Energy Level Alignment at Metal−Octaethylporphyrin Interfaces

Efficient non-halogenated solvent for the template-free solution synthesis of ultralong copper octaethylporphyrin nanowire networks with strong photoswitching properties

A non-halogenated solvent was used for the one-step and scalable synthesis of extremely high aspect ratio organic semiconducting nanowires of CuOEP which exhibit excellent photoswitching effects with reliable reproducibility and superior stability.

Interface Fermi Level Pinning at Contacts Between PEDOT: PSS and Molecular Organic Semiconductors

Photoemission studies of interfaces between molecular organic semiconductors and the conducting polymer PEDOT:PSS [mixture of PEDOT (poly-3,4-ethylenedioxy-thiophene) and PSS (polystyrenesulfonate)] demonstrate that it is impossible to control the charge injection barriers at such contacts by either a systematic change of the work function of the conducting polymer or that of the organic semiconductor. Instead, these interfaces are, in all cases, characterized by a charge transfer across the interface and a resulting Fermi level pinning. Thus interfacial charge barriers do not explain observed changes in device parameters as a function of the work function of the polymer electrode.