The present invention relates to a novel thin film transistor (TFT) comprising a substrate (100) with a gate electrode layer (101) deposited and patterned thereon and a gate insulator layer (102) deposited on the gate electrode layer and the substrate, characterized in that the transistor further comprises (i) a carrier injection layer (103) arranged above the gate insulator layer, (ii) a source/drain (S/D) electrode layer (104) deposited on the carrier injection layer, and (iii) a semiconductor layer (106), methods for the production of such novel TFTs, devices comprising such TFTs, and to the use of such TFTs.