Figure 1

Device structures and materials.
Device design of (a) pixelated light-emitting transistor (Pix-LET) using a semitransparent drain electrode (b) non-planar light-emitting transistor (NPLET-Au/Ca) with conventional Ca-Au drain-source electrodes and (c) light-emitting transistor in conventional top electrode geometry with a semitransparent CAC drain electrode (LET-Au/CAC). Molecular structures of (d) hole transport material PBTTT and (e) of the emissive material Super Yellow.