2019 Fiscal Year Final Research Report
High efficiency water-splitted photoelectrode using metal nanopillars embedded in oxide thin films
| Project/Area Number |
17H04895
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Device related chemistry
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| Research Institution | Nihon University (2019)
The University of Tokyo (2017-2018) |
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Principal Investigator |
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| Project Period (FY) |
2017-04-01 – 2020-03-31
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| Keywords | 水分解光電極 / 水素合成 / 酸化物エレクトロニクス |
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| Outline of Final Research Achievements |
In this study, I aim to improve the efficiency of photoelectron by growing metal nano pillar structure in an oxide thin film by using a self-organizing method and applying it as a water splitting photoelectron material. In particular, a material with a Schottky junction at the interface between the metal and the oxide is selected, and the photo-excited photo carrier is made to function as a depletion layer for separating charges into holes and electrons, A number of photoelectrons with three-dimensional Schottky junctions dispersed in a photoelectron thin film by a self-assemble process are fabricated to realize high efficiency of hydrogen synthesis. Here, I particularly focus on SrTiO3 based visible light responsive photocatalysts, and aim at creating innovative photoelectrode material using chemically stable single crystal thin films.
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| Free Research Field |
酸化物エレクトロニクス
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| Academic Significance and Societal Importance of the Research Achievements |
再生可能なエネルギーの開発は地球全体のエネルギーを考える上で重要であるのは言うまでもなく、安全かつ地球の温暖化を防ぐエネルギー材料の開発が求められている。その一つの候補が水素エネルギーである。トヨタの水素自動車“ミライ”で知られているように、燃料電池や自動車において、すでに実用段階に入っている。このような水素エネルギーがより広く人間社会に普及していくには製造、輸送、貯蔵、供給をはじめとするインフラ関連の技術開発から、大学レベルでの基礎的な科学研究まで、それぞれの研究の重要性が増しつつある。
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