1)打开白光; 2)点击摄像机; 3)调节粗焦向下移动至光斑聚集成点(若载玻片位置与镜头偏移过大,利用操作杆前后左右移动来调整,调整后再移动粗焦); 4)关闭室内灯光; 5)眼睛注视电脑,继续缓慢移动粗焦(一定要慢,防止镜头与载玻片相撞),当出现第一个清晰画面时,左右移动操作杆,观察画面是否移动,若不动,则可判断...
反过来,我们也可以利用拉曼光谱的变化来研究电极材料发生的改变。与原位XRD相比,原位Raman具有独特的优势,它可以用来研究那些非晶体或者结晶性很差的材料,也适于研究界面处的反应。加拿大University of Western的孙学良课题组就采用原位Raman研究了全固态Li-Se电池中Se正极的电化学反应机理[5]。该论文首次报道了可逆的界面...
PtRu/C catalyst before and after a lifetime test in a proton exchange membrane fuel cell (PEMFC) has been characterized in-situ using Raman spectroscopy. It was found that the formation and stability of ruthenium oxide were extremely sensitive to atmospheres and less dependent on temperatures in ...
ReactRaman™ enables scientists to monitor reactions and crystallization processes in situ and in real time, providing highly specific information about reaction kinetics, mechanism, pathways, polymorph transitions, and the influence of reaction variables on the process. Using ReactRaman, scientists direct...
Raman spectroscopy has proven to be a unique analytical tool for studying electrode materials of lithium-ion batteries due to its ability to probe structural changes at the level of chemical bonds. In this work, the calculated Raman spectrum of α-Li3V2(PO4)3 provided by density functional th...
Topological insulators (TIs) are a new state of quantum matter with a band gap in bulk and conducting surface states. In this work, the Raman spectra of topological insulator Bi2Te3 films prepared by molecular beam epitaxy (MBE) have been measured by an in situ ultrahigh vacuum (UHV)-MBE...
We developed a Raman spectroscopy-based approach for simultaneous study of redox changes inc-andb-type cytochromes and for a semiquantitative estimation of the amount of oxygenated myoglobin in a perfused rat heart. Excitation at 532 nm was used to obtain Raman scattering of the myocardial surface...
Raman microprobe scattering is shown to be a useful noninvasive real-time probe during thin film processing. Applications during laser-assisted processing that are relevant to microelectronics are emphasized.!34Irving P. HermanColumbia Univ.New YorkNYUSA.Process Module Metrology, Control and Clustering...
The Raman wavenumber of the symmetric stretching vibration of carbonate ion (ν1-CO32−) was measured in three aqueous solutions containing 2.0 mol·L−1 Na2CO3 and 0.20, 0.42, or 0.92 mol·L−1 NaCl, respectively, from 122 to 1538 MPa at
Raman micro-spectroscopy is a label-free and non-destructive biochemical fingerprint technology17,18,19. It is able to provide intrinsic ‘phenotypic profile’ of single cells17, revealing gene expression20, biosynthesis of compounds21, cell specific components22, characteristic structures, physiological ...