Abstract
We investigated molecular chain conformation effect in polyfluorenes (PFO) according to film preparation conditions. By using solvent vapor annealing and introducing anisotropic alignment interface, the molecular conformation of the β phase could be effectively enhanced. The electroluminescence properties of the alterative current driven PLED with the β phase‐enhanced PFO layer exhibited improved color purity for blue, polarized light emission, and more reliable light‐emitting operation owing to the ordered and coplanar molecular chain conformation effects.
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