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本文研究离子在Ni(OH)2电致变色材料中的传输特性。用电化学测试求出了离子的扩散系数。通过研究扩散系数与温度的关系,证明了离子的传输是一个在晶界间的跳跃输运过程。对于固/液两相电致变色体系,决定开关时间的主要因素是界面。样品的光密度随着其厚度的增加而线性增大,说明整个厚度内(≈3350)离子都可以参与氧化还原反应。样品的基底也是影响其电色特性的因素之一。
In this paper, the transport properties of ions in Ni (OH) 2 electrochromic materials were studied. The electrochemical diffusion coefficient of the ion was calculated. By studying the relationship between diffusion coefficient and temperature, it is proved that the transport of ions is a hopping transport process between the grain boundaries. For solid / liquid two-phase electrochromic systems, the primary factor that determines the switching time is the interface. The optical density of the sample increases linearly with the increase of its thickness, indicating that the entire thickness (≈3350 ) ions can participate in the redox reaction. The substrate of the sample is also one of the factors that influence its electrochromic properties.