Enhanced Photovoltaic Performance of Nanostructured Hybrid Solar Cell Using Highly Oriented TiO2 Nanotubes

详细信息    查看全文

• 作者：Supan Yodyingyong ; Xiaoyuan Zhou ; Qifeng Zhang ; Darapond Triampo ; Junting Xi ; Kwangsuk Park ; Benjie Limketkai ; Guozhong Cao
• 刊名：Journal of Physical Chemistry C
• 出版年：2010
• 出版时间：December 16, 2010
• 年：2010
• 卷：114
• 期：49
• 页码：21851-21855
• 全文大小：282K
• 年卷期：v.114,no.49(December 16, 2010)
• ISSN：1932-7455

文摘

Highly oriented TiO₂ nanotubes have been fabricated using ZnO nanorod template through liquid reactive deposition on the ITO substrates. The diameter and length of TiO₂ nanotubes can be effectively controlled for the suitable use for a hybrid solar cell by varying the diameter and length of the ZnO nanorod template. A mixture of P3HT/PCBM was infiltrated into the gaps between TiO₂ nanotubes to form hybrid solar cells. The open circuit voltage, short circuit current density, fill factor, and power conversion efficiency of the hybrid solar cell using highly oriented TiO₂ nanotubes were 646 mV, 9.95 mA cm⁻², 51.6%, and 3.32%, respectively, much higher than 1.2% of hybrid solar cell based on ZnO nanorods tested under otherwise identical conditions and significantly higher than 0.7% of the same type hybrid solar cells reported in literature. The enhancement of the power conversion efficiency could be resulted from the highly oriented TiO₂ nanotubes with smaller diameter and large specific surface area for the efficient electron transfer in hybrid solar cells.