摘要
A series of organic photovoltaic （PV） cells in which the electron acceptor and donor are gadolinium （dibenzoylmethanato）3（bathophenanthroline） and N,N′-diphenyl-N,N′bis（3-methylphenyl）-1,1′-diphenyl-4,4′-diamine , respectively, were fabricated. Although TPD acts as an active layer in the bilayered cells, insertion of a Gd-complex film between TPD and the alloy cathode is necessary for efficient carrier photogeneration. Open-circuit voltage of 3.2 V is obtained due to efficient exciton dissociation near the interface between （Gd（DBM）3bath） and TPD. By incorporating an ultrathin mixed layer of Gd-complex and TPD, external quantum efficiency is improved significantly.It was found that photovoltaic performance of the devices has a common origin, exciplex formation, which results in broadband emission during both photoluminescent and the electroluminescent processes.
A series of organic photovoltaic (PV) cells in which the electron acceptor and donor are gadolinium (dibenzoylmethanato)_3(bathophenanthroline) and N,N′-diphenyl-N,N′bis(3-methylphenyl)-1,1′-diphenyl-4,4′-diamine , respectively, were fabricated. Although TPD acts as an active layer in the bilayered cells, insertion of a Gd-complex film between TPD and the alloy cathode is necessary for efficient carrier photogeneration. Open-circuit voltage of 3.2 V is obtained due to efficient exciton dissociation near the interface between (Gd(DBM)_3bath) and TPD. By incorporating an ultrathin mixed layer of Gd-complex and TPD, external quantum efficiency is improved significantly.It was found that photovoltaic performance of the devices has a common origin, exciplex formation, which results in broadband emission during both photoluminescent and the electroluminescent processes.
出处
《中国稀土学报》
CAS
CSCD
北大核心
2003年第5期604-607,共4页
Journal of the Chinese Society of Rare Earths
