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Enhanced electroluminescence energy transfer

Y. Ohmori, H. Kajii, T. Sawatani, H. Ueta, and K. Yoshino, Enhancement of electroluminescence utilizing confined energy transfer for red light emission, Thin Solid Films, 393 407-411 (2001). [Pg.410]

We have shown an extreme enhancement of the exciplex emission in bilayer EL as compared to PL and the appearance of weak exciton EL only through thermal activation from the exciplex at higher temperatures. At low temperatures, the exciton contribution is frozen out completely and only exciplex electroluminescence is seen. This demonstrates unambiguously that the only source of bulk excitons during electrical excitation is endothermic energy transfer from exciplex states that are generated via barrier-free electron-hole capture and confirms the work presented in Section 2.2.1 that was based on room-temperature emission from polymer blend LEDs and time-resolved PL. [Pg.66]

See other pages where Enhanced electroluminescence energy transfer is mentioned: [Pg.216]    [Pg.84]    [Pg.460]    [Pg.346]    [Pg.475]    [Pg.477]    [Pg.481]    [Pg.729]    [Pg.45]    [Pg.18]    [Pg.229]    [Pg.542]    [Pg.229]    [Pg.82]    [Pg.120]    [Pg.36]   
See also in sourсe #XX -- [ Pg.481 , Pg.482 , Pg.483 ]



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