| 초록 |
Organic-inorganic hybrid organometal halide perovskite is considered as promising materials for optoelectronics such as light-emitting diodes (LEDs) and solar cells, because of its interesting properties such as tunable band gap, low material cost, solution processable, and high charge-carrier mobility. In this study, we designed and successfully synthesized new organic small molecules, phosphine oxide-based electron transport materials for perovskite light-emitting diodes (PeLEDs). The phosphine oxide-based structure is considered as an efficient structural moiety for optoelectronics and which possess attractive electron mobility. Triphenylphosphine oxide was connected with quinoxaline derivative which also considered as electron deficient moiety. New electron transport materials exhibit wide band gap as well as suitable HOMO LUMO energy level. The interlayer, charge transport layer, is quite important on PeLED for enhancing efficiency of LED devices. |
