2013 Fiscal Year Final Research Report
Application for the photocathode of the photoelectric emission from metal-deposited-organic surface
| Project/Area Number |
24656037
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Thin film/Surface and interfacial physical properties
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| Research Institution | Kinki University (2013)
Shimane University (2012) |
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Principal Investigator |
TANAKA Senku 近畿大学, 理工学部, 講師 (20397855)
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| Co-Investigator(Renkei-kenkyūsha) |
HAYASHI Taisuke 島根大学, 総合科学研究支援センター, 教務職員 (50580495)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 有機/金属界面 / 光電効果 / フォトカソード |
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| Research Abstract |
Photoelectric emission from organic and metal thin films is generally observed with irradiation of photon energy larger than 4 eV. In this research, however, we report photoelectric emission from Ag on a zinc-phthalocyanine (ZnPc) layer at a photon energy of 3.4 eV. The threshold energy for this photoelectric emission is much smaller than the work function of Ag estimated by conventional photoelectron spectroscopy. The photoelectric emission by low-energy photons is significant for Ag thicknesses of less than 1 nm. Photoelectron spectroscopy and morphological study of the Ag/ZnPc suggest that the anomalous photoelectric emission from the Ag surface is caused by a vacuum level shift at the Ag/ZnPc interface and by surface plasmons of the Ag nanoparticles.
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Research Products
(8 results)
