-synthesized ZBT-P possessed a uniform shape and size distribution with a regular octahedral-like morphology. ZBT-P exhibited high removal efficiency (99.8% under visible-light irradiation) along with excellent stability in complex water bodies across a broad pH range. The introduction of phosphonate groups improved surface hydrophilicity and regulated the interfacial interaction and charge-transfer environment. Meanwhile, this integrated architecture retained the excellent light-trapping capability of TCPP ligands and transformed defect-rich Zr nodes into efficient electron trapping centers, which significantly suppressed the recombination of photogenerated carriers. Mechanistic investigations revealed the coexistence of photoreduced U(IV) species and crystalline metastudtite, a U(VI) uranyl peroxide hydrate ((UO2)O2·2H2O), with photogenerated electrons and superoxide radicals playing important roles in uranium immobilization. Overall, this dual-modification strategy endows ZBT-P with uranium enrichment capability and superior electron transport efficiency, offering great promise for practical environmental remediation.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"59 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149151999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Formation of charged defect excitons and reconfigured exciton relaxation pathways in chromium-doped monolayer MoS₂. 掺杂铬的MoS2单层中带电缺陷激子的形成和激子弛豫路径的重新配置。

IF 5.2 3区材料科学

Nanoscale Pub Date : 2026-10-12 DOI: 10.1039/d6nr02775j

Nagendra S Kamath, Laxmi Saran, Dipak Maity, Arpan De, Tharangattu N Narayanan, Suman Kalyan Pal

{"title":"Formation of charged defect excitons and reconfigured exciton relaxation pathways in chromium-doped monolayer MoS2.","authors":"Nagendra S Kamath, Laxmi Saran, Dipak Maity, Arpan De, Tharangattu N Narayanan, Suman Kalyan Pal","doi":"10.1039/d6nr02775j","DOIUrl":"https://doi.org/10.1039/d6nr02775j","url":null,"abstract":"Substitutional doping provides an effective route for tailoring the optical and electronic properties of two-dimensional transition metal dichalcogenides. Here, we investigate the influence of Cr-induced defect states on the ultrafast carrier dynamics of monolayer MoS2 (MS) using femtosecond transient absorption (TA) spectroscopy. Cr incorporation introduces distinct defect-related excitonic resonances that strongly modify the relaxation pathways of photoexcited carriers. Our measurements reveal enhanced bandgap renormalization and a progressive transfer of spectral population from the A exciton into Cr-induced defect states, indicating efficient carrier localization. At elevated excitation densities, a new defect-related transition emerges which exhibits distinct spectral evolution, relaxation dynamics, and superlinear population growth, consistent with charged defect-bound excitonic states. Interestingly, carrier trapping into Cr-induced states suppresses density-dependent exciton-exciton annihilation and prolongs excitonic lifetimes. Furthermore, the defect states exhibit exceptionally large saturation fluences (up to ∼640 µJ cm-2), enabling substantially enhanced carrier-storage capacity. These findings establish dopant-induced defect engineering as a powerful approach for tuning ultrafast carrier relaxation and nonlinear optical response in monolayer MS, paving the way for advanced nonlinear photonic and optoelectronic devices.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":" ","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149163586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Disorder-order transition in FePt nanoparticles mediated by Bi doping: a combined first-principles and experimental study. 铋掺杂介导的FePt纳米颗粒的无序-有序转变：第一性原理和实验研究的结合。

IF 5.2 3区材料科学

Nanoscale Pub Date : 2026-10-12 DOI: 10.1039/d6nr02620f

Qunshou Wang, Ling Chang, Dong Zhao, Junjie Yan, Dunhui Wang, Zhengming Zhang, Wenli Pei

{"title":"Disorder-order transition in FePt nanoparticles mediated by Bi doping: a combined first-principles and experimental study.","authors":"Qunshou Wang, Ling Chang, Dong Zhao, Junjie Yan, Dunhui Wang, Zhengming Zhang, Wenli Pei","doi":"10.1039/d6nr02620f","DOIUrl":"https://doi.org/10.1039/d6nr02620f","url":null,"abstract":"This study systematically investigates the effects of varying Bi doping concentrations on the magnetic properties and disorder-order transition of FePt nanoparticles (NPs) by combining first-principles calculations with experimental validation. The calculations indicate that a low concentration of Bi can be effectively doped into the FePt lattice, whereas the contribution of vacancy-assisted diffusion becomes increasingly important at higher Bi concentrations. Bi doping significantly reduces the vacancy formation energy and lowers the atomic diffusion barrier from 1.07 eV to 0.76 eV, thereby accelerating the disorder-order transition and enhancing magnetic properties. Experimental results confirm that the appropriate level of Bi doping promotes L10 ordering. FePt NPs with an ordering degree of S = 0.925 and a coercivity (Hc) of 11.05 kOe were obtained with the addition of 0.3 mmol Bi. However, excessive Bi doping induces particle aggregation and reduces their magnetic performance. Our findings reveal that the ordering transition in FePt NPs is governed by the synergistic interplay between Bi-induced lattice strain and vacancy-assisted diffusion kinetics. By elucidating these dual regulatory pathways, this study provides a viable paradigm for the controllable synthesis of L10-FePt nanomaterials with high structural ordering.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":" ","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149163403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

β-Glucan-based oral nano/micro delivery systems: harnessing dual immunomodulatory and microbiota-modulating properties for targeted therapy of cancer and inflammatory bowel disease 基于β-葡聚糖的口服纳米/微递送系统：利用双重免疫调节和微生物调节特性靶向治疗癌症和炎症性肠病

IF 6.7 3区材料科学

Nanoscale Pub Date : 2026-10-12 DOI: 10.1039/d6nr02259f

Yanfei Fu,Cheng Cao,Yingao Jiao,Yu Cao,Huifang Hao,Xinyuan Cui,Dengyao Gao,Yan Gao,Qian Zhang,Yanlei Liu

{"title":"β-Glucan-based oral nano/micro delivery systems: harnessing dual immunomodulatory and microbiota-modulating properties for targeted therapy of cancer and inflammatory bowel disease","authors":"Yanfei Fu,Cheng Cao,Yingao Jiao,Yu Cao,Huifang Hao,Xinyuan Cui,Dengyao Gao,Yan Gao,Qian Zhang,Yanlei Liu","doi":"10.1039/d6nr02259f","DOIUrl":"https://doi.org/10.1039/d6nr02259f","url":null,"abstract":"The efficacy of oral drug delivery is often constrained by gastrointestinal physiological barriers and the hepatic first-pass effect, while conventional oral formulations lack the capability of targeted release at intestinal lesions, creating an urgent need for innovative functional delivery carriers. β-Glucan, an abundant natural polysaccharide, holds great potential for constructing intelligent oral nano/micro delivery systems, owing to its resistance to human digestive enzymes and its inherent dual immunomodulatory and microbiota-regulating properties. This carrier not only serves as an ideal protective vehicle but also bypasses the first-pass effect via M-cell-mediated lymphatic targeting and achieves site-specific drug release at pathological sites through its susceptibility to colonic microbiota enzymatic degradation. This review emphasizes the structural diversity, structure–activity relationships, and combined immunomodulatory/microbiota-modulating functions of β-glucan. It further explains how M-cell targeting and microbiota responsiveness are integrated to overcome gastrointestinal barriers for precise intestinal and systemic delivery. Recent advances in β-glucan-based nano/micro delivery systems for the treatment of cancer and inflammatory bowel disease are also highlighted. Finally, current challenges and future directions for β-glucan-based oral nano/micro delivery systems are outlined. In summary, the unique properties of β-glucan offer exciting new opportunities for targeted oral drug delivery.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"33 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

New insights into layer-dependent carrier dynamics of LPCVD grown graphene from terahertz spectroscopy. 从太赫兹光谱对LPCVD生长石墨烯的层依赖载流子动力学的新见解。

IF 5.2 3区材料科学

Nanoscale Pub Date : 2026-10-12 DOI: 10.1039/d6nr01699e

Leeza Dutta, Nishu Rani, Vibhavari Parkar, Snehal Haldankar, Fathimath Faseela, Ruturaj Puranik, Utkarsh Pandey, Rahul Verma, Shubhda Srivastava, Bahadur Singh, Shriganesh S Prabhu, Bipin Kumar Gupta

{"title":"New insights into layer-dependent carrier dynamics of LPCVD grown graphene from terahertz spectroscopy.","authors":"Leeza Dutta, Nishu Rani, Vibhavari Parkar, Snehal Haldankar, Fathimath Faseela, Ruturaj Puranik, Utkarsh Pandey, Rahul Verma, Shubhda Srivastava, Bahadur Singh, Shriganesh S Prabhu, Bipin Kumar Gupta","doi":"10.1039/d6nr01699e","DOIUrl":"10.1039/d6nr01699e","url":null,"abstract":"The carrier dynamics in graphene is highly sensitive to layer number, making systematic layer-dependent studies essential for understanding the fundamental properties of graphene and for engineering tunable quantum devices. However, precisely probing and quantifying these layer-specific carrier dynamics remains a significant challenge, necessitating advanced spectroscopic approaches. Herein, a comprehensive and unprecedented investigation of layer-dependent carrier dynamics in single layer, bilayer and trilayer graphene is presented using terahertz spectroscopy, supported by first-principles band structures and density of states that elucidate the underlying mechanism. The study reveals a systematic evolution of the intra-band carrier momentum relaxation time, scattering rate and mobility with increasing number of graphene layers through terahertz-time domain spectroscopy, highlighting the impact of layer variation on the carrier dynamics. The study further reveals the occurrence of extended carrier relaxation lifetimes after optical pumping in bilayer and trilayer graphene, offering key insights into carrier relaxation. This work provides experimental evidence of carrier dynamics variation of graphene with each atomic layer thereby establishing a new benchmark for precision in probing low-energy carrier dynamics and highlighting its significant implications for spectroscopic and optoelectronic applications.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":" ","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149163680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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