Optical and electrochemical properties of polyether derivatives of perylenediimides adsorbed on nanocrystalline metal oxide films

Highly Efficient Organic UV Photodetectors Based on Polyfluorene and Naphthalenediimide Blends: Effect of Thermal Annealing

“…The supporting electrolyte was 0.1 M TBAPF 6 in chloroform, and Fc was used as the internal standard (E o (Fc/Fc+) = 0.27 V versus Ag in chloroform). The onset potential of the first oxidation peak (1.08 V) was used to determine the HOMO energy level [26] and calculated to be −5.6 eV. The optical band gap (ΔE g ) obtained from the onset of absorption spectrum of PFE is 3.2 eV.…”

Highly efficient orange–red electroluminescence from a single layer MEH-PPV-POSS:CdS0.75Se0.25 hybrid PLED

“…The nanocrystals coated on TCO working electrode exhibited reduction potential at −1.5 V versus Ag/AgCl reference electrode where inner reference Ferrocene/Ferrocenium couple showed oxidation potential at 0.4 V. The optical band gap (E OBG ) was calculated from the absorption spectrum edge of the nanocrystals as 2.14 eV. The valance band (VB) energy level of the nanocrystals was estimated from CB and E OBG [17]. HOMO and LUMO energy levels of MEH-PPV-POSS were taken from the literature [18] 25 were spin coated at 2500 rpm on glass slides and their thin film PL measurements were performed.…”

Navigating CIE Space for Efficient TADF Downconversion WOLEDs

“…This broad emission also increases the range of materials that can be used as DCs, as their absorption spectra are not as tightly restricted by the emission profile of the driving OLED. Indeed, recently perylene diimides (PDIs) and perylene tetraester (PTE) derivatives have been successfully incorporated in DC systems for inorganic LEDs [7,8], as these materials displaying excellent optical properties as well as high thermal stability [13][14][15][16][17][18].…”