Electron鈥揌ole Pair Model in Bulk-Limited Organic Light-Emitting Diodes
详细信息 查看全文
文摘
By using an Al quenching layer to control the exciton concentration, we obtained the direct evidence of electron鈥揾ole pair model in organic light-emitting diodes. The use of ultrathin sensing layer further illustrated that magnetoconductance is from dissociation of singlet excitons We used the space-charge-limited conductance (SCLC) transport model to theoretically study the line shape of magnetoconductance and found that in addition to hyperfine field the electron/hole mobility and space charge effect could also change the line shape of magnetoconductance.