2013 Fiscal Year Final Research Report
New functionality of organic-inorganic hybrids with chemically modified nanoparticles and development of innovative devices based on the hybrids
| Project/Area Number |
23360140
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Electronic materials/Electric materials
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| Research Institution | Osaka Prefecture University |
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Principal Investigator |
NAITO Hiroyoshi 大阪府立大学, 工学(系)研究科(研究院), 教授 (90172254)
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| Co-Investigator(Kenkyū-buntansha) |
KOBAYASHI Takashi 大阪府立大学, 大学院・工学研究科, 准教授 (10342784)
NAGASE Takashi 大阪府立大学, 大学院・工学研究科, 助教 (00399536)
MATSUKAWA Kiminori 大阪市立工業研究所, 電子材料研究部, 部長 (90416321)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 電子・電気材料 / 電子デバイス・機器 / 半導体物性 / 光物性 / 太陽電池 |
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| Research Abstract |
Thin film transistors have been fabricated using a mixture of organic semiconductors silica nanoparticles whose surfaces are chemically modified. The thin film transistors exhibit excellent electrical characteristics because of improved coatability on hydrophobic surfaces and improved crystallinity of organic semiconductors. New thin film transistor production processes have been established from the findings. Organic-inorganic hybrid bulk heterojunction solar cells have also been fabricated, and the device lifetime of the hybrid solar cells is found to be much improved in comparison with conventional organic solar cells. The interface density of states of the thin film transistor has been determined with impedance spectroscopy, and it is demonstrated that the density of states at the organic-inorganic hybrid gate insulator/organic semiconductor interface is extremely low, indicating that the hybrid materials are suitable to a gate insulator for thin film transistors as well.
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