New Poly(p-phenylene vinylene) Derivatives Exhibiting High Photoluminescence Quantum Efficiencies

Efficient Oxygen‐Induced Molar‐Mass Control of Poly(p‐phenylene vinylenes) Synthesized via the Gilch Route

“…[1][2][3][4] Among the wide variety of synthetic methods available for synthesizing these materials, the Gilch reaction is of outstanding interest: [5][6][7][8][9][10][11][12][13] it is of fascinating practical simplicity and robustness, and it delivers highmolecular-weight homo and random copolymers with excellent film-forming properties. However, minimization of characteristic constitutional defects within the chains, proper control of the polymer's chain length and polydispersity, and creation of more complex chain architectures are still unsolved challenges.…”

Highly alkoxylated PPV copolymers for PLEDs: Syntheses, optical properties and enhancement of device lifetimes

“…To date, many luminescent polymer systems such as PPVs [2][3][4][5], polythiophenes [6], poly(p-phenylene)s [7], carbazole-containing polymers [8] and polyfluorenes [9,10] have been developed. It is generally recognized that PPV and its derivatives are promising conjugated polymers for PLEDs owing to their relatively high photoluminescence (PL) [11] and EL quantum efficiencies as well as their good mechanical strength, thermal stability and tendency to change color with changes in the substituents on the aromatic ring.…”

Theoretical Studies of Distyrylbenzene and its Optical Properties

“…The electroluminescence of PPVs such as DSB is believed to be generated by the recombination of electrons and holes injected through the electrode. 33 The electro-luminescence quantum yield was defined as the number of photons emitted per electron incident. As the excitons generated electrically are believed to be the same as those generated by optical excitation, 2,33 therefore the same definition is available in photoluminescence studies.…”

“…33 The electro-luminescence quantum yield was defined as the number of photons emitted per electron incident. As the excitons generated electrically are believed to be the same as those generated by optical excitation, 2,33 therefore the same definition is available in photoluminescence studies. 34 To obtain high performance optoelectronic devices such as lasers, high quantum yield and frequency modulations are important.…”