2018 Fiscal Year Final Research Report
Construction of NIR photocurrent conversion devices by using surface molecular epitaxy
| Project/Area Number |
16K05715
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Inorganic chemistry
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| Research Institution | Yamagata University |
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Principal Investigator |
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Keywords | 界面 / 近赤外 / 機能性分子 / 金属錯体 / 光電流 / 結晶 / 配向 |
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| Outline of Final Research Achievements |
The design of an electrode surface with nanoarchitectures composed of functional molecules via a convenient fabrication method has been a key research topic regarding the development of chemical devices. In order to construct uniform films or nanoarchitectures of functional molecules on substrates, a layer-by-layer molecular fabrication method, a spin-coating method, and electropolymerization have been widely used to date. By using these methods, not only homogeneous but also heterogeneous films can be easily constructed.
We have conveniently constructed PNs via wet-process epitaxial growth on a substrate. The number of phthalocyanines on a substrate can be easily controlled by the period of immersion time. The mixed structure of PNs and PCBM shows a stable cathodic photocurrent, and the efficiency of photocurrent generation was controlled via a change in the number of phthalocyanine derivatives.
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| Free Research Field |
無機化学
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| Academic Significance and Societal Importance of the Research Achievements |
本研究では，配向を制御した拡張π共役分子のボトムアッププロセスにより，既存の可視光吸収分子同士の電子的相互作用を強く発現できるため，近赤外領域までの吸収帯大幅シフトが期待できる．さらに，配向制御された分子デバイスは高効率な電子・ホール移動も期待できる．そのため，本技術の確立により，簡便かつ再現良く，安定かつ高効率で発電するシースルー太陽電池創出に繋げ，エネルギー問題解決に貢献する産業基盤技術へと発展させたい．
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