Evidence of hybridization states at the donor/acceptor interface: case of m-MTDATA/PPT

We performed a spectroscopic study on the m-MTDATA (donor) and PPT (acceptor) molecular vertical heterostructure. The electronic properties of the donor/acceptor interface have been comprehensively characterized by synchrotron radiation-based photoelectron spectroscopy and near-edge x-ray absorption fine structure. The spectroscopic results reveal the existence of new hybridization states in the original molecular energy gap, likely attributed to the interaction between the donor and the acceptor molecules at the interface. Such hybridized states can have a significant impact on the charge transport in organic electronic devices based on donor-acceptor molecules and can explain the increased efficiency of device using such molecules.

Automated summary

This study performed a spectroscopic investigation on the vertical heterostructure of m-MTDATA (donor) and PPT (acceptor) molecules. The electronic properties of the donor/acceptor interface were thoroughly characterized, revealing the presence of novel hybridized states resulting from the interaction between the donor and acceptor molecules at the interface. These hybridized states have a significant impact on charge transport in organic electronic devices, which may explain the increased device efficiency when using donor-acceptor molecules.