ジフェニル[9,9'-スピロビ[9H-フルオレン]-2-イル]ホスフィンオキシド9,9-スピロビフルオレン-2-イルジフェニルホスフィンオキシド9,9-spirobifluoren-2-yl-diphenyl-phosphine oxide9,9’-spiro[fluoren]-2-yl dipenyl phosphine oxideDiphenyl-9,9'-spirobi[9H-fluoren]-2-ylphosphine oxidePhosphine oxide, diphenyl-9,9'-spirobi[9H-fluoren]-2-yl-Diphenyl[9,9'-spirobi[9H-fluoren]-2-yl]phosphine Oxide (This product is only available in Japan.)
説明SPPO1, 9,9-Spirobifluoren-2-yl-diphenyl-phosphine oxide has a spirobifluorene structure with an electron deficient polar diphenyl-phosphine oxide moiety attached. The polarity in the P=O double bond can lead to a high triplet energy state, which is highly desirable in host materials for an efficient host-to guest energy transfer in an OLED.