The present invention discloses an organic semiconductor formulation comprising an organic semiconductor (OSC) and an organic nitrogen-containing additive (ONA) capable of enhancing the n-type performance of the organic semiconductor. The semiconductor formulation disclosed herein is suitable for producing n-type semiconductor thin films for use in a variety of electronic applications and devices.

An amino fluorene polymer including a first repeating unit represented by Formula 1:

##STR00001##

wherein, in Formula 1, A, F, F, m1, n1, n2, R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are the same as described in the specification.

Ultra-low loss curable hydrocarbon resin compositions comprising vinylbenzyl compounds, a method for the preparation thereof and their use for the manufacture of articles which find application in the electric/electronic industries.