Comparison of possible realizations of quantum ratchet intermediate band solar cells
| Autor: | N. P. Hylton, Nicholas J. Ekins-Daukes, Andreas Pusch |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Physics
Ratchet 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences law.invention Momentum law Quantum mechanics Excited state 0103 physical sciences Solar cell Spontaneous emission 010306 general physics 0210 nano-technology Absorption (electromagnetic radiation) Quantum Realization (systems) |
| Zdroj: | 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC). |
| Popis: | Three fundamentally different approaches for the realization of a quantum ratchet intermediate band solar cell are compared. The quantum ratchet is a mechanism by which an energy loss of excited electrons is turned into an improvement in the efficiency of intermediate band solar cells by reducing carrier recombination in the system. The main requirement for this is to engineer forbidden transitions which can be achieved through vanishing spatial overlap of the wave-functions, spinselection rules or a momentum mismatch. |
| Databáze: | OpenAIRE |
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