| Budget Amount *help |
¥19,890,000 (Direct Cost: ¥15,300,000、Indirect Cost: ¥4,590,000)
Fiscal Year 2015: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2014: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2013: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
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| Outline of Final Research Achievements |
To develop semiconductor materials for the formation of Frenkel-type excitons, we have proposed linear chains of closely spaced ultrasmall semiconductor quantum dots (QDs), as a promising material. This novel nanostructure was designed to simulate linear molecular aggregates in organic materials, in which excitons can form. The proposed synthesis method of QD chain production uses techniques that improve or enhance (1) the synthesis of ultrasmall quantum dots, (2) the ligand exchange method, (3) immobilization of single strand DNA on QDs, and (4) the synthesis of self-assemblies of DNA-functionalized QDs. The resulting QD chains produced were evaluated using time-resolved spectroscopy and transmission electron microscopy to characterize the electronic/optical and nanostructural properties, respectively.
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