Here, we focus on enhancing the hole injection since we suspect an already sufficient electron mobility due to the n-type character of such NCs. In this regard, the carbazole moiety matches the low valence band edge of LHPs, while featuring good solubility in organic solvents, a wide bandgap and high triplet level for application in conjunction with blue emitters. Carbazoles have been incorporated in several stable, state-of-the-art opto-electronic devices with an extensive research background in that context. Thus, we introduce a novel zwitterionic ligand (DCzGPC) based on a phosphocholine backbone with sidechains consisting of the conjugated carbazole π-system. We show that LEDs of LHP NCs stabilized with this ligand exhibit an increased operational lifetime, a higher external quantum yield and a lower turn-on voltage than the same LHP NCs with conventional ligand stabilization.