Quantum dot functionalized ZnO nanowire/P3HT hybrid photovoltaic devices

We report hybrid inorganic/organic photovoltaic heterojunction structures based on quantum dot functionalized nanowires. Single crystalline ZnO nanowires were first functionalized with InP/ZnS core-shell quantum dots and then embedded in a conductive polymer hole matrix to achieve a low cost, high efficiency device structure. The device structures were characterized by scanning electron microscopy, transmission electron microscopy, confocal Raman and photoluminescence spectroscopy. The obtained results show excellent interface properties between the QDs and the ZnO nanowires, a high degree of polymer infiltration into the nanowire array and improved planarization of the polymer matrix.