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alibabashiqun鐵桿木蟲 (知名作家)
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[求助]
急需翻譯下面一段話,希望是專業(yè)蟲友幫忙翻譯下。
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翻譯段落: 該基質(zhì)的電荷遷移的吸收帶位于200 nm~300 nm,據(jù)此可推測(cè)名義組成的熒光粉在200 nm~350 nm范圍內(nèi)的吸收帶是由基質(zhì)吸收引起,可看出銪離子的摻雜使得該吸收帶略為寬化。但值得注意的是:在名義組成的熒光粉的漫反射光譜中,在400 nm左右有一個(gè)小吸收,且其吸收限在420 nm之前,與LED藍(lán)光熒光粉發(fā)射波長(zhǎng)幾乎不存在重疊,這種減少的光子重吸收為其在紫外LED應(yīng)用中提供了前提;同時(shí),Eu3+相對(duì)較弱線吸收則被較強(qiáng)的電荷遷移吸收所覆蓋。因此,名義組成的熒光粉具備了作為一種應(yīng)用于紫外LED芯片的高效紅色熒光粉的重要前提。漫反射光譜與激發(fā)光譜吻合,說明熒光粉吸收的能量能夠有效地激發(fā)發(fā)光中心。 |
榮譽(yù)版主 (文壇精英)
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專家經(jīng)驗(yàn): +518 |
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該基質(zhì)的電荷遷移的吸收帶位于200 nm~300 nm,據(jù)此可推測(cè)名義組成的熒光粉在200 nm~350 nm范圍內(nèi)的吸收帶是由基質(zhì)吸收引起,可看出銪離子的摻雜使得該吸收帶略為寬化。 The charge transition band in this matrix at 200 nm to 300 nm, this feature indicates that the absorption band from 200 nm to 350 nm in nominal composition of this phosphor powder is caused by the matrix absorption, and it shows that the Eu3+-dropped yields band broadening. 但值得注意的是:在名義組成的熒光粉的漫反射光譜中,在400 nm左右有一個(gè)小吸收,且其吸收限在420 nm之前,與LED藍(lán)光熒光粉發(fā)射波長(zhǎng)幾乎不存在重疊,這種減少的光子重吸收為其在紫外LED應(yīng)用中提供了前提; It is noteworthy that there exists an absorption peak around 400 nm, which not beyond 420 nm, it is hardly overlapped by blue light LED emission wavelength, so it proved the precondition in its application in blue light LED by reducing multi-photon absorption. 同時(shí),Eu3+相對(duì)較弱線吸收則被較強(qiáng)的電荷遷移吸收所覆蓋。因此,名義組成的熒光粉具備了作為一種應(yīng)用于紫外LED芯片的高效紅色熒光粉的重要前提。 At the same time, weakly linear absorption in Eu3+ is overlapped by the strong charge transition band. Therefore, the nominal composition of phosphor powder has an important premise for being applied in UV LED (chip,可不譯出)with high efficiency red-emission. 漫反射光譜與激發(fā)光譜吻合,說明熒光粉吸收的能量能夠有效地激發(fā)發(fā)光中心。 The diffuse reflectance spectra fitted well with the excitation spectra, the results show that the energy absorbed by this phosphor powder could effectively excite the luminescence centers. |
榮譽(yù)版主 (文壇精英)
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專家經(jīng)驗(yàn): +518 |
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