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LPPPs, blends

On the other hand, very respectable performances were demonstrated by blends of PT with other emitting polymers, as exemplified by a yellow-emitting blend of LPPP 514b with 396 (4>el = 4.2%) [521]. Furthermore, easy functionalization of the thiophene nucleus and its electron-... [Pg.213]

Nanoparticles of the conjugated polymers Me-LPPP and MEH-PPV were produced with the miniemulsion method. Monolayer of the particles on glass with ITO coating was prepared by spin-coating. The content of components in Me-LPPP MEH PPV blend is 2 1. [Pg.233]

The MEH PPV component of the composite absorbs light of a green laser, but Me-LPPP component does not absorb this light. The light of the red laser is not absorbed by both components of Me-LPPP MEH PPV blend [4]. [Pg.233]

FIGURE 8.20. Electroluminescence (recorded from an ITO/m-LPPP PPDB/Al device with a bias voltage of 15 V 4poiymer 85 nm) and photoluminescence (Xexcilalion = 420 nm) spectra of the m-LPPP/PPDB blend depending on the PPDB concentration in the blend. [Pg.232]

The internal color conversion in the m-LPPP PPDB blend can also be used to realize a stable white EL emission, which could be applied to realize a multicolor display according to the method in Sec. 8.2 or it could be used as backlight (e.g., for LCDs).137 140... [Pg.232]

Also, m-LPPP is very suitable to act as an active layer in LECs 150 by using a blend of m-LPPP, PEO, and LiCF3SC>3 in a weight ratio of 20 10 3, luminance values of around 250 Cd/m2 were obtained at an operating voltage of 10 V.150 The reported values for the external EL quantum efficiencies (0.3%)150 of these LECs are below that obtained for ITO/m-LPPP/Al LEDs (jjel <1% see Sec. 8.1), but the threshold voltages of the LECs are distinct below that for LEDs. [Pg.234]

FIGURE 8.23. Time response of the current (square) and the EL (circle) of LEC based on a blend of m-LPPP PEO LiCF3S03=20 10 3 under pulsed excitation (solid line-voltage pulse dash-dot line-EL emission). [Pg.237]

Scheme 30 Perylene-based polymer used in blends with Me-LPPP... Scheme 30 Perylene-based polymer used in blends with Me-LPPP...
See other pages where LPPPs, blends is mentioned: [Pg.369]    [Pg.369]    [Pg.170]    [Pg.483]    [Pg.7]    [Pg.202]    [Pg.223]    [Pg.244]    [Pg.245]    [Pg.230]    [Pg.231]    [Pg.231]    [Pg.231]    [Pg.232]    [Pg.234]    [Pg.313]    [Pg.314]    [Pg.24]    [Pg.24]    [Pg.24]    [Pg.710]    [Pg.744]    [Pg.865]   
See also in sourсe #XX -- [ Pg.24 ]



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