The Effect of Oxygen Exposure on Pentacene Thin Film Electronic Structure
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P Type
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AbstractWe use ultraviolet photoelectron spectroscopy to investigate the effect of oxygen and air exposure on the electronic structure of pentacene thin films. It is found that O2 and water do not react noticeably with pentacene, whereas singlet oxygen/ozone readily oxidize the organic compound. Also, we obtain no evidence for considerable p-type doping of pentacene by O2 at low pressure. However, oxygen exposure lowers the hole injection barrier at the interface between Au and pentacene by 0.25 eV, presumably due to a modification of the Au surface.
2020 ◽
Vol 91
(3)
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pp. 30201
1998 ◽
Vol 227-230
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pp. 1156-1159
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2005 ◽
Vol 483-485
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pp. 547-550
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1979 ◽
Vol 22
(11)
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pp. 1290-1295
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