【摘 要】
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Measuring the microscopic temperature of graphene is challenging. We used cholesteric liquid crystal microcapsules (CLCMs) as temperature sensors to detect the local temperature of three-dimensional porous graphene through quantitative visualization. Base
【机 构】
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CollegeofElectronicandOpticalEngineering
【出 处】
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ChineseOpticsLetters
论文部分内容阅读
Measuring the microscopic temperature of graphene is challenging. We used cholesteric liquid crystal microcapsules (CLCMs) as temperature sensors to detect the local temperature of three-dimensional porous graphene through quantitative visualization. Based on a CLCM (～20 μm in size), we determined the temperature variation in a small area with an accuracy of 0.1°C. By analyzing the color changes between two CLCMs, we demonstrated the temperature changes dynamically in a region with a diameter of approximately 110 μm. Furthermore, by comparing the color evolution among the three CLCMs, we visualized the anisotropic thermal properties in the micro-zone. This convenient and low-cost temperature measurement method is expected to further improve graphene-based devices.
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