Fabrication of Titanium dioxide nanorod arrays-based UV photosensor from low-concentration of Titanium (IV) butoxide with hydrochloric acid

2016 IEEE Student Conference on Research and Development (SCOReD) Pub Date : 2016-12-01 DOI:10.1109/SCORED.2016.7810075

M. M. Yusoff, M. H. Mamat, M. F. Malek, A. S. Ismail, S. Saidi, M. Rusop

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引用次数: 4

Abstract

A novel and facile method at lowest concentration of titanium (IV) butoxide with hydrochloric acid at 150 °C temperature for 3 hours was implemented for the growth of Titanium dioxide (TiO2) nanorod arrays (TNAs) on fluorine-doped tin oxide (FTO) glass substrate. The deposited TNAs were characterized by field-emission scanning electron microscopy (FESEM), and ultraviolet-visible (UV-Vis) spectrophotometer. Self-powered UV photosensor was designed based on photo-electrochemical cells (PEC) using the deposited TNAs as photo anodes. The performance of the fabricated UV photosensor was studied based on its photo-generated current and response under UV irradiation (365 nm). The fabricated UV photosensor displays fast response and recovery time under an ON/OFF state of UV irradiation with comparatively high sensitivity. The photosensor fabricated at the lowest 0.05 M of titanium (IV) butoxide with hydrochloric acid of TNAs exhibits photo-sensing property as photo-anodes, and can be implemented for the application of UV photosensor. Large surface area of TNAs leads to the high generation of photocurrent and shows increment in conductivity under UV irradiation.

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用低浓度丁氧化钛与盐酸制备二氧化钛纳米棒阵列紫外光传感器

采用一种新颖、简便的方法，在低浓度丁二氧化钛(IV)和盐酸的作用下，在150℃温度下生长3小时，在氟掺杂氧化锡(FTO)玻璃衬底上生长二氧化钛(TiO2)纳米棒阵列(tna)。用场发射扫描电镜(FESEM)和紫外可见分光光度计(UV-Vis)对所沉积的tna进行了表征。采用沉积的tna作为光阳极，设计了基于光电化学电池(PEC)的自供电紫外光传感器。在365 nm紫外光照射下，研究了所制备的紫外光传感器的光生电流和响应特性。所制备的紫外光敏器在紫外辐照的开/关状态下具有较快的响应速度和恢复时间，灵敏度较高。在最低0.05 M的丁氧化钛(IV)中加入tna的盐酸制备的光传感器具有光阳极的光敏性能，可实现紫外光传感器的应用。大的表面积导致高的光电流产生，并在紫外线照射下显示出电导率的增加。

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2016 IEEE Student Conference on Research and Development (SCOReD)

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