Phosphor Materials for Cathode-Ray Tubes

Hase, T.; Kano, Tsuyoshi; Nakazawa, Eisuke; Yamamoto, Hajime

doi:10.1016/s0065-2539(08)60600-9

Cited by 140 publications

(84 citation statements)

References 103 publications

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“…The novel and distinctive properties of nanophosphors arise due to their quantum confinement and large surface to volume ratio. The luminescent properties such as surface luminescence, emission lifetime, luminescence quantum efficiency and concentration quenching strongly depend on the particle size of the phosphor in the nanoregime (Sun and Murray 1999;Suryanarayana 1995;Kruis et al 1998;Hase et al 1990). Hence, in the field of practical phosphors, extensive research has been focused on the synthesis of nanophosphors with improved and consistent efficiency; consequently, the conventional phosphors were replaced by nanophosphors in many of the fields (He et al 2003;Jose et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Structural studies and luminescence properties of CeO2:Eu3+ nanophosphors synthesized by oxalate precursor method

et al. 2014

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A novel synthesis strategy to prepare CeO 2 :Eu 3? nanophosphors and its luminescence behavior is reported. Different structural characterization techniques such as X-ray diffraction, transmission electron microscope and thermogravimetric analysis reveal that thermal decomposition of oxalate precursor is an effective pathway to produce rare earth oxide nanocrystals. Optical characterizations of the CeO 2 :Eu 3? were done by UV-Visible absorption, photoluminescence excitation and emission spectra. The presence of structural defects and their role on the band gap and luminescence were discussed on the basis of absorption and emission studies.

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Section: Introductionmentioning

confidence: 99%

Structural studies and luminescence properties of CeO2:Eu3+ nanophosphors synthesized by oxalate precursor method

et al. 2014

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“…Y 2 O 3 :Eu 3+ has a lumen equivalent brightness of 70% relative to 611 nm light and radiant efficiency of about 8.7% with better saturation without any detrimental effects. 7,8 With the rapid advancement of biotechnology, nanoparticles of doped lanthanide oxides can be used as promising labels because of their above mentioned optical properties, lack of photobleaching, and long luminescence lifetime ͑ϳ1 ms͒.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and magnetic characterizations of manganite-based composite nanoparticles for biomedical applications

Pradhan

Bah

Konda

et al. 2008

Journal of Applied Physics

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We report chemically synthesized highly crystalline lanthanum strontium manganite ͑LaSrMnO 3 ͒ and Eu-doped Y 2 O 3 and their composites. The synthesis yields nanoparticles of size 30-40 nm. Magnetic measurements performed on nanoparticles and composites show magnetic transition at about 370 K with a superparamagnetic behavior at room temperature. The ferromagnetic resonance studies of the nanoparticles show large linewidth due to surface strains. The composite nanoparticles also display luminescent behavior when irradiated with ultraviolet light. The manganites as well their composite with the luminescent nanoparticles may be very useful for biomedical applications.

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“…In liquid crystal display panels (see below), phosphors serve as a backlighting source excited by ultraviolet light. In electroluminescent (EL) display technology, pixels or a backlighting panel can be excited by electrical current (37)(38)(39)(40)(41). The conditions under which phosphors are required to operate present challenges.…”

Section: Displaying Information: Phosphors Leds and Liquid Crystalsmentioning

confidence: 99%

The Computer as a Materials Science Benchmark

et al. 1998

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When initially asked to prepare this Viewpoints piece on materials science, we selected the computer for the story line because of the breadth of materials it encompasses and its profound effect upon our lives. In no way, however, were we prepared for just how rapidly the materials and technologies associated with this remarkable tool are changing. During the four months over which this article was written-from our initial outline in August 1997 until the time it was completed in December 1997-it seemed that each time we developed a draft, a new technology was announced: IBM, for example, trumpeted a shift from aluminum to copper conductors in integrated circuits and introduced new magnetic read heads based on the giant magnetoresistance phenomenon during this period. Both of these advances will lead to faster, more powerful computers. Thus, writing this article has given us a distinctly unsettling but nonetheless exhilarating sense of how rapidly materials science is moving. We will not be surprised if, by the time you read this article, some of the materials and processes described will already have been outperformed and displaced, as suggested by the logarithmic plots that dot the landscape of this article. But what we hope will be conveyed is the breakneck pace at which this field is moving, and the vast potential and excitement it holds for all of us.

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Phosphor Materials for Cathode-Ray Tubes

Cited by 140 publications

References 103 publications

Structural studies and luminescence properties of CeO2:Eu3+ nanophosphors synthesized by oxalate precursor method

Structural studies and luminescence properties of CeO2:Eu3+ nanophosphors synthesized by oxalate precursor method

Synthesis and magnetic characterizations of manganite-based composite nanoparticles for biomedical applications

The Computer as a Materials Science Benchmark

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