Morphological and electrical properties of carbazole derivatives/silicon hybrids

Carbazoles and their derivatives are widely used as luminescent and phosphorescent materials in various fields of organic electronics, including the fabrication of organic light- emitting diodes [1-3]. The objective compounds RB-75 and RB-70 are presented in Figure 1. The newly synthesized derivatives were identified by mass spectrometry and NMR spectroscopy. The data were found to be in good agreement with the proposed structures. Carbazole derivatives were used for creation of hybrids on silicon patterned substrates using self-organization and spin-coating. The morphology of self-organised and spin-coated films showed two different forms of surface morphology: square-like and network-like. Carbazole derivative hybrids used in this study have three main behaviors: Ohm's law, rectifying and bimolecular recombination. This makes these hybrids promising for use in solar cells.