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超细碱土铝酸盐长余辉发光材料制备近期进展 总被引:1,自引:0,他引:1
对超细碱土铝酸盐长余辉发光材料的制备方法及其制备后产品的性能做一综述,分别介绍了燃烧法、溶胶-凝胶法和水热法在制备超细碱土铝酸盐长余辉发光材料中的应用.着重对溶胶-凝胶法制备超细碱土铝酸盐长余辉发光材料的过程及得到的产品性能做了详细阐述. 相似文献
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系统地介绍了铝酸盐长余辉的发展历史、发光机制和制备方法,评述了铝酸盐长余辉材料研究现状,对铝酸盐长余辉材料的发展趋势进行了展望。 相似文献
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稀土发光材料具有余辉时间长、发光强度高、化学稳定性好等优点,可配制环境友好型长余辉发光涂料。介绍了该发光材料的制备方法及其发光涂料的发光机理。讨论了影响发光涂料性能的因素及其发展趋势。 相似文献
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铝酸盐长余辉材料研究进展 总被引:1,自引:0,他引:1
文章系统地介绍了铝酸盐长余辉发光材料的发展历史、发光机制以及制备方法,对近年众多的研究进行了对比分耩,展望铝酸盐长余辉材料的研究和发展趋势以及应用前景。 相似文献
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按化学式Sr0.994Al2O:Eu2+0.002,Dy3+0.004准备原料,并添加碳酸氢铵作为成孔剂,采用高温固相反应法制备了高发光长余辉材料.探究了成孔剂对长余辉材料晶体结构及余辉性能的影响.以高发光长余辉材料、含氟丙烯酸树脂、颜填料和助剂制备出标线涂料.结果表明,成孔剂的加入不改变长余辉材料的晶体结构,但能有效提高其发光强度.当颜基比为0.50,长余辉材料占填料质量的40%时,涂料中发光中心数量达到最大,发光性能趋于稳定.发光涂层经过日间环境照射后,在暗环境中可持续发光7 h以上. 相似文献
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A beryllium-based compound, bis[2-(3,5-dimethylpyrazol-1-yl)pyridin-3-olate] beryllium (DmPPBe), was designed and synthesized as a high-triplet-energy host material for blue phosphorescent organic light-emitting diodes. The DmPPBe host showed a high triplet energy of 2.75 eV due to the high-triplet-energy 2-(3,5-dimethylpyrazol-1-yl)pyridin-3-ol ligand. The DmPPBe host was effective as the host material for blue phosphorescent organic light-emitting diodes and a high quantum efficiency of 17.7 % was achieved. 相似文献
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系统回顾了铝酸盐长余辉蓄光材料的研究历程,综合评述了铝酸盐长余辉蓄光材料的长余辉机理与制备,并对其研究进行了展望。 相似文献
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Soroosh Danaee Nima Yazdanbakhsh Hamed Naghoosi Ali Sheykhinejad 《Korean Journal of Chemical Engineering》2018,35(5):1144-1150
Light is the most important factor involved in the growth of photosynthetic organisms, and low efficiency of artificial light systems imposes higher cultivation costs. Phosphorescent paints can emit light for a few hours, and so may be appropriate to accumulate scattered light. In this study, the effects of blue and green phosphorescent paints on growth rate, biomass production and chlorophyll content of three different microalgae, Scenedesmus dimorphus, Chlamydomonas reinhardtii and Chlorella vulgaris were investigated. These strains were cultivated in broth medium in three glass bowls. Half of the first two bowls was stained with blue or green phosphorescent paints (B and G treatment), while the third one was unstained and used as the control (C treatment). All measured parameters were higher in B. The results indicate that partial staining of culturing bowls by blue phosphorescent paint can be an economic approach to increase light efficiency in cultivating microalgae. 相似文献
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Color stability and suppressed efficiency roll-off in white organic light-emitting diodes through management of interlayer and host properties 总被引:1,自引:0,他引:1
Kyoung Soo Yook Soon Ok Jeon Chul Woong Joo Jun Yeob Lee 《Journal of Industrial and Engineering Chemistry》2009,15(3):420-422
Color stability and efficiency roll-off of white light-emitting diodes (WOLEDs) with blue fluorescent and red phosphorescent emitting materials were manipulated by controlling the charge transport properties of interlayer and triplet host materials. A pure white emission was observed in WOLEDs with a bipolar interlayer and a hole transport type triplet host material. A white color coordinate of (0.31, 0.35) and a current efficiency of 14.4 cd/A were obtained. In addition, color index of WOLEDs could be kept stable up to a high luminance of 10,000 cd/m2 and an efficiency roll-off was also suppressed. 相似文献
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Cheuk-Lam Ho Ching-Shan Lam Ning Sun Dongge Ma Li Liu Zhen-Qiang Yu Liqin Xue Zhenyang Lin Hua Li Yih Hsing Lo Wai-Yeung Wong 《Israel journal of chemistry》2014,54(7):999-1014
New heteroleptic cyclometalated iridium(III) 2-phenylpyridine-type complexes with trifluoromethyl substituents and various main-group moieties were synthesized and their photophysical, electrochemical, and electroluminescent (EL) properties studied. The emission color can be tuned by a facile derivatization of the phenyl moiety of 2-phenylpyridine with various main-group moieties, and we have prepared new yellowish green to orange triplet emitters with enhanced charge injection/charge transporting features, which can furnish attractive EL performance in phosphorescent organic light-emitting devices (OLEDs). Attempts were also made to fabricate two-color white-light OLEDs based on a combination of fluorescent blue and phosphorescent orange emitters. 相似文献