Multi-Junction Solar Cell Spectral Tuning with Quantum Dots
| Autor: | Sheila G. Bailey, Ryne P. Raffaelle, John D. Andersen, David M. Wilt, Samar Sinharoy |
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| Rok vydání: | 2006 |
| Předmět: |
Materials science
Photoluminescence Condensed Matter::Other business.industry Quantum point contact Quantum dot solar cell Condensed Matter::Mesoscopic Systems and Quantum Hall Effect law.invention Gallium arsenide Condensed Matter::Materials Science chemistry.chemical_compound Stranski–Krastanov growth chemistry Quantum dot law Quantum dot laser Solar cell Optoelectronics business |
| Zdroj: | 2006 IEEE 4th World Conference on Photovoltaic Energy Conference. |
| Popis: | We have theoretically analyzed the potential efficiency improvement to multi-junction solar cell efficiencies which are available through the incorporation of quantum dot using detailed balance calculations. We have also experimentally investigated the Stranski-Krastanov growth of self-organized InAs quantum dots and quantum dot arrays on lattice-matched GaAs by metallorganic vapor phase epitaxy (MOVPE). The morphology of the quantum dots were investigated as a function of their growth parameters by atomic force microscopy (AFM). Photluminescence and optical absorption measurements have demonstrated that the incorporation of InAs quantum dots (QD) into a GaAs structure can provide sub-GaAs bandgap electronic states. |
| Databáze: | OpenAIRE |
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