Manipulation of the charge carrier dynamics at organic-molecule/metal-oxide interfaces by molecular dipole moment
Project/Area Number |
25410085
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Functional solid state chemistry
|
Research Institution | Tokyo Institute of Technology |
Principal Investigator |
Ozawa Kenichi 東京工業大学, 理工学研究科, 助教 (00282822)
|
Project Period (FY) |
2013-04-01 – 2016-03-31
|
Project Status |
Completed (Fiscal Year 2015)
|
Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2013: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
|
Keywords | 有機-酸化物接合界面 / エネルギー準位接続 / 双極子モーメント / キャリアダイナミクス / 光電子分光 / X線吸収分光 / core-hole clock分光 / 有機太陽電池 / 電荷移動 / バンドベンディング / 表面電気伝導度 / 四端子電気伝導測定 / 4端子電気伝導測定 |
Outline of Final Research Achievements |
Effect of dipole moments of organic molecules on the transfer time of excited charge across molecule/metal-oxide junctions has been verified. Photoelectron spectroscopy, X-ray absorption spectroscopy and core-hole clock spectroscopy were utilized to examine the properties of the junctions between shuttle cock-type phthalocyanine films and strontium titanate surfaces. The charge transfer time from phthalocyanine to the oxide surface tends to be shorter if phthalocyanine has a larger dipole moment. However, the interaction strength and the energy-level alignment at the interface affect more drastically the transfer time.
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Report
(4 results)
Research Products
(14 results)