This paper aims to propose a 3D nanostructured organic-inorganic hybrid photovoltaic device based on the ZnO
nanostructures/poly(3-hexylthiophene)(P3HT):TiO<sub>2</sub> nanorods hybrids by solution processes at low temperature. An array
of ZnO nanorods with a larger size of ~50 nm in diameter and ~180 nm in length are grown to provide direct pathways
for efficient charge collection. TiO<sub>2</sub> nanorods with a size of ~5 nm in diameter and ~20-30 nm in length are incorporated
into polymer to facilitate charge separation and transport by providing increased interfacial area and more effective
transport pathway. The device performance with the inclusion of TiO<sub>2</sub> nanorods exhibits a seven times increase in the
short circuit current with respect to that without TiO<sub>2</sub> nanorods.