Small Science最新文献_第7页

Microcavity-Enhanced Polarization Photodetection in Antimony Selenide Nanotube-Based Near-Infrared Photodetectors 基于硒化锑纳米管的近红外光电探测器中的微腔增强偏振光电探测技术

IF 12.7

Small Science Pub Date : 2024-07-12 DOI: 10.1002/smsc.202400216

Songqing Zhang, Khalil As’Ham, Han Wang, Wenwu Pan, Ibrahim Al-Ani, Huijia Luo, Junliang Liu, Yongling Ren, Haroldo Takashi Hattori, Andrey E. Miroshnichenko, Lorenzo Faraone, Wen Lei

{"title":"Microcavity-Enhanced Polarization Photodetection in Antimony Selenide Nanotube-Based Near-Infrared Photodetectors","authors":"Songqing Zhang, Khalil As’Ham, Han Wang, Wenwu Pan, Ibrahim Al-Ani, Huijia Luo, Junliang Liu, Yongling Ren, Haroldo Takashi Hattori, Andrey E. Miroshnichenko, Lorenzo Faraone, Wen Lei","doi":"10.1002/smsc.202400216","DOIUrl":"https://doi.org/10.1002/smsc.202400216","url":null,"abstract":"This study presents the polarization photodetection enhancement in Sb2Se3 nanotube (NT)-based near-infrared (NIR) photodetectors through simulation-based and experimental investigations. High-quality single-crystal Sb2Se3 NTs are grown via chemical vapor deposition and characterized by using multiple techniques. The optical simulation reveals a remarkable difference in the light absorption ratio (specifically, absorption along the NT/nanowire (NW) against absorption perpendicular to the NT/NW) between Sb2Se3 NT and NW of the same size in the NIR region. The complementary photodetection experiments present that the fabricated Sb2Se3 NT photodetector demonstrates enhanced polarization photodetection in the NIR range, as indicated by a significantly increased dichroic ratio (3.03 at 850 nm) compared to that of similar-sized NW counterpart (1.81 at 850 nm). Additionally, the Sb2Se3 NT photodetector exhibits exceptional performance, with a high responsivity of 4.18 A W−1 and specific detectivity of 8.94 × 1010 Jones under 830 nm light illumination. This study provides a comprehensive understanding of the microcavity resonance effect and its role in polarization photodetection enhancement, highlighting the potential of self-assembled Sb2Se3 NTs in high-performance near-infrared polarized photodetection and other relevant applications.","PeriodicalId":29791,"journal":{"name":"Small Science","volume":null,"pages":null},"PeriodicalIF":12.7,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141612590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal Sight: A Position-Sensitive Detector for a Pinpoint Heat Spot 红外热像仪精确定位热斑的位置敏感探测器

IF 12.7

Small Science Pub Date : 2024-07-11 DOI: 10.1002/smsc.202400091

Jun Peng, Pai Zhao, Rakshith Venugopal, Kristian Deneke, Stefanie Haugg, Robert Blick, Robert Zierold

{"title":"Thermal Sight: A Position-Sensitive Detector for a Pinpoint Heat Spot","authors":"Jun Peng, Pai Zhao, Rakshith Venugopal, Kristian Deneke, Stefanie Haugg, Robert Blick, Robert Zierold","doi":"10.1002/smsc.202400091","DOIUrl":"https://doi.org/10.1002/smsc.202400091","url":null,"abstract":"Precise positioning is a never-ending goal in both fundamental science and technology. Recent decades of advancements in high-precision position detection have predominantly relied on photoelectric effects for light detection in semiconductors. Herein, a different approach is proposed: The thermoelectric-based position-sensitive detector (T-PSD) concept is designed to detect single heat spots arising from various energy sources, including electromagnetic radiation, electrons, and macroscopic mechanical heat. The T-PSD concept is initially derived mathematically from the fundamental principles of heat conduction and the Seebeck effect. Subsequently, it is proved by finite element simulation in both 1D and 2D configurations. Following this theoretical groundwork, T-PSD prototypes are fabricated and subjected to positional detection using various stimuli such as CO2 laser beam, hot soldering tip, and electron beam. In the prototypes, structured aluminum-doped zinc oxide thermoelectric thin films, prepared via atomic layer deposition, are outfitted with voltage probes, enabling the measurement of thermoelectric voltages as a function of position and the intensity or temperature of the heat spot. Furthermore, practical decoding strategies are introduced to infer the position from the measured signals. The T-PSD in this article showcases considerable promise in high-precision position detection such as (quasi-)particle tracking and precision machinery, offering an alternative concept in PSD design.","PeriodicalId":29791,"journal":{"name":"Small Science","volume":null,"pages":null},"PeriodicalIF":12.7,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141612591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Long-Lasting Hydrogen Evolution and Efficient Dew Harvest Realized via Electrospinning Polyvinylidene Fluoride Membrane on Hybrid Hydrogels 通过在混合水凝胶上电纺丝聚偏氟乙烯膜实现长效氢进化和高效露水收集

IF 12.7

Small Science Pub Date : 2024-07-10 DOI: 10.1002/smsc.202470025

Jie Yu, Mengmeng Chen, Neng Hu, Weijia Wang, Lin Lei, Huiqing Fan, Peter Müller-Buschbaum, Qi Zhong

引用次数: 0

Enhanced Efficacy of a TLR3 Agonist Delivered by Cowpea Chlorotic Mottle Virus Nanoparticles 豇豆萎黄斑驳病病毒纳米颗粒释放的 TLR3 激动剂的增效作用

IF 12.7

Small Science Pub Date : 2024-07-10 DOI: 10.1002/smsc.202470021

Eunkyeong Jung, Anahid Foroughishafiei, Young Hun Chung, Nicole F. Steinmetz

引用次数: 0

Pulsed-Laser-Driven CO2 Reduction Reaction for the Control of the Photoluminescence Quantum Yield of Organometallic Gold Nanocomposites 脉冲激光驱动二氧化碳还原反应控制有机金属金纳米复合材料的光致发光量子产率

IF 12.7

Small Science Pub Date : 2024-07-10 DOI: 10.1002/smsc.202470024

Tahir, Guilherme C. Concas, Mariana Gisbert, Marco Cremona, Fernando Lazaro, Marcelo Eduardo H. Maia da Costa, Suellen D. T. De Barros, Ricardo Q. Aucélio, Tatiana Saint Pierre, José Marcus Godoy, Diogo Mendes, Gino Mariotto, Nicola Daldosso, Francesco Enrichi, Alexandre Cuin, Aldebarã F. Ferreira, Walter M. de Azevedo, Geronimo Perez, Celso SantAnna, Braulio Soares Archanjo, Yordy E. Licea Fonseca, Andre L. Rossi, Francis L. Deepak, Rajwali Khan, Quaid Zaman, Sven Reichenberger, Theo Fromme, Giancarlo Margheri, José R. Sabino, Gabriella Fibbi, Mario Del Rosso, Anastasia Chillà, Francesca Margheri, Anna Laurenzana, Tommaso Del Rosso

引用次数: 0

In Situ Growth of Hierarchical Silver Sub-Nanosheets on Zinc Nanosheets-Based Hollow Fiber Gas-Diffusion Electrodes for Electrochemical CO2 Reduction to CO 在锌纳米片基中空纤维气体扩散电极上原位生长分层银亚纳米片，用于电化学将二氧化碳还原为二氧化碳

IF 12.7

Small Science Pub Date : 2024-07-10 DOI: 10.1002/smsc.202400184

Guoliang Chen, Lei Ge, Yizhu Kuang, Hesamoddin Rabiee, Beibei Ma, Fatereh Dorosti, Ashok Kumar Nanjundan, Zhonghua Zhu, Hao Wang

{"title":"In Situ Growth of Hierarchical Silver Sub-Nanosheets on Zinc Nanosheets-Based Hollow Fiber Gas-Diffusion Electrodes for Electrochemical CO2 Reduction to CO","authors":"Guoliang Chen, Lei Ge, Yizhu Kuang, Hesamoddin Rabiee, Beibei Ma, Fatereh Dorosti, Ashok Kumar Nanjundan, Zhonghua Zhu, Hao Wang","doi":"10.1002/smsc.202400184","DOIUrl":"https://doi.org/10.1002/smsc.202400184","url":null,"abstract":"Electrochemical reduction of CO2 (CO2RR) is an effective strategy to mitigate carbon emission effects and store renewable electricity in value-added feedstocks, but it still suffers low production rate and current density. A nanostructured catalyst offers opportunities to enhance CO2RR activity by contributing numerous active sites and promoting charge transfer. Herein, a Cu hollow fiber gas diffusion electrode (HFGDE) with silver sub-nanosheets on a zinc nanosheet structure to produce CO is reported. Compared to the HFGDE only possessed zinc nanosheet structure, the as-prepared HFGDE with hierarchical sub-nano AgZn bimetal nanosheets exhibits a twice-partial current density of CO and a CO production rate at the applied potential −1.3 V (versus reversible hydrogen electrode). The unique Ag sub-nanosheets interconnected Zn nanosheets provide multiple charge transfer channels, and the synergistic effect between Ag and Zn improves the adsorption binding energy of COOH* intermediate, resulting in a lower charge transfer resistance and fast CO2RR kinetics to produce CO. This research demonstrates the high potential of nanoengineering electrocatalysts for HFGDE to achieve highly efficient CO2 reduction.","PeriodicalId":29791,"journal":{"name":"Small Science","volume":null,"pages":null},"PeriodicalIF":12.7,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141612594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wearable Sensors for Physiological Condition and Activity Monitoring 用于生理状况和活动监测的可穿戴传感器

IF 12.7

Small Science Pub Date : 2024-07-10 DOI: 10.1002/smsc.202470023

Pillalamarri Srikrishnarka, Joonas Haapasalo, Juan P. Hinestroza, Zhipei Sun, Nonappa

引用次数: 0

Ultrahigh Ni-Rich (90%) Layered Oxide-Based Cathode Active Materials: The Advantages of Tungsten (W) Incorporation in the Precursor Cathode Active Material 超高富镍（90%）层状氧化物基阴极活性材料：在前驱体阴极活性材料中加入钨 (W) 的优势

IF 12.7

Small Science Pub Date : 2024-07-10 DOI: 10.1002/smsc.202400135

Marcel Heidbüchel, Aurora Gomez-Martin, Lars Frankenstein, Ardavan Makvandi, Martin Peterlechner, Gerhard Wilde, Martin Winter, Johannes Kasnatscheew

{"title":"Ultrahigh Ni-Rich (90%) Layered Oxide-Based Cathode Active Materials: The Advantages of Tungsten (W) Incorporation in the Precursor Cathode Active Material","authors":"Marcel Heidbüchel, Aurora Gomez-Martin, Lars Frankenstein, Ardavan Makvandi, Martin Peterlechner, Gerhard Wilde, Martin Winter, Johannes Kasnatscheew","doi":"10.1002/smsc.202400135","DOIUrl":"https://doi.org/10.1002/smsc.202400135","url":null,"abstract":"Minor amounts of tungsten (W) are well known to improve Ni-rich layered oxide-based cathode active materials (CAMs) for Li ion batteries. Herein, W impacts are validated and compared for varied concentrations and incorporation routes in aqueous media for LiNi0.90Co0.06Mn0.04O2 (NCM90-6-4), either via modification of a precursor NixCoyMnz(OH)2 (pCAM) within a sol–gel reaction or directly during synthesis, i.e., either via an W-based educt or during co-precipitation in a continuously operated Couette–Taylor reactor. In particular, the sol–gel modification is shown to be beneficial and reveals >500 cycles for ≈80% state-of-health NCM90-6-4||graphite cells. It can be related to homogeneously W-modified surface as well as smaller and elongated primary particles, whereas the latter are suggested to better compensate anisotropic lattice stress and decrease amount of microcracks, consequently minimizing further rise in surface area and the accompanied failure cascades (e.g., phase changes, metal dissolution, and crosstalk). Moreover, the different incorporation routes are shown to reveal different outcomes and demonstrate the complexity and sensitivity of W incorporation.","PeriodicalId":29791,"journal":{"name":"Small Science","volume":null,"pages":null},"PeriodicalIF":12.7,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141612595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 in the Synthesis and Application of Monolayer 2D Metal-Organic Framework Nanosheets 单层二维金属有机框架纳米片的合成与应用的最新进展

IF 12.7

Small Science Pub Date : 2024-07-10 DOI: 10.1002/smsc.202400132

Yu Wang, Juan Ma, Fei Jin, Tong Li, Negar Javanmardi, Yuyuan He, Guanzhou Zhu, Siwei Zhang, Jian-Da Xu, Ting Wang, Zhang-Qi Feng

引用次数: 0

Fractal Characterization of Simulated Metal Nanocatalysts in 3D 三维模拟金属纳米催化剂的分形表征

IF 12.7

Small Science Pub Date : 2024-07-09 DOI: 10.1002/smsc.202400123

Jonathan Y. C. Ting, George Opletal, Amanda S. Barnard

{"title":"Fractal Characterization of Simulated Metal Nanocatalysts in 3D","authors":"Jonathan Y. C. Ting, George Opletal, Amanda S. Barnard","doi":"10.1002/smsc.202400123","DOIUrl":"https://doi.org/10.1002/smsc.202400123","url":null,"abstract":"The surface roughness of metal nanoparticles is known to be influential toward their properties, but the quantification of surface roughness is challenging. Given the recent availability of large-scale simulated data and tools for the computation of the box-counting dimension of simulated atomistic objects, researchers are now enabled to study the connections between the surface roughness of metal nanoparticles and their properties. Herein, the relationships between the fractal box-counting dimension of metal nanoparticle surfaces and structural features relevant to experimental and computational studies are investigated, providing actionable insights for the manufacturing of rough nanoparticles. This approach differs from conventional concepts of roughness, but introduces a possible indicator for their functionalities such as catalytic performance that was not previously accessible. It is found that, while it remains difficult to consistently correlate the dimension with the catalytic activity of surface facets, matching trends with their surface energy, thermodynamic stability, and number of bond vacancy are observed. This highlights the potential of fractal box-counting dimensions to rationalize catalytic activity trends among metal nanoparticles, and opens up opportunities for the design of nanocatalysts with better performance via surface engineering.","PeriodicalId":29791,"journal":{"name":"Small Science","volume":null,"pages":null},"PeriodicalIF":12.7,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141612505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0