Photovoltaic Properties of Organic Thin-Film Solar Cell Using Various Exciton-Diffusion Blocking Materials

摘要

We studied the photovoltaic properties of organic thin-film solar cell using 8-hydroxyquinoline aluminum(Alq3),3,4,9,10-Perylenetetracarb-oxylicdianhydride(PTCDA)and Bathocuproine(BCP)as an exciton-diffusion blocking layer.Although the use of Alq3 caused comparative high open-circuit voltage,it led to much poor short-circuit current.The introduction of optimum thick BCP layer improved photovoltaic properties but the increase in BCP thickness incurred the reduction of those properties,organic thin-film solar cell with PTCDA showed stable photovoltaic properties in spite of the increase in PTCDA thickness.PTCDA was found to be one of excellent exciton-diffusion blocking materials.