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Table of contents
1. Introduction
2. Nanomaterial evolution and nanoimprint technique
2.1 Development of nanostructured materials
2.1.1 Nanostructures in nature
2.1.2 Artificially nanostructured materials: semiconductor quantum dots
2.1.3 New generation of semiconductor quantum dots
2.2 Development of nanocomposite thin films
2.2.1 Dielectric material contains nanocrystals
2.2.2 Organic polymer containing inorganic nanocrystals
2.3 Historic development of nanoimprint lithography
2.3.1 Thermal nanoimprint lithography
2.3.2 UV-curable nanoimprint lithography
2.3.3 New material developments
3. Experimental framework and principles
3.1 Experimental framework
3.2 Spin coating method – Hybrid thin films/ QDs
3.2.1 Rotational speed and time
3.2.2 Viscosity and concentration of the solution
3.3 Measurement methods
3.3.1 Spectrophotometer- transmission and reflection measurement
3.3.2 Photoluminescence measurement
3.3.3 Spectroscopic ellipsometry
3.3.4Transmission and scanning electron microscopy
3.3.4 (a) Transmission electron microscopy
3.3.4 (b) Scanning electron microscopy
3.3.5 Atomic force microscopy
4. Hybrid organic thin films/ QDs
4.1 PMMA thin film with CdSe/ZnS QDs
4.1.1 Introduction of experimental preparation and processes
4.1.2 Electron microscopy measurement
4.2 Optical properties of PMMA thin film layers with CdSe/ZnS QDs
4.2.1 Transmission/ reflection and absorption spectrum
4.2.2 Photoluminescence versus wavelengths measurement
4.2.3 Photoluminescence intensity versus time measurement
4.3 Frequency conversion of CdSe/ZnS QDs: Its application to solar cells
4.3.1 Using PMMA /QDs films as down-conversion frequency layer
4.3.2 QDs embedded in the active layer of organic solar cells
5. Nanostructured hybrid organic thin films/ QDs
5.1 Introduction of thermal nanoimprint organic layers
5.1.1 Heating experiment for transition temperature of organic layers
5.1.2 Periodic structure of imprinted pure organic layers
5.2 Imprinted nanostructure in hybrid organic layer with quantum dots
5.2.1 Fabrication process of imprinted hybrid layers via optimized heating
5.2.2 Periodic structure of imprinted hybrid layers
5.3 Optical field emission simulation for the periodic nanostructure
5.3.1 Plane wave light emission in the nanostructure
5.3.1(a) Emission light simulation in near field
5.3.1(b) Emission light simulation in far field
5.3.2 Dipole source emission light in the nanostructure
5.3.2(a) Emission light simulation in near field
5.3.2(b) Emission light simulation in far field
6. Conclusions et perspectives
Bibliography
