This paper aims to propose a 3D nanostructured organic-inorganic hybrid photovoltaic device based on the ZnO
nanostructures/poly(3-hexylthiophene)(P3HT):TiO2 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. TiO2 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 TiO2 nanorods exhibits a seven times increase in the
short circuit current with respect to that without TiO2 nanorods.