Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Electronic properties of Mn-Phthalocyanine - C$_{60}$ bulk
  heterojunctions: combining photoemission and electron energy-loss
  spectroscopy   The electronic properties of co-evaporated mixtures (blends) of manganese
phthalocyanine and the fullerene C$_{60}$ (MnPc:C$_{60}$) have been studied as
a function of the concentration of the two constituents using two supplementary
electron spectroscopic methods, photoemission spectroscopy (PES) as well as
electron energy-loss spectroscopy (EELS) in transmission. Our PES measurements
provide a detailed picture of the electronic structure measured with different
excitation energies as well as different mixing ratios between MnPc and
C$_{60}$. Besides a relative energy shift, the occupied electronic states of
the two materials remain essentially unchanged. The observed energy level
alignment is different compared to that of the related CuPc:C$_{60}$ bulk
heterojunction. Moreover, the results from our EELS investigations show that
despite of the rather small interface interaction the MnPc related electronic
excitation spectrum changes significantly by admixing C$_{60}$ to MnPc thin
films.

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The categories of this paper are: eess
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The categories of this paper are: stat
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
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The categories of this paper are: alg-geom
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
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The categories of this paper are: math-ph
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
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The categories of this paper are: quant-ph
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The categories of this paper are: ao-sci