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Photocurrent multiplication in naphthalene tetracarboxylic anhydride film at room temperature
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14.This barrier height was obtained from the energy difference between the work function of the Au electrode (4.9 eV) and the lower edge of the conduction band of NTCDA (2.55 eV), which was estimated from the optical band gap (2.95 eV) and the upper edge of the valence band (5.50 eV). The work function of Au and the energy value of the valence band of NTCDA from the vacuum level were measured by atmospheric photoelectron emission analysis.
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