2014 Fiscal Year Final Research Report
Novel Color Electrochromic Device with Controll of LSPR Band of Silver Nanoelectrodeposit
| Project/Area Number |
25620193
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Device related chemistry
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| Research Institution | Chiba University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
NAKAMURA Kazuki 千葉大学, 大学院融合科学研究科, 助教 (00554320)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Keywords | エレクトロデポジション / 銀電着 / ナノ構造化学 / 多色エレクトロクロミズム / 局在表面プラズモン共鳴 |
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| Outline of Final Research Achievements |
Electrochromic (EC) device is expected to be a potential candidate for novel reflective display and energy conservation system. We focused on Ag-electrodeposition based EC device. It is known that Ag nanoparticles exhibit various optical states based on their localized surface plasmon resonance (LSPR). In order to realize color variation in Ag electrodeposition, we investigated the electrochemical formation of size-controlled Ag nanoparticles using a voltage-step method which consisted of the application of two successive different voltages (V1 and V2). Thus electrodeposited Ag nanoparticles exhibit red and blue color depending on the time for V2 voltage application. The color changes between transparent and colored states are reversible. Then, we firstly and successfully demonstrate the LSPR-based multicolor EC device exhibiting reversible color change in five optical states (transparent, silver mirror, red, blue, and black).
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| Free Research Field |
化学・デバイス関連化学
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