Impact of thermal stability of poly(3,4-ethylenedioxythiophene): poly(4-styrenesulfonate) used as buffer layer in organic solar cellsMinh Trung Dang, Jesus Cantú-Valle, Lionel Hirsch and Guillaume WantzEur. Phys. J. Appl. Phys., 63 3 (2013) 30201DOI: https://doi.org/10.1051/epjap/2013120371