Structural, optical, and scintillation characteristics of ZnO ceramics

Gorokhova, E. I.; Родный, П. А.; Локшин, Э. П.; Lott, K.; Куншина, Г. Б.; Chernenko, Kirill; Ananieva, G. V.; Eron’ko, S. B.; Khodyuk, I. V.; Gromov, O. G.; Oreschenko, Eugenia

doi:10.1364/jot.78.000753

Cited by 25 publications

(18 citation statements)

References 16 publications

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“…For instance, energy and electron transfer from plasmon resonant metal surfaces to adjoining semiconductors can dramatically alter their optical properties, making metal-semiconductor nanocomposites a new class of multifunctional optical components15, specially nanoparticles with a core/shell configuration. In fact, metal-semiconductor core/shell nanoparticles have been proposed for a variety of applications such as biomedical and pharmaceutical analysis, catalysis, and electronics1617181920.…”

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confidence: 99%

“…ZnO has been chosen as the shell material because its near-band-edge and defect-related ZnO emissions are close in energy to the plasmon resonances of Ag and Au, raising the possibility of luminescence enhancements. In addition to its potential applications in many developing technologies such as sensing2122, light harvesting23, catalysis24, drug activation for radiation therapy of cancer25, ZnO has also been utilized in the detection of ionizing radiation, for instance as a radio-luminescent, thermo-luminescent, and optically stimulated luminescence detector1620262728. Radioluminescence, the emission of light during exposure to ionizing radiation, such as X-Rays, is an instantaneous process and does not specifically involve electron trapping or charge storage.…”

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confidence: 99%

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Enhanced UV Emission From Silver/ZnO And Gold/ZnO Core-Shell Nanoparticles: Photoluminescence, Radioluminescence, And Optically Stimulated Luminescence

Guidelli

Baffa

Clarke

2015

Sci Rep

169

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The optical properties of core-shell nanoparticles consisting of a ZnO shell grown on Ag and Au nanoparticle cores by a solution method have been investigated. Both the ZnO/Ag and ZnO/Au particles exhibit strongly enhanced near-band-edge UV emission from the ZnO when excited at 325 nm. Furthermore, the UV intensity increases with the metal nanoparticle concentration, with 60-fold and 17-fold enhancements for the ZnO/Ag and ZnO/Au, core-shell nanoparticles respectively. Accompanying the increase in UV emission, there is a corresponding decrease in the broad band defect emission with nanoparticle concentration. Nonetheless, the broad band luminescence increases with laser power. The results are consistent with enhanced exciton emission in the ZnO shells due to coupling with surface plasmon resonance of the metal nanoparticles. Luminescence measurements during and after exposure to X-rays also exhibit enhanced UV luminescence. These observations suggest that metal nanoparticles may be suitable for enhancing optical detection of ionizing radiation.

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confidence: 99%

mentioning

confidence: 99%

Enhanced UV Emission From Silver/ZnO And Gold/ZnO Core-Shell Nanoparticles: Photoluminescence, Radioluminescence, And Optically Stimulated Luminescence

Guidelli

Baffa

Clarke

2015

Sci Rep

169

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“…A promising alternative to ZnO single‐crystal substrate is its polycrystalline analog—an optical ceramic. The ceramic sample is free from impurities, involved during single crystal growth process . So it is more suitable also for HTDE investigations.…”

Section: Methodsmentioning

confidence: 99%

High temperature electrical conductivity in undoped ceramic ZnO

Lott

Nirk

Gorokhova

et al. 2014

Crystal Research and Technology

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The results of high temperature electrical conductivity (HTEC) measurements in undoped ceramic ZnO sample are presented. The ceramic sample under investigation was formed at high pressure and at high temperature in inert atmosphere. HTEC measurements data were obtained under the defined Zn component vapor pressure (up to 1 atm) and in temperature range (up to 1373 K). In these experiments the absolute value of HTEC in ZnO samples was several orders of magnitude higher than in undoped ZnS measured under the same conditions. Slow chemical diffusion was observed in ZnO. Slopes of HTEC isotherms in ZnO samples varied with component vapor pressure in the range from 0 to 0.2. Defect model for explanation of this experiment is discussed.

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“…There has been a steady increase in research focusing on ZnO as a scintillating material over the last decade [41][42][43][44][45][46][47][48][49][50][51] . Some of the properties of ZnO that are appealing for scintillation applications include: high quantum efficiency light output 52 , sub-nanosecond response times 53 , and higher radiation hardness than other semiconductor materials such as Si, GaAs, or GaN 54 .…”

Section: Zno Propertiesmentioning

confidence: 99%

Zinc oxide nanowire gamma ray detector with high spatiotemporal resolution

et al. 2016

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To my mom, Linda.iii ACKNOWLEDGEMENTSThere are no words to express how grateful I am for all the people that have been part of my life during this journey. I could not have completed my PhD without their help, and I would first like to thank the two advisors that guided me through my graduate career.Professor Richard Mu accepted me as an REU student during my final summer as an undergraduate. After interacting with his group and getting a chance to do actual research in a lab, I changed my graduate path from computational physics to experimental physics and never looked back. Professor Mu's group has always felt like an extended family, where the members worked hard and helped each other without question. I also learned humility in his groupcelebrate the victories in the lab, but be mindful of the people and path that led to that point. I honestly can't begin to express how much I appreciate everything he has done to help me and my family over the years. He has been there through all of the ups and downs in my personal and professional life, and I am honored for the chance to continue to work with him in the future.Professor Richard Haglund accepted me into his group at Vanderbilt after I finished my Master's at Fisk University. I struggled at the beginning while trying to balance course work with research and family, and he gave me some of the best advice I've ever received. He told me that my future was in my hands and that I would fail or succeed based on my own actions. That motivated me to work harder than I had ever worked and is something I still carry with me today.I also want to thank Professor Haglund for instilling within me a deeper appreciation for the elegance of physics, from cascade lasers to perturbation theory. His depth of knowledge and work-life balance are inspiring, and I look forward to working with him in future projects. My mom and dad worked extremely hard to provide a solid foundation for me and my brother. I couldn't ask for better parents. My dad worked to provide for our family, and my mom put her career on hold to stay home with me and my brother. They encouraged us to reach for the stars and to always choose the right path, even if it was the more difficult one. I am who I am today due in large part to the sacrifices, encouragement, and love that my parents provided.

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Structural, optical, and scintillation characteristics of ZnO ceramics

Cited by 25 publications

References 16 publications

Enhanced UV Emission From Silver/ZnO And Gold/ZnO Core-Shell Nanoparticles: Photoluminescence, Radioluminescence, And Optically Stimulated Luminescence

Enhanced UV Emission From Silver/ZnO And Gold/ZnO Core-Shell Nanoparticles: Photoluminescence, Radioluminescence, And Optically Stimulated Luminescence

High temperature electrical conductivity in undoped ceramic ZnO

Zinc oxide nanowire gamma ray detector with high spatiotemporal resolution

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