Premium
Synthesis and Characterization of Soluble Poly( p ‐phenylene) Derivatives for PLED Applications
Author(s) -
Saikia Gunin,
Singh Ranbir,
Sarmah Pranjol Jyoti,
Akhtar Mohammad Waseem,
Sinha Jasmine,
Katiyar Monica,
Iyer Parameswar Krishnan
Publication year - 2009
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.200900387
Subject(s) - phenylene , decomposition , band gap , spectroscopy , electrochemistry , layer (electronics) , poly(p phenylene) , chemistry , characterization (materials science) , polymer chemistry , materials science , proton nmr , analytical chemistry (journal) , polymer , organic chemistry , optoelectronics , nanotechnology , electrode , physics , quantum mechanics
PPP derivatives with high molecular weights were synthesized and characterized by FT‐IR, 1 H, 13 C NMR and GPC. The decomposition temperatures of 2a–2c were above 300–400 °C. DSC analysis indicated their nature to be crystalline as all of them exhibited a melt temperature on controlled heating. Optical and electrochemical band gaps was determined using UV/Vis spectroscopy and CV. Single‐layer PLEDs fabricated with 2a–2c displayed high threshold voltages due to high potential barrier for holes. Their EL spectra reveal a small shift in blue peak and the emission form higher wavelength shoulder peak is enhanced.