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采用水热法,在FTO衬底上生长纳米棒状结构,进一步SEM分析,TiO2纳米棒状结构的周围及尖端由花状结构组成。将这种结构与镀金的FTO衬底组装成探测器,在紫外光照下的光电流密度是黑暗情况下的12倍(IUV/Idark=12),响应时间为2s,光电流衰减时间为5s,表明该结构具有很好的紫外光探测性能。而且这种结构的探测器无需外加电压,表现出自驱动性能,并且对其光化学机理作了分析。
Hydrothermal method was used to grow nanorods structure on FTO substrate. Further SEM analysis showed that the periphery and tip of nanostructured TiO2 nanorods consisted of flower-like structures. The structure and the gold-plated FTO substrate assembled into a detector, the photocurrent density under UV light is 12 times dark (IUV / Idark = 12), the response time of 2s, photocurrent decay time of 5s, It shows that the structure has good UV detection performance. And this structure of the detector without external voltage, self-driving performance, and its photochemical mechanism was analyzed.