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| 本帖產(chǎn)生 1 個(gè) 翻譯EPI ，點(diǎn)擊這里進(jìn)行查看 | ||
miaobobo510新蟲(chóng) (初入文壇)
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[求助]
麻煩高手翻譯這段英文至漢語(yǔ)，不要機(jī)器
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| White light-emitting diodes (w-LEDs) lighting can offer many benefits, and nowadays phosphor-converted w-LEDs utilizing phosphors to convert the radiation of a near-UV or blue LED chip into white light are paid more attentions. Although yellow-emitting_Y3Al5O12:Ce31 based phosphors pumped by blue LEDs are commercial available, however, low color rendering index and high color temperature for the lack of sufficient red emission restrict its wide application As an improved way, three-band w-LEDs with excellent light quality were proposed by the combination of the blue-emitting GaN-based LED with green and red phosphors, or pumping tricolor phosphors with near-UV or violet LED. Alternatively, it is also an excellent strategy to develop a single-phase white-emitting phosphor, and the conventional single-phase white phosphors were designed with the codoped tricolor emitting activator ions and the energy transfer among them, such as Eu21-Mn21 system, Ce3+-Mn2+ system,Eu2+-Tb3+-Mn2+ system, Ce3+-Tb3+-Mn2+ system, and so on. However, the investigations on single-doped activator with full-color-emitting phosphors were rarely reported. Such a way can be principally realized by designing the activator ions entering different crystallographic sites and showing corresponding full-color emission in the single host system. Herein we reveal a new approach to realizing the color-tunable photoluminescence through spectral mixing in the composition-controlled solid-solution system, as reported in the present study of iso-structural clinopyroxene solid-solution phosphors (Na1-xCax)(Sc1-xMgx)Si2O6:Eu2+. |
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reko34
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RXMCDM: 金幣+1, 多謝應(yīng)助！ 2014-07-07 16:41:05
miaobobo510: 金幣+20, 翻譯EPI+1, 太棒了 2014-07-17 15:29:34
RXMCDM: 金幣+1, 多謝應(yīng)助！ 2014-07-07 16:41:05
miaobobo510: 金幣+20, 翻譯EPI+1, 太棒了 2014-07-17 15:29:34
| 白色發(fā)光二級(jí)光（w-LEDs）照明有很多優(yōu)點(diǎn)，如今利用磷將近紫外或藍(lán)色LED芯片的輻射轉(zhuǎn)化為白光的磷轉(zhuǎn)化w-LEDs得到更多關(guān)注。盡管由藍(lán)光LEDs驅(qū)動(dòng)的、基于Y3Al5O12:Ce31磷的黃光照明已經(jīng)用于商業(yè)用途，但低色彩渲染索引和因紅光不足導(dǎo)致的高色溫限制了其應(yīng)用。作為一種改進(jìn)方法，建議組合藍(lán)色發(fā)光的基于GaN的LED和綠磷及紅磷，或用近紫外或紫外LED驅(qū)動(dòng)三色磷，形成具有高光質(zhì)的三頻帶w-LEDs。作為另一種選擇，開(kāi)發(fā)單相白色發(fā)光磷也是個(gè)極好的策略，常規(guī)的單相白磷結(jié)合摻雜3色發(fā)光觸發(fā)離子及其相互間傳遞的能量，包括Eu21-Mn21系統(tǒng)、Ce3+-Mn2+系統(tǒng)、Eu2+-Tb3+-Mn2+系統(tǒng)、Ce3+-Tb3+-Mn2+系統(tǒng)等。然而關(guān)于全色發(fā)光磷的單摻雜觸發(fā)的研究少有報(bào)道。這種方式原理上可以通過(guò)在單一主系統(tǒng)中使觸發(fā)離子進(jìn)入不同晶位并顯示對(duì)應(yīng)的全色發(fā)光實(shí)現(xiàn)。這里我們展示一種通過(guò)混合物控制固溶系統(tǒng)中的光譜混合實(shí)現(xiàn)色彩可調(diào)光致發(fā)光的新方法，如均勻結(jié)構(gòu)斜輝石固溶磷(Na1-xCax)(Sc1-xMgx)Si2O6:Eu2+的現(xiàn)有研究所報(bào)道的。 |
2樓2014-07-07 15:37:29
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