| 1. | The experimental results showed that the visible absorption spectrum of stdin and stdbt display a dramatic shift in the long wave
3 .钙荧光探针stdin对活性氧的耐受性和在hzo :对hl一60细 |
| 2. | ( 6 ) optical properties of cdse nano - wire arrays / aam composite were investigated by the measurements of uv - visible absorption spectrum , pl curve and resonance raman spectrum
结果表明: cdse纳米线阵列/ aam复合物中含有cdse纳米线，且这些纳米线大小一致、密度较大、规整排列成阵列。 |
| 3. | The morphological features , the inclusion features , the ultraviolet - visible absorption spectrum , infrared spectrum and the cathodoluminescence features of the flux - grown synthetic spinel provide reliable evidence for identification
助熔剂法合成尖晶石的晶体形貌特征和包裹体特征以及紫外可见吸收光谱、红外光谱和阴极发光特征为其鉴定提供了可靠的依据。 |
| 4. | The uv - visible absorption spectrum showed the as - prepared aam templates were transparent within visible light , and the pl curve showed the as - prepared aam templates had a blue pl band in wavelength range of 400nm ~ 60qnm which originated from singly ionized oxygen vacancies
从光致发光特性曲线发现，纳米孔阵列aam在400一600nm之间有一个蓝色发光带，该发光带来源于单离子氧空位。 |
| 5. | The infrared absorption spectra and ultra - visible absorption spectra were measured . it was analyzed that the absorption side of in : linbo3 doped with virous concentrations of in shifted in comparison with that of pure linbo3 in normal site after the nb at li site was substituted completely
测试了in ： linbo _ 3晶体的红外吸收光谱和紫外-可见吸收光谱，分析了不同掺杂浓度的in ： linbo _ 3晶体的吸收边相对移动的现象，确定了in ~ ( 3 + )的掺杂阈值浓度为2mol 。 |
| 6. | The zno particles are excited by ultraviolet ( uv ) exciting light ( 365 nm ) , showing two photoluminescence ( pl ) peaks / bands , centered at 2 . 90 ev ( blue ) and 2 . 23 ~ 2 . 41 ev ( yellow - green ) , respectively . the intensity of the yellow - green band was reduced after the product had been annealed in n2 and o2 at 350 c for 1h . ultraviolet visible absorption spectrum shows that the zno absorbs ultraviolet light intensely
对于复合h ps zno结构的发光机制，认为是纳米h价带中的电子在紫外光的激发下，跃迁到zno的导带，从而处于激发态，由于多孔硅的导带比氧化锌的导带低， zno导带中处于激发态的电子很快跃窜到多孔硅的导带，然后再与h价带中的空穴发生复合，发出可见光。 |
| 7. | It is a very excellent basis for template - electro - deposition preparation of cdse nano - wire arrays . ( 3 ) optical properties of aam with nano - pore arrays were investigated by the measurements of uv - visible absorption spectrum and photoluminescence ( pl ) curve , which were the foundation to study optical properties of cdse nano - wire arrays / aam composite , cdse nano - wire arrays and cdse nano - wire
( 3 )通过对纳米孔阵列aam的紫外-可见光吸收谱和光致发光特性曲线的测试分析，为研究以纳米孔阵列aam做模板制备的cdse纳米线阵列aam复合物、 cdse纳米线阵列以及cdse纳米线的光学性质奠定了基础。 |
| 8. | All data indicated that f i was a pure substance . third , using modern analytic techniques such as nucleic magnetic resonance ( nmr ) , infrared spectroscopy ( ir ) , ultraviolet visible absorption spectra ( uv ) and mass spectrometry ( ms ) , we analyzed the basic chemical structure of f i and nominated it phthalic acid di ( 3 - methyl ) nanyl ester ( pdne ) . we estimated primarily it was a novel natural compound
第三，利用核磁共振，红外光谱，紫外分析，质谱等现代分析测试技术对分离提取物f进行结构鉴定，解析出f的结构，初步推断该物质为邻苯二甲酸- ( 3 -甲基)壬酯( pdne ) ，根据目前所掌握的资料，还没有检索到该物质相关的报道，初步认定为一种新型的天然产物。 |
| 9. | Their optical properties are characterized by z - can technique , uv - visible absorption spectrum and so on . the experimental results indicate that although large nonlinear refractive index is observed in two pbs / cds systems with different band gap , the sample of bigger band gap exhibit obvious nonlinear absorption in the range of nonresonance
另外，我们改变制备条件，得到了光学带隙不同的pbs cds纳米复合体系，并采用z -扫描技术研究了它们的非线性光学性质。两个样品都具有大的非线性折射率，但光学带隙大的样品在非共振区域表现出明显的非线性吸收。 |
