熒光躍遷 的英文怎麼說
中文拼音 [yíngguāngyuèqiān]
熒光躍遷
英文
fluorescent transition-
The fluorescence intensity of pb became weak when the crystal phase began to form in tha the lattice vibration absorbed the energy induced by the fluorescent transition
隨著體系中晶態的生成， pb離子進入晶格中，由於晶格振動所產生的聲子吸收了躍遷回落產生的發光能量， pb離子的熒光強度明顯下降。It is found that the exciting spectra is moving to long wave with the increasing of eu concentration, emission intensity is rising, the properity of red homochromy is becoming better because of the different quench concentration of emission levels 5do, 5dj and 5d2 - when the concentration of eu is up to 1. 2mol %, the emission levels 5di and 5d2 is quenching
研究發現，隨著eu濃度的增加，熒光體y2o2s ： eu激發光譜發生紅移，發射強度增大，紅色單色性變好，這是因為eu的5d0和sdl 、 5d2發射能級躍遷發光的淬滅濃度不同，當濃度1 . 2mol時，后兩者因交叉弛豫引起濃度淬滅。So the selection rule of no is analogous to that of alkali atom and different from the usual diatom molecule. the conclusion is further affirmed by the two photon fl uorescence excitation spectrum of no
為此我們利用雙光子熒光激發光譜技術對no分子所表現出的與普通雙原子分子不同的躍遷選擇定則進行了實驗驗證。The intensity of distinguishable pl peaks increased with the increasing n content in the films, and the central positions of the above two pl bands were influenced by both the content of o and n. it is suggested that these pl were originated from luminescence centers related to si - o and 0 - si - n defects
分立峰強度隨薄膜中的氮含量增加而升高，熒光帶中心位置受到氧、氮含量的影響，分析表明其熒光起源於si - o和n - si - o等復合缺陷組態能級間的輻射躍遷。The polyvinyl alcohol ( pva ) in precursor can improve the porosity and make the aperture distribution narrower. so the gels were not easily crazing when drying. simultaneously the fluorescence intensity of the dyes increased as a result of the probabilities of radiationless transitions
在先驅液中加入少量有機聚合物聚乙烯醇1 （ pva ）不僅改善了孔結構，使孔徑分佈窄，凝膠在乾燥過程中不宜開d裂，而且使摻于其中的染料分子的遷移運動受到限制；降低了非輻射i躍遷的幾率，提高了染料的熒光強度。分享友人