猝滅譜 的英文怎麼說
中文拼音 [cùmièpǔ]
猝滅譜
英文
quenched spectra-
We have prepared a series of neodymium binary / ternary complexes, such as nd ( acac ) 3 ' 2h2o, nd ( tfa ) 3 ' 2h2o, nd ( hfa ) 3 ' 2h2o, nd ( dbm ) 3 ' h2o, nd ( acac ) 3phen, nd ( tfa ) 3phen, nd ( hfa ) 3phen, nd ( dbm ) 3phen, nd ( tta ) 3 ( tppo ) 2, nd ( hfa ) 3 ( tppo ) 2, nd ( acac ) 4hpy, nd ( tta ) 4hpy and ndq3. the effects of organic ligands, synergistic coordination agents and different substitution groups for - diketones on effective line width and photoluminescence intensity of neodymium complexes were investigated. the photoluminescence spectra indicate that synergistic coordination agents can shield neodymium ion and impede water molecules penetrating into inner coordination shell to satisfy large coordination number of nd3 + during hydrous synthesis process, so the luminescence intensity of neodymium ternary complexes is stronger than that of neodymium binary complexes
發光光譜研究表明，由於協同試劑的參與，屏蔽了水分子參與配位，降低了羥基（ oh ）對釹離子激發態能級~ 4f _ （ 3 2 ）的猝滅，三元配合物的熒光強度均比二元配合物強，其中配合物nd （ tta ） _ 3 （ tppo ） _ 2在1340nm處的熒光強度最強，適合作為摻雜的光學活性物質，來制備有源光波導材料；在有水工藝條件下，單純地氟化配體未必能提高釹配合物的近紅外發光性能。Compared with micro - sized y2o3 : eu and gd2o3 : eu phosphors prepared by a conventional method, nanosized y2o3 : eu and gd2o3 : eu synthesized by the present work, gives a clear blue shift in the emission spectrum, and a clear red shift in the excitation spectrum
同時，發現了納米晶一些新奇的發光性質，即：發射光譜藍移現象，激發光譜紅移中電荷遷移帶（ ctb ）明顯紅移，猝滅濃度提高等。Based on the theoretical analysis and experimental researches, it is presented that the wider spectra are resulted from the many fluorophores with large numbers of vibrational energy levels on the ground level in the blood cells, and the reduction of the spectral intensity is due to the reabsorption of the blood cells and the energy transfer of the collisions between the fluorophore and another one or other macromolecule. on the other hand, when the concentration of the blood cells is increased, the reabsorption of the blood cells, the secondary fluorescence due to the reabsorption and the influence of the concentration on the energy levels of fluorophores are all the factors of the red - shifted spectral peaks
在進行理論分析和研究的基礎上，提出了因血細胞中存在多種熒光團，且這些熒光團的電子能級上又存在大量的不同的振動能級，從而導致被激發的熒光團發出較寬的熒光光譜；血細胞濃度的增大，熒光團以及其他大分子之間的距離變小，造成它們之間因碰撞的能量轉移概率加大，因而易產生熒光猝滅，結果導致熒光強度的變小；血細胞溶液中重吸收所導致的熒光猝滅和二次熒光發射，以及血細胞濃度的變化對其中熒光團能級系統的影響都是導致熒光峰值波長「紅移」的原因；進而研究了led光誘導血細胞產生熒光光譜的機理。Part ii this paper has minutely studied the interaction between au ( iii ) and serum albumin. the binding of au ( iii ) to human serum albumin ( hsa ) or bovine serum albumin ( bsa ) has been studied by equilibrium dialysis at ph ( 7. 43 + 0. 02 ). the scatchard analysis indicates that there exists several strong binding sites of au ( iii ) in both hsa and bsa. a notable hysteretic effect has been observed in the interaction of au ( iii ) with hsa or bsa using uv - visible spectrometry at ph ( 7. 43 + 0. 02 ), which shows that the binding between au ( iii ) with hsa or bsa may induce a slow transition of hsa or bsa from the conformation of weaker affinity for au ( iii ) to one of stronger affinity ( a - b transition ). the rate constants and activation parameters of this transition parameters of this tansition were measured and discussed. the binding equilibrium has project supported by the national science foundation of china ( no. 299621001 ), and the foundation for talents of the ten hunred thousand in guangxi
第二部分：生理ph （ 7 . 43 0 . 02 ）條件下，用平衡透析法和紫外光譜，熒光光譜研究了金（ ）與人血清白蛋白（ humanserumalbumin ，簡稱hsa ）或牛血清白蛋白（ bovineserumalbumin ，簡稱bsa ）的結合。 scatchard圖分析表明，金（ ）在hsa或bsa中有強弱兩類結合部位，通過計算機擬合獲得結合的逐級穩定常數值。利用熒光猝滅法計算出金（ ） - hsa和金（ ） - bsa體系的stem - volmer常數和雙分子猝滅速率常數。We also have analyzed the photoluminescence ( pl ) spectra of some zno films, it turns out that the emission of ultraviolet light comes from the radiative recombination of excitons within nano - crystal energy band - gap, and the pl peaks move to smaller wavelength because zn are substituted by fe, co, and cu, which cause the size of the film grains smaller and the effective band - gap bigger. the red emission of zno films is due to, on the one hand, decrease of the film grains size which causes the emission intensity smaller and smaller until it disappears abruptly, on the other hand, the transition of electrons from deep donor level of the oxygen vacancies to the valence band
另外，我們還對薄膜光致發光性質進行了分析和研究，結果表明：納米結構zno薄膜的紫外發光來源於帶間激子的輻射復合發光， pl譜的帶邊發射峰發生藍移是由於fe 、 co 、 cu對zn的替代使薄膜粒子的尺寸減小，使薄膜的有效帶隙增寬； zno薄膜的紅色發光，一方面是zno顆粒尺寸的減少，帶間的激子發射峰越來越弱直至猝滅，另一方面主要是與zno晶格中的o空位有關，由深能級復合發光引起紅光發射。分享友人