Lin Y.-Y.Chu T.-H.Chen C.-W.WEI-FANG SUCHUN-WEI CHEN2019-11-272019-11-27200800036951https://www.scopus.com/inward/record.uri?eid=2-s2.0-38949118654&doi=10.1063%2f1.2839405&partnerID=40&md5=99cff64e47088ae1d06d970b5bdbd51bhttps://scholars.lib.ntu.edu.tw/handle/123456789/432866In this article, the polymer photovoltaic devices based on the poly(3-hexylthiophene)/ TiO2 nanorods hybrid material is present. An enhancement in the device performance can be achieved by removing or replacing the insulating surfactant on the TiO2 nanorod surface with a more conductive ligand, which can play the role to assist charge separation efficiency or also to prevent from back recombination, giving a large improvement in the short circuit current and fill factor. The relatively high power conversion efficiency of 1.7% under simulated AM 1.5 illumination (100 mW cm2) can be achieved, providing a route for fabricating low-cost, environmentally friendly polymer photovoltaic devices by all-solution processes. © 2008 American Institute of Physics.[SDGs]SDG7Chemical modification; Heterojunctions; Interfaces (materials); Ligands; Photovoltaic cells; Short circuit currents; Conductive ligands; Heterojunction photovoltaic devices; Interface modification; Nanorodsjournal article10.1063/1.28394052-s2.0-38949118654