Poly(triarylamine)s- synthesis and application in electroluminescent devices and photovoltaics

摘要: Abstract Polymeric triphenyldiamines (p-TPD)s and naphthylphenyldiamines (p-NPD)s were synthesized by Ullmann reaction between bis(N,N-diaryl)amines aryldiiodides in presence of phase-transfer catalyst, 18-crown-6. The polymers obtained are soluble THF, CHCl 3 etc possess Tgs the range 206°C to 232°C form stable amorphous thin films. HOMO energy values determined from cyclic voltammetry measurements lie −5.10 −5.17 eV with respect vacuum level. p-TPD p-NPD effectively applied as hole transport material Electroluminescent devices, ITO/p-TPD/Alq /Al. A solid-state solar cell, consisting an inorganic nanocrystalline TiO 2 layer coated on ITO for electron conduction, a surface-adsorbed ruthenium complex dye light absorption is also realized. Using appropriate counter electrode such Au or Pt, quantum efficiencies up 0.2% open circuit voltage 550mV realised.