Published in
Institute of Electrical and Electronics Engineers, IEEE Journal of Photovoltaics, 4(5), p. 1074-1078, 2015
DOI: 10.1109/jphotov.2015.2435367
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- Institute of Electrical and Electronics Engineers
- [oa.upm.es] | PDF
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Quantum Dot Parameters Determination From Quantum-Efficiency Measurements
,
Pablo Garcia-Linares ,
Alexandre Mellor,
Elisa Antolin ,
Alexey Vlasov,
Vyacheslav Andreev,
Antonio Marti
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Abstract
The energy spectrum of the confined states of a quantum dot intermediate band (IB) solar cell is calculated with a simplified model. Two peaks are usually visible at the lowest energy side of the subbandgap quantum-efficiency spectrum in these solar cells. They can be attributed to photon absorption between well-defined states. As a consequence, the horizontal size of the quantum dots can be determined, and the conduction (valence) band offset is also determined if the valence (conduction) offset is known.