[PDF] Top 20 Interfacial morphology in polymer light-emitting diodes

... OLEDs in the bilayer configuration exhibit enhanced injection of charge carriers and high luminous efficiency as reported by Tang et ...4 In 2001, Guo et ...efficient polymer LEDs 共PLEDs兲 using an ... See full document

... blocked in the blue layer with poor electron mobility and the electron current supplied to the first layer become ...limited. In that case Ir(mppy) 3 can trap electrons as efficiently as Ir(piq) 2 , so the ... See full document

... multilayer polymer structures by spin coating because the solvent of the second layer will dissolve the ...OLED. In the past few years many strategies were developed to overcome the dissolution problem and ... See full document

... organic light-emitting diodes 共OLED兲 have been demonstrated to reach nearly 100% internal quantum efficiency by employing triplet emitters and multilayer structures, 1,2 which usually include ... See full document

... The electroluminescence spectra of MEH-PPV devices are shown in Fig. 10. The EL spectra illus- trated that the maximum emission peaked at 585 nm with the luminescence features almost iden- tical with the ... See full document

... reported in the literature for OLED applications include enhancing the inter- facial compatibility between indium tin oxide 共ITO兲 anode and the hole transport layer 共HTL兲, enhancing adhesion and stability of HTL, ... See full document

... conditions in OLEDs was achieved largely through changing the thickness of the functional layers, this work suggests that it can be also accomplished by altering the refractive indices of the emission ... See full document

... of polymer light-emitting diodes 共PLEDs兲 in the ...the emitting layer may lead to the improvement of charge-injection balance and prevention of cathode metal quenching, resulting ... See full document

... 2005; In Final Form: January 10, 2006 High-efficiency polymer light-emitting diodes were fabricated by inserting a layer of nonionic neutral surfactant between the electroluminescent ... See full document

... the light-emitting ...1b). In general the electron-transport layer in combination with LiF/Al cathode shows similar performance to devices with ... See full document

... shown in Table 3 and Figure S9, the maximum external quantum effi ciency, and power effi ciency of the PTC-U-based device is almost ...PEDOT-PSS. In addi- tion, the consequences of different PEDOT-PSS fi lm ... See full document

... silylene-spacer in the ...the polymer prevented the formation of aggregates and improved device perfor- ...low. Light-emitting devices based on polymers containing an anthracene moiety need to ... See full document

... use in efficient and single- layer blue phosphorescent organic light-emitting diodes (PHOLEDs) exhibiting a maximum external quantum efficiency of ...zone in the emitting layer, ... See full document

... emission in the visible region for ...for polymer-based WLEDs, and the performance based on this strategy in the literatures is still ...used in the subsequent spin-coating to deposit the ... See full document

... emit light. One of the most unique properties of a conjugated polymer is that the hole mobility is much higher than the electron ...2,3 In fact, this mobility im- balance is expected to be the main ... See full document

... of polymer light-emitting diodes (PLED) focuses on enhancing the device efficiency and operating lifetime by multilayer device structure ...[1–4]. In the multilayer PLED, electron ... See full document

... t In this study, the electroluminescence efficiency of the blue–green polymer light-emitting diodes (PLEDs) is enhanced by the insertion of blocking ... See full document

... devices, in which the electron transporting layer is only a few tens of nanometers away from a metallic ...structure in Fig. 1a assumes no optical losses from the organic/inorganic polymer ... See full document

... attention in the last two decades because of their applications in areas such as light-emitting ...their light-emitting per- ...brightness in polymer ... See full document

... structure. In this work two approaches of blend system are applied to red ...is polymer host with small molecular red emitter, and the other is polymer host with polymer red emit- ...ter. ... See full document