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石墨烯薄膜層數檢測系統及檢測方法「System and method for detecting number of layers of a few-layer graphene」

專利國別: 美國  瀏覽人次: 17  發表日期: 2016-06-13 14:43:14  最後修改: 2017-11-17 09:32:23

項目 內容
本校案號 101032A
發明人 王祥辰、吳官晃、楊哲明
所屬院 工學院
所屬系所 光機電整合工程研究所
類型 發明
申請號 13/923587
申請日期 2013-06-21
公開號 US20140376799A1
公開日期 2014-12-25
證書號 US9,234,798B2
核准日期 2016-01-12
國際分類號 G01J 3/42 20060101 G01J003/42; H04N 5/357 20060101 H04N005/357; H04N 5/232 20060101 H04N005/232; G01J 3/44
專利權期間 2013.03.21~2033.03.21 (延長319天至2034.05.06)
專利摘要 1. A system for detecting a number of layers of a few-layer graphene (FLG), the system comprising: a visualization module comprising a structure for holding and illuminating an FLG sample; an acquisition module comprising a structure for performing an optical observation on the FLG sample; and a reproduction module comprising a structure operably connected to the acquisition module for providing information of detection of the number of layers of the FLG.

2. The system as claimed in claim 1, wherein the visualization module comprises a platform member and an illumination member; the illumination member comprises a structure selected from a group consisting of: a) a reflective structure projecting a light reflectively to the platform member; b) a beaming structure directly providing a light through the platform member; and c) a structure comprising both the reflective structure and the beaming structure and capable of switching between the reflective and beaming structures.

3. The system as claimed in claim 2, wherein the visualization module further comprises a magnification member comprising a structure for magnifying an image of the FLG sample held by the platform member.

4. The system as claimed in claim 3, wherein the acquisition module comprises: a charge-coupled device (hereinafter "CCD") member receiving the image magnified by the magnification member; a lens member operably connected to the CCD member for focusing the magnified image at the CCD member to provide a focused magnified image; and a capturing member operably connected to the CCD member for acquiring information of the focused magnified image.

5. The system as claimed in claim 4, wherein the reproduction module a) receives the information of the focused magnified image of the FLG sample from the capturing member, and spectrally analyzes the information of the focused magnified image, c) categorizes the information of the focused magnified image in terms of determining the number of layers of the FLG according to a database built by multispectral analyses and principal component analyses (hereinafter "PCA") for providing a relationship between a number of layers of an FLG and a distinguishing formula in order to present a categorization result, d) performs chromatic enhancement according to the categorization result, e) performs color image reproduction and f) provides a reproduced color image.

6. A method for detecting a number of layers of an FLG, the method comprising a spectral database construction process and a multispectral image reproduction process, wherein the spectral database construction process comprises a spectra-analyzing step, a PCA step, and a database constructing step, wherein in the spectra-analyzing step spectral analyses are performed for FLGs of different numbers of layers on different substrates, based on which resulting information is obtained; in the PCA step, PCA is performed with the resulting information to obtain a distinguishing formula; and in the database constructing step, a database is built based on the resulting information of the spectral analyses and the distinguishing formula to present a relationship between a number of layers of an FLG and the distinguishing formula; and the multispectral image reproduction process comprises an acquisition step, an analyzing step, a categorizing step, an enhancing step, a reproducing step, and an examining step, wherein in the acquisition step, an image of the FLG is acquired; in the analyzing step, the image is analyzed to obtain a transmission spectrum of the FLG; in the categorizing step, the transmission spectrum is categorized according to the database constructed via spectral analysis and PCA so as to obtain a categorization result; in the enhancing step, a simulation spectrum is determined based on the categorization result; in the reproducing step, a color image is reproduced with the simulation spectrum; and in the examining step, the number of layers of the FLG is determined by examining the color image.

7. A process for detecting a number of layers of an FLG, the process comprising an acquisition step, an analyzing step, a categorizing step, an enhancing step, a reproducing step, and an examining step, wherein in the acquisition step, an image of the FLG is acquired; in the analyzing step, the image is analyzed to obtain a transmission spectrum of the FLG; in the categorizing step, the transmission spectrum is categorized according to a database built by multispectral analyses and PCA for providing a relationship between a number of layers of an FLG and a distinguishing formula so as to obtain a categorization result; in the enhancing step, a simulation spectrum is determined based on the categorization result; in the reproducing step, a color image is reproduced with the simulation spectrum; and in the examining step, the number of layers of the FLG is determined by examining the color image.
專利權人 國立中正大學

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