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.
概念解釋:暗場顯微(英文:Dark-field microscopy)或稱暗視野顯微(英文:Dark ground microscopy)描述光學(xué)顯微和電子顯微中的一種特殊顯微手法,除去觀測物體以外的光線或電子進(jìn)入物鏡,使目鏡中觀測到的視野背景是黑的,只有物體的邊緣是亮的。利用這個方法能見到小至 4~200nm的微粒子,分辨率可比普通顯微法高50倍。
硫化銦(In2S3 )[1]是一種具有極高潛在利用價值的半導(dǎo)體材料,可作為CIGS薄膜太陽能電池的緩沖層材料,并有望作為Cds緩沖層的替代材料,在光伏與光電器件上有很好的應(yīng)用前景。 In2S3在常溫常壓下比較穩(wěn)定,屬于立方晶系,具有四面體和八面體的空間結(jié)構(gòu),并存在高密度的In空位。 一般存在α、β、r 3種相,常溫下穩(wěn)定的為β 相。