TiO_2纳米管制备及其在染料敏化太阳能电池中的应用

Hydrothermal synthesis of TiO_2 nanotubes and its application in dye-sensitized solar cells

采用强碱水热法由钛粉和NaOH溶液水热反应合成二氧化钛纳米管,并用透射电子显微镜(TEM)、扫描电子显微镜(SEM)、X-射线电子衍射(XRD)等表征手段对反应产物进行表征.该方法制备的二氧化钛纳米管长度为200~300 nm,管径为20~25 nm.采用丝网印刷技术将二氧化钛纳米管粉末印制在掺杂氟的SnO2导电玻璃(FTO)上,并进行热处理.随后,将印制了薄膜的FTO导电玻璃浸泡在染料中,浸泡一段时间后,将其与导电面涂了铂的FTO导电玻璃组装成染料敏化太阳能电池,并对电池性能进行测试.在模拟太阳光照射下,该电池的填充因子为0.43,短路电流为0.48 mA,断路电压为0.35 V,光电转换效率为0.07%.

Titanium and high concentration sodium hydroxide solution was used to synthesize titania nanotube via hydrothermal method.The nanotube was characterized by SEM,TEM,and XRD.The length of the nanotube is about 200~300nm,the diameter is about 20~25nm.The nanotube was screen-printed on the FTO glass,and then it was treated with heating.After being sintered the TiO2 electrode was immersed into a N719 dye solution,then assembled with another FTO glass coated with platonic.Photovoltaic measurement of DSC employed ...