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| 1 | Synthesis of high-purity silver nanorods with tunable plasmonic properties and sensor behavior显示文摘Through anisotropic Ag overgrowth on the surface of Au nanobipyramids(Au NBPs), high-purity and sizecontrolled Ag nanorods(Au/Ag NRs) are obtained by a simplified purification process. The diameters of the Au/Ag NRs are determined by the size of the as-prepared Au NBPs, and the lengths of the Au/Ag NRs are tunable using different amounts of Ag precursor in the growth solution. Surface-enhanced Raman scattering(SERS) studies using Rhodamine-6G(R6G) as a test molecule indicate that the Au/Ag NRs have excellent sensing potential. The tunable optical properties and strong electromagnetic effect of the Au/Ag NRs, along with their superior SERS signal enhancement, show that Au/Ag NRs are promising for further applications in plasmon sensing and biomolecular detection. | Haiying Xu Caixia Kan Changzong Miao Changshun Wang Jingjing Wei Yuan Ni Beibei Lu Daning Shi | 2017 | Photonics Research2017,5,1: | 4 |
| 2 | Alloyed Au-Ag nanorods with desired plasmonic properties and stability in harsh environments显示文摘Bio-chemical molecular detection in the nanoscale, based on alloyed nanorods(NRs) with tunable surface plasmon resonance(SPR) properties and high chemical stability, has attracted particular interest. In this work,alloyed Au-Ag NRs with tunable aspect ratios were achieved by annealing Au nanobipyramid-directed Au@Ag core-shell NRs. The core-shell NRs were encapsulated within mesoporous silica outer shells to avoid fusion or aggregation. The structural stability of fully alloyed Au-Ag NRs, including chemical and thermal stability, is remarkably improved compared with that of Au@Ag core-shell NRs. The alloyed NRs would maintain the rod-like structure after being incubated in etchant solution, while Au@Ag core-shell NRs would decay into nanobipyramids.Additionally, fully alloyed NRs present stable morphology under annealing at high temperatures of up to 600℃ in air. Benefiting from excellent structural and chemical stabilities, the surface-enhanced Raman scattering effect based on alloyed NRs is stable in harsh environments. Taking advantage of tunable SPR properties(600–1800 nm) and excellent stability, the obtained nanostructures can serve as drug carriers. The perfect photo-thermal effect induced by the particular SPR of alloyed NRs can improve the release efficiency of drugs. | Yuan Ni Caixia Kan Longbing He Xingzhong Zhu Mingming Jiang Daning Shi | 2019 | Photonics Research2019,7,5: | 3 |
| 3 | Bifunctional ultraviolet light-emitting/detecting device based on a SnO_(2) microwire/p-GaN heterojunction显示文摘SnO_(2)has attracted considerable attention due to its wide bandgap,large exciton binding energy,and outstanding electrical and optoelectronic features.Owing to the lack of reliable and reproducible p-type SnO_(2),many challenges on developing SnO_(2)-based optoelectronic devices and their practical applications still remain.Herein,single-crystal SnO_(2)microwires(MWs)are acquired via the self-catalyzed approach.As a strategic alternative,n-SnO_(2)MW/p-GaN heterojunction was constructed,which exhibited selectable dual-functionalities of light-emitting and photodetection when operated by applying an appropriate voltage.The device illustrated a distinct near-ultraviolet light-emission peaking at∼395.0 nm and a linewidth∼50 nm.Significantly,the device characteristics,in terms of the main peak positions and linewidth,are nearly invariant as functions of various injection current,suggesting that quantum-confined Stark effect is essentially absent.Meanwhile,the identical n-SnO_(2)MW/p-GaN heterojunction can also achieve photovoltaic-type light detection.The device can steadily feature ultraviolet photodetecting ability,including the ultraviolet/visible rejection ratio(R_(360 nm)/R_(400 nm))∼1.5×10^(3),high photodark current ratio of 105,fast response speed of 9.2/51 ms,maximum responsivity of 1.5 A/W,and detectivity of 1.3×10^(13)Jones under 360 nm light at−3 V bias.Therefore,the bifunctional device not only displays distinct near-ultraviolet light emission,but also has the ability of high-sensitive ultraviolet photodetection.The novel design of n-SnO_(2)MW/p-GaN heterojunction bifunctional systems is expected to open doors to practical application of SnO_(2)microstructures/nanostructures for large-scale device miniaturization,integration and multifunction in next-generation high-performance photoelectronic devices. | TONG XU MINGMING JIANG PENG WAN KAI TANG DANING SHI CAIXIA KAN | 2021 | Photonics Research2021,9,12: | 1 |
| 4 | The structures and electronic properties of double-wall bismuth nanotubes from first-principle calculations显示文摘 | Qi Jingshan Shi Daning Jiang Xuefan | 2008 | Chem Phys Lett2008,460,13: | 1 |
| 5 | Stable structures and electronic properties of the oriented Bi nanowires and nanotubes from first-principles calculations显示文摘 | Qi Jingshan Shi Daning Zhao Jijun Jiang Xuefan | 2008 | J Phys Chem C2008,112,10: | 1 |
| 6 | Different mechanical properties of the pristine and hydrogen passivated ZnO nanowires显示文摘 | Qi Jingshan Shi Daning Wang Baolin | 2009 | Comput Mater Sci2009,46,: | 1 |
| 7 | Tranexamic acid can treat ultraviolet radiation-induced pigmentation in guinea pigs 显示文摘 | Daning L1 Yu SHI Meiyun LI | 2010 | Eur J Dermatol2010,20,3: | 1 |
| 8 | Metabolomics of eerebrospinal fluid reveals changes in the central nervous system metabolism in a rat model of multiple sclerosis显示文摘 | Noga M J Dane A Shi S | 2012 | Metabolomies2012,8,2: | 1 |
| 9 | Metabolomics of cerebrospinal fluid reveals changes in the central nervous system metabolism in a rat model of multiple sclerosis显示文摘 | Noga MJ Dane A Shi S | | 0,,02: | 1 |
| 10 | Metabolomics of cerebrospinal fluid reveals changes in the central nervous system metabolism in a rat model of multiple sclerosis显示文摘 | Marek Noga Adrie Dane Shanna Shi Amos Attali Hans Aken Ernst Suidgeest Tinka Tuinstra Bas Muilwijk Leon Coulier Theo Luider Theo Reijmers Rob Vreeken Thomas Hankemeier | 2012 | Metabolomics2012,,2: | 1 |
| 11 | Structural and Piezoelectric Properties of Sr_(0.6)Ba_(0.4)Nb_2O_6 Micro-rods Synthesized by Molten-Salt Method显示文摘Sr0.6 Ba0.4 Nb2 O6 micro-rods are prepared by the molten-salt method with K2 SO4,KCl-K2 SO4,and KCl as fluxes.It reveals that the Sr0.6 Ba0.4 Nb2 O6 synthesized with KCl as a flux exhibits a single phase with tetragonal tungsten bronze structure.The measurement of X-ray diffraction indicates that the Sr0.6 Ba0.4 Nb2 O6 micro-rods synthesized at 1 300℃are anisotropic.The morphology of the powers is examined by transmission electron microscope.It reveals that the length-diameter ratio of Sr0.6 Ba0.4 Nb2 O6 micro-rods increases with increasing annealing temperature from 900℃to 1 300℃.At 1 300℃,the rod possesses a large length-diameter ratio of 8∶1.Moreover,the analysis of the piezoelectric properties of single micro-rods using apiezo-response force microscope indicates that the domains of the material are arranged along its radial direction. | Zhang Guangbin Hu Chengchao Shi Yangguang Shi Daning | 2018 | Transactions of Nanjing University of Aeronautics and Astronautics2018,35,3: | 0 |
| 12 | High-performance self-powered ultraviolet photodetector in SnO_(2)microwire/p-GaN heterojunction using graphene as charge collection medium显示文摘Graphene monolayer has been extensively applied as a transparency electrode material in photoelectronic devices due to its high transmittance,high carrier mobility,and ultrafast carrier dynamics.In this study,a high-performance self-powered photodetector,which is made of a SnO_(2)microwire,p-type GaN film,and monolayer graphene transparent electrode,was proposed and fabricated.The detector is sensitive to ultraviolet light signals and illustrates pronounced detection performances,including a peak respon-sivity∼223.7 mA W^(-1),a detectivity∼6.9×10^(12)Jones,fast response speed(rising/decaying times∼18/580μs),and excellent external quantum efficiency∼77%at 360 nm light illumination without exter-nal power supply.Compared with the pristine SnO_(2)/GaN photodetector using ITO electrode,the device performances of responsivity and detectivity are significantly increased over 6×10^(3)%and 3×10^(3)%,respectively.The performance-enhanced characteristics are mainly attributed to the high-quality het-erointerface of n-SnO_(2)/p-GaN,the highly conductive capacity,and the unique transparency of graphene electrodes.Particularly,the built-in potential formed at the SnO_(2)/GaN heterojunction interface could be strengthened by the Schottky potential barrier derived from the graphene electrode and SnO_(2)wire,en-hancing the carrier collection efficiency through graphene as a charge collection medium.This work is of great importance and significance to developing excellent-performance ultraviolet photodetectors for photovoltaic and optoelectronic applications in a self-powered operation manner. | Tong Xu Mingming Jiang Peng Wan Yang Liu Caixia Kan Daning Shi | 2023 | Journal of Materials Science & Technology2023,,7: | 0 |
| 13 | Effective fabrication of porous Au-Ag alloy nanorods for in situ Raman monitoring catalytic oxidation and reduction reactions显示文摘Porous metal nanostructures exhibit excellent catalytic properties due to their high surface-to-volume ratios and abundant catalytic active sites. However, it is still challenging to control nanopores density and structural features in a facile route and the preparation of porous alloy nanorods for catalytic application has not been well explored. In this work, we demonstrate a synthetic strategy to fabricate highly porous Au–Ag alloy nanorods(P-Au Ag NRs) by critically dealloying Ag atoms from homogeneous solid Au–Ag alloy nanorods(Au Ag NRs). Combining the merits of the tunable plasmonic properties of noble metal nanorods, excellent stabilities of alloys, and superior catalytic activities of porous structures, we use the P-Au Ag NRs as a Raman probe for the in situ monitoring of the catalytic oxidation of 3,3',5,5' tetramethylbenzidine(TMB) and reduction of 4-nitrothiophenol(4-NTP). We also compare their compositiondependent catalytic activities. The results show that P-Au Ag NRs possess superior chemical stability and higher catalytic activity than those of core-shell structures due to synergistic structural and chemical mechanisms. This strategy provides a predictive design approach for the next-generation alloy catalysts with high-performance. | Shanlin Ke Caixia Kan Xingzhong Zhu Changshun Wang Weijian Gao Zhaosheng Li Xiaoguang Zhu Daning Shi | 2021 | Journal of Materials Science & Technology2021,,32: | 0 |