Energy conversion efficiency mechanisms in quantum dot intermediate band nanostructure solar cells

1. MULTIPLE EXCITON GENERATION SOLAR CELLS

1.1. There are two pathways to prevent the thermalization loss produced from the absorption of high-energy photons.

1.1.1. enhanced photovoltage

1.1.2. enhanced photocurrent.

2. INTERMEDIATE-BAND SOLAR CELLS

2.1. To capture and use photons with energy bandgap

2.1.1. IB solar cells are based on intermediate band materials

2.1.2. These materials are characterized by the existence of an intermediate band

3. QUANTUM DOT SOLAR CELLS

3.1. there are two pathways for enhancing the conversion efficiency

3.1.1. increased photovoltage

3.1.2. increased photocurrent

3.2. Quantum dots inserted in p-i-n cells

3.2.1. Arrangin g QDs needs the evaporation and crystallization of homogeneous colloidal QDs

3.3. Nanocrystalline TiO2 solar cells sensitized by

3.3.1. Possible advantages of QDs over dye molecules are the tenability of optical properties

3.4. Quantum dots dispersed in conducting polymers

3.4.1. The structures of the dispersed QDs in a blend 26 J. Electrical Electron. Eng. Res. of electron- and hole-conducting polymers have shown PV effects.

3.4.1.1. KPI's