A series of phenanthroline functionalized triarylamines (TAA) has been designed and synthesised to evaluate their OFET characteristics. Solution processed OFET devices have exhibited p-channel/ambipolar behaviour with respect to the substituents, in particular methoxyphenyl substitution resulted with highest mobility (μ_h) up to 1.1 cm² V⁻¹ s⁻¹ with good I_on/off (10⁶) ratio. These compounds can be potentially utilized for the fabrication of electronic devices.