PTT-显微拉曼-石墨烯检测

智能文字提取功能测试中

Raman SpectroscopyReference：Vol.24， No. 24|28 Nov 2016|OPTICS EXPRESS 3857Contact us： E-mail： ad@protrustech.com； http：//www.ProTrusTech.com； TEL： +886-6-2892081 MRI 532Sfor 2D MATERIALS Effects of graphene layers in IGZO/graphite-like +Ni/Sio，/Si waferspecimens on electrical and optical properties in tribotests Instrument： MRI 532S. --532 nm laser， mapping. -- For film structure identification. Purposes of graphite-like layer： 1. E日nhance fatigue and microcrack resistance.2 Improve the electrical properties. Specimen preparation： 1. Use Si wafer as substrate， and pre-grow 300nm-thick thermal Sio， film. 2. Deposit a 300nm thin polycrystalline Ni layer bythe co-sputtering of a Ni and carbon (Ni， C) layer. 3. Annealing： Elevated to 900 ℃. In the coolingprocess， C atoms were precipitated， and thegraphene layer was grown on the Ni film surface. Fig. Schematic of the solar cell. Image，Raman spectra and analysis： 1. The SEM image of the wafer specimen beforedepositing the IGZO film. 2. The peaks analysis： a) A slim and sharp peak occurs at 1583 cm-1，shows that the peak of graphene is close tothat of graphite. b)The intensity of G-band is higher than 2D-band， and thus the film is in the graphite-likematerials. Peaks at 1349 cm-1，1589 cm-1， and 2690 cm-1are identified as D-band， G-band， and 2D-band. Fig. The Raman spectra of the specimen. More information： Graphene vs Graphite： Graphene： 2D material， single layer. Graphite： 3D material， a crystalline allotrope of carbon. The number of layers increases： 1. The G-band shifts to lower wavenumber. 2. There is a linear increase in G-band intensity. 3. The 2D-band exhibits distinct band shapedifferences with the number of layers present. 4. The intensity ratio of the 2D to G-band decreases. Reference： https：//www.azom.com/article.aspx?ArticlelD=6271     MRIX及MRID激光显微拉曼，可搭载不同波长激光（荧光光谱：375nm、405nm；拉曼光谱473nm、488nm、532nm、633nmnm、785nm、808nm、830nm等），每一波长激光模组都可进行单独更换，MRID可同时搭载两种不同的波长的激光进行光谱分析。    MRIX及MRID激光显微拉曼可升级性强，预留偏振模组位置，搭配偏振模组可进行偏振分析。搭配Olympus BX43底座（可根据客户需求进行更换），可搭配多种物镜使用，可搭配电动载台进行Mapping测试等；