短余輝 的英文怎麼說
中文拼音 [duǎnyúhuī]
短余輝
英文
short persistence; short fluorescent lag-
The study indicate that sral2o4 : tb3 + phosphor can be composed from 1250c to 1550c, the phosphor ' s luminance reduce and the afterglow time shorten along with the compounding temperature ; the better luminance and afterglow with the better crystalloid degree ; the luminescence of tb3 + ion in the sral2o4 is coming from the transition of 5d4 - 7fj ( j = 6, 5, . . . 0 ) ; the afterglow is because of the electron that seized in the trap released which integrate with the luminescence center
合成發光體亮度隨合成溫度的降低而逐漸降低，余輝時間逐漸縮短；當合成物具有較好的結晶度時，合成的發光粉不僅發光亮度高而且余輝時間長； tb ~ （ 3 + ）離子在sral _ 2o _ 4基質晶格中的發光主要來自於~ 5d _ 4 ~ 7f _ j （ j = 6 ， 5 ， … … 0 ）的躍遷；其餘輝是因為不斷有被陷阱所俘獲的電子釋放出來與發光中心復合。Then he was watching the bridge again in the sudden short trueness of the little light that was left.
接著他在那短暫的余輝中又望望那突然顯得真切的鐵橋。We researched the influences of systhesis temperature, heat preservation time, eu + concentration, reduction surrounding feeling and flux on luminescent properties of sral2o4 : eu2 + phosphors, optimized the experiment conditions and reduced systhesis temperature about 100 c. we found that the systhesized sample ' s luminescent brightness is better with increasing systhesis temperature, but the phase component is more complex. we found that the luminescence brightness of sample appear a increasing process at first, and then a reducing one with the raise of eu2 + concentration, it indicated that the luminescence brightness is not better if the eu2 + concentration is too high or low. we found that the systhesized sample can not bright at too long heat preservation time, and the luminescence brightness is lower at too short heat preservation time. we found that particle diameter is bigger, the wavelength of emission peak is longer
研究發現合成溫度高，合成樣品的發光效果好，但物相組成也較復雜； eu ~ （ 2 + ）離子在一定摻雜濃度范圍內，合成樣品的發光亮度先是出現一個提高過程，然後是一個降低過程，說明eu ~ （ 2 + ）離子濃度高或低都不利於合成樣品發光；保溫時間較長，合成樣品不發光，保溫時間較短，合成樣品發光效果不好，只有合適的保溫時間才能合成發光效果好的樣品；合成樣品的粒徑大小與發射峰的位置具有一定的關系，粒徑越大，發射峰越偏向長波方向；助熔劑對樣品的合成溫度和發光性能都有影響，助熔劑的量較低時，主要表現為助熔作用，對發光影響不大，助熔劑的量較高時，使得樣品發光亮度降低和余輝時間縮短；還原方式的不同，合成樣品的發光性能也不一樣。The atmospheric glow that remains for a short time after sunset
晚霞；余暉日落後，天空中的大氣所發散出的短暫光輝分享友人