Publications
120 results found
Centeno A, Xie F, 2016, Plasmonic Enhanced Solar Cells (<i>Invited</i>), IEEE 6th International Conference on Photonics (ICP), Publisher: IEEE, ISSN: 2330-5665
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- Citations: 1
Rashid NNM, Aziz UA, Aid SR, et al., 2016, Comparison of Theoretical and Experimental Analysis of P and Sn Co-implantation in Germanium, IEEE Conference on Industrial Electronics and Applications, Publisher: IEEE, Pages: 389-392, ISSN: 2156-2318
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- Citations: 1
Jawad Z, Xie F, Jiao LR, 2015, Applications of Nanotechnology in the Management of Cancer Miniature Technology, Great Potential, JAMA SURGERY, Vol: 150, Pages: 1184-1185, ISSN: 2168-6254
Wu X, Zhang X, Price D, et al., 2015, Broadband plasmon photocurrent generation from Au nanoparticles/ mesoporous TiO2 nanotube electrodes, Solar Energy Materials and Solar Cells, Vol: 138, Pages: 80-85, ISSN: 0927-0248
There has been an increasing interest in plasmon-induced enhancement of solar cells and more recently in the direct generation of photocurrent using noble metal nanoparticles with their Localised Surface Plasmon Resonance (LSPR) in the visual part of the spectrum. In this paper we report broadband plasmon photocurrent generation using novel Au nanoparticle incorporated mesoporous TiO2 nanotube electrodes. Plasmonic induced photocurrent due to hot electrons is observed over a broad wavelength range (~500 to 1000 nm). Incident photon-to-electron conversion efficiency (IPCE) measurements undertaken showed a maximum photocurrent enhancement of 200 fold around 700–730 nm wavelength.
Wang T, Costan J, Centeno A, et al., 2015, Broadband enhanced fluorescence using Zinc-Oxide nanoflower arrays, Journal of Materials Chemistry C, Vol: 3, Pages: 2656-2663, ISSN: 2050-7534
ZnO nanostructures were fabricated into flower-like nanoscale arrays by the hydrothermal growth of ZnO nanowires onto a self-assembled monolayer of polystyrene spheres on a glass substrate. Fluorescent molecules conjugated with streptavidin were incubated on glass with 3-(glycidoxypropyl) trimethoxysilane (GPTS) modified and biotinylated bovine serum albumin (bBSA) attached (GPTS–bBSA), aligned ZnO nanorod arrays and ZnO nanoflower arrays, respectively. An enhancement factor of up to 45 was obtained from ZnO nanoflower arrays, compared to less than 10 for the aligned nanorods. More importantly, using the same substrate, we observed a broadband fluorescence enhancement. The level of enhancement obtained from the nanoflower arrays is comparable with that from Metal Enhanced Fluorescence. The broadband nature of this process makes it an attractive alternative for fluorescent based device development.
Centeno A, Xie F, 2015, An electromagnetic study of metal enhanced fluorescence due to immobilized nanoparticle arrays on glass substrates, 5th International Conference on Advanced Nanomaterials (ANM), Publisher: ELSEVIER SCIENCE BV, Pages: 94-100, ISSN: 2214-7853
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- Citations: 4
Donchev E, Pang JS, Gammon PM, et al., 2014, Erratum to: The rectenna device: From theory to practice (a review) — CORRIGENDUM (10.1007/10.1557/mre.2014.6), MRS Energy and Sustainability, Vol: 1
The article contains the following errors: Page 23, left column, line 19. The sentence should read: Another requirement for the insulator is a small dielectric constant since for small area devices the capacitance is reduced, however due to the requirements for tunneling the ultra-thin thicknesses in turn increase capacitance, which has to be kept to a minimum as per Eq. (2). Page 25, left column, line 1. The sentence should read: If the thickness of the higher electron affinity insulator is increased relative to the other insulator, then the QW will be wide enough to form resonant energy levels. The author regrets these errors.
Donchev E, Pang JS, Gammon PM, et al., 2014, The rectenna device: From theory to practice (a review), MRS Energy and Sustainability, Vol: 1
This review article provides the state-of-art research and developments of the rectenna device and its two main components–the antenna and the rectifier. Furthermore, the history, efficiency trends, and socioeconomic impact of its research are also featured. The rectenna (RECTifying antENNA), which was first demonstrated by William C. Brown in 1964 as a receiver for microwave power transmission, is now increasingly researched as a means of harvesting solar radiation. Tapping into the growing photovoltaic market, the attraction of the rectenna concept is the potential for devices that, in theory, are not limited in efficiency by the Shockley–Queisser limit. In this review, the history and operation of this 40-year old device concept are explored in the context of power transmission and the ever increasing interest in its potential applications at terahertz frequencies, through the infrared and visible spectra. Recent modeling approaches that have predicted controversially high efficiency values at these frequencies are critically examined. It is proposed that to unlock any of the promised potential in the solar rectenna concept, there is a need for each constituent part to be improved beyond the current best performance, with the existing nanometer scale antennas, the rectification and the impedance matching solutions all falling short of the necessary efficiencies at terahertz frequencies. Advances in the fabrication, characterization, and understanding of the antenna and the rectifier are reviewed, and common solar rectenna design approaches are summarized. Finally, the socioeconomic impact of success in this field is discussed and future work is proposed.
Wu X, Scott K, Xie F, et al., 2014, A reversible water electrolyser with porous PTFE based OH− conductive membrane as energy storage cells, Journal of Power Sources, Vol: 246, Pages: 225-231, ISSN: 0378-7753
Centeno A, Ahmed B, Reehal H, et al., 2013, Diffuse Scattering from Hemispherical Nanoparticles at the Air-Silicon Interface, Nanotechnology, Vol: 24
Xie F, Pang J, Centeno A, et al., 2013, Nanoscale control of Ag nanostructures for plasmonic fluorescence enhancement of near-infrared dyes, Nano Research, Vol: 6, Pages: 495-510, ISSN: 1998-0124
Potential utilization of proteins for early detection and diagnosis of various diseases has drawn considerable interest in the development of protein-based detection techniques. Metal induced fluorescence enhancement offers the possibility of increasing the sensitivity of protein detection in clinical applications. We report the use of tunable plasmonic silver nanostructures for the fluorescence enhancement of a near-infrared (NIR) dye (Alexa Fluor 790). Extensive fluorescence enhancement of ∼2 orders of magnitude is obtained by the nanoscale control of the Ag nanostructure dimensions and interparticle distance. These Ag nanostructures also enhanced fluorescence from a dye with very high quantum yield (7.8 fold for Alexa Fluor 488, quantum efficiency (Qy) = 0.92). A combination of greatly enhanced excitation and an increased radiative decay rate, leading to an associated enhancement of the quantum efficiency leads to the large enhancement. These results show the potential of Ag nanostructures as metal induced fluorescence enhancement (MIFE) substrates for dyes in the NIR “biological window” as well as the visible region. Ag nanostructured arrays fabricated by colloidal lithography thus show great potential for NIR dye-based biosensing applications.
Xie F, Danos L, Pang J, et al., 2013, Metal induced fluorescence enhancement by Au nanostructures for fluorescent solar concentrators, 3rd International Colloids Conference - Colloids & Energy
L. Danos1, J. Pang1, A. Centeno2, M. Ryan1, D. Riley1, N. Alford1
Xie F, Centeno A, Zou B, et al., 2013, Tunable synthesis of ordered Zinc Oxide nanoflower-like arrays, JOURNAL OF COLLOID AND INTERFACE SCIENCE, Vol: 395, Pages: 85-90, ISSN: 0021-9797
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- Citations: 20
Xie F, Centeno A, Ryan MR, et al., 2013, Au nanostructures by colloidal lithography: from quenching to extensive fluorescence enhancement, J. Mater. Chem. B, Vol: 1, Pages: 536-543
Enhanced local electric fields are created by nanoparticles when pumped at wavelengths corresponding to Localised Surface Plasmon Resonance (LSPR) modes, leading to Metal Induced Fluorescence Enhancement (MIFE). This paper describes the fluorescent enhancement due to reproducible and tuneable Au nanostructures on glass substrates fabricated over large areas by colloidal lithography. Interparticle separation, particle resonance, and the fluorescent dye properties (quantum yield and emission/excitation wavelengths) are all important factors influencing the fluorescent enhancement. A maximum fluorescence enhancement of 69 times from near infra-red (NIR) dye Alexa Fluor[registered sign] 790 was observed.
Centeno A, Xie F, Alford N, 2013, Predicting the fluorescent enhancement rate by Au and Ag nanospheres using FDTD analysis, Iet Nanobiotechnology
Deng W, Xie F, Goldys E, 2013, Metal-enhanced fluorescence in the life sciences: here, now and beyond, Physical Chemistry Chemical Physics
Price D, Centeno A, Xie F, 2013, Plasmonic Fluorescence enhancement by metal nanostructures: shaping the future of bionanotechnology, Physical Chemistry Chemical Physics
Pang JS, Xie F, Centeno A, et al., 2012, Optical absorption of metal nanoparticle arrays
A study into the enhanced optical absorption due to metal nanoparticle arrays fabricated by nanosphere lithography. Prediction and measurement has been undertaken. Implementation to improve the efficiency of PV solar cells is discussed. © 2012 OSA.
Pang JS, Xie F, Centeno A, et al., 2012, Optical absorption of metal nanoparticle arrays
A study into the enhanced optical absorption due to metal nanoparticle arrays fabricated by nanosphere lithography. Prediction and measurement has been undertaken. Implementation to improve the efficiency of PV solar cells is discussed.
Xie F, Centeno A, Ryan M, et al., 2012, Tunable Fabrication of ZnO Nanoflower-like Arrays and Their Application for Sensitive Protein Detection, Amsterdam, Colloids and Nanomedicine
Centeno A, Xie F, Alford N, 2012, A Computational Study of the Coupled Emissions between Flurophores and Gold Triangular Prism Bow Tie, Progress in Electromagnetics Research Symposium, Publisher: ELECTROMAGNETICS ACAD, Pages: 765-767, ISSN: 1559-9450
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- Citations: 2
Centeno A, Xie F, Alford N, 2011, Light absorption and field enhancement in two-dimensional arrays of closely spaced silver nanoparticles, JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, Vol: 28, Pages: 325-330, ISSN: 0740-3224
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- Citations: 18
Centeno A, Xie F, Breeze JD, et al., 2011, Electromagnetic Design of Solar Collectors, Pages: 376-379, ISSN: 1931-7360
Centeno A, Xie F, Breeze J, et al., 2011, Calculations of scattering and absorption efficiencies of nobel metal nanoparticles, Applied Electromagnetics Conference (AEMC), 2011 IEEE, Pages: 1-4
Xie F, Drozdowicz-Tomsia K, Shtoyko T, et al., 2010, Silver and gold nanoparticle coated membranes applied to protein dot blots, Journal of Nanoparticle Research, Vol: 13, Pages: 613-624, ISSN: 1388-0764
Drozdowicz-Tomsia K, Xie F, Goldys EM, 2010, Deposition of Silver Dentritic Nanostructures on Silicon for Enhanced Fluorescence, The Journal of Physical Chemistry C, Vol: 114, Pages: 1562-1569, ISSN: 1932-7447
Gao Z, Xie H, Xie F, 2009, Detectable threading intercalator, US Patent 7,576,205
Gao Z, Xu G, Ying J, et al., 2009, Electrically non-conductive, nanoparticulate membrane, US Patent 7,563,588
Drozdowicz-Tomsia K, Xie F, Calander N, et al., 2009, Depolarized light scattering from colloidal gold nanoparticles, Chemical Physics Letters, Vol: 468, Pages: 69-74, ISSN: 0009-2614
Xie F, Ryan M, Riley J, 2009, Large Scale One Dimensional Nanostructure Synthesis by Template Method Using Anodic Alumina Membrane, the 216th ECS Meeting
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