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Energy-level alignment at interfaces between manganese phthalocyanine and C60.

ABSTRACT: We have used photoelectron spectroscopy to determine the energy-level alignment at organic heterojunctions made of manganese phthalocyanine (MnPc) and the fullerene C60. We show that this energy-level alignment depends upon the preparation sequence, which is explained by different molecular orientations. Moreover, our results demonstrate that MnPc/C60 interfaces are hardly suited for application in organic photovoltaic devices, since the energy difference of the two lowest unoccupied molecular orbitals (LUMOs) is rather small.

SUBMITTER: Waas D 

PROVIDER: S-EPMC5433147 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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Energy-level alignment at interfaces between manganese phthalocyanine and C<sub>60</sub>.

Waas Daniel D   Rückerl Florian F   Knupfer Martin M   Büchner Bernd B  

Beilstein journal of nanotechnology 20170425

We have used photoelectron spectroscopy to determine the energy-level alignment at organic heterojunctions made of manganese phthalocyanine (MnPc) and the fullerene C<sub>60</sub>. We show that this energy-level alignment depends upon the preparation sequence, which is explained by different molecular orientations. Moreover, our results demonstrate that MnPc/C<sub>60</sub> interfaces are hardly suited for application in organic photovoltaic devices, since the energy difference of the two lowest  ...[more]

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