27 research outputs found
White-Light-Emitting Diodes Based on Iridium Complexes via Efficient Energy Transfer from a Conjugated Polymer
No full textHigh-Efficiency White-Light-Emitting Devices from a Single Polymer by Mixing Singlet and Triplet Emission
No full textWhite Luminescence from Polymer Thin Films Containing Excited-State Intramolecular Proton-Transfer Dyes
No full textThe Effect of Two Different Routes of Administration of Oxytocin on Peripheral Plasma Prostaglandin F2α Metabolite Levels in Early Post-partum Dairy Cows
No full textBiochemical conversion of sugarcane straw hemicellulosic hydrolyzate supplemented with co-substrates for xylitol production
No full text
Device Physics of White Polymer Light-Emitting Diodes
Get PDFThe charge transport and recombination in white-emitting polymer light-emitting diodes (PLEDs) are studied. The PLED investigated has a single emissive layer consisting of a copolymer in which a green and red dye are incorporated in a blue backbone. From single-carrier devices the effect of the green- and red-emitting dyes on the hole and electron transport is determined. The red dye acts as a deep electron trap thereby strongly reducing the electron transport. By incorporating trap-assisted recombination for the red emission and bimolecular Langevin recombination for the blue emission, the current and light output of the white PLED can be consistently described. The color shift of single-layer white-emitting PLEDs can be explained by the different voltage dependencies of trap-assisted and bimolecular recombination.
Benzoate-induced stress enhances xylitol yield in aerobic fed-batch culture of Candida mogii TISTR 5892
No full text
