Improved electron injection from silver electrode for all solution-processed polymer light-emitting diodes with Cs2CO3:conjugated polyelectrolyte blended interfacial layer.

Highlights: [•] Cs2CO3:conjugated polyelectrolyte blended interfacial layer is used. [•] Improved electron injection from Ag electrode is achieved. [•] Solution-processed Ag cathode is fabricated using Ag nano-ink. [•] Interfacial layer prevents Ag nano-ink from penetrating into emissive layer. [•] Solution-processed device using Ag nano-ink exhibits luminance (10,000cd/m2). [Copyright &y& Elsevier]