APPLICATION
Raman Spectroscopy has been widely used in analyze solid and liquid phase sample, but not so much in gas phase sample . Main problem is, normally, the gas phase molecular under the laser illumination is too much less than the same laser illuminate the liquid or solid phase sample. So that, in generally, the Raman signal scattered from the gas phase sample will be too weak to be detected.
Endoscopy technology has been widely used in the field of pre-medical diagnosis. With the development of endoscopy technology, the interaction between light and biological tissues has play a role in early diagnosis and disease prevention. Various optical methods (such as reflection, absorption, fluorescence, scattering, etc.) have been used.
Raman spectrum is the fingerprint spectrum of molecular vibration. Different material molecules have different vibration frequency, so it is often used as an important basis for material identification. It has the advantages of simple operation, high sensitivity and good repeatability. In this paper, through the Raman spectrometer quantitative analysis of silica dust samples, through the experiment to prove the feasibility of its application in the field of analysis of dust.
概念解释:暗场显微(英文:Dark-field microscopy)或称暗视野显微(英文:Dark ground microscopy)描述光学显微和电子显微中的一种特殊显微手法,除去观测物体以外的光线或电子进入物镜,使目镜中观测到的视野背景是黑的,只有物体的边缘是亮的。利用这个方法能见到小至 4~200nm的微粒子,分辨率可比普通显微法高50倍。
硫化铟(In2S3 )[1]是一种具有极高潜在利用价值的半导体材料,可作为CIGS薄膜太阳能电池的缓冲层材料,并有望作为Cds缓冲层的替代材料,在光伏与光电器件上有很好的应用前景。 In2S3在常温常压下比较稳定,属于立方晶系,具有四面体和八面体的空间结构,并存在高密度的In空位。 一般存在α、β、r 3种相,常温下稳定的为β 相。