We study InAs/GaAs quantum dot solar cells exploiting light trapping approaches to enhance the interband light harvesting efficiency of quantum dots. A realistic thin-film structure including a nanostructured anti-reflection coating and a planar reflector is investigated both from the optical and electrical standpoint, based on finite difference time domain electromagnetic simulations and on quantum-dot-aware transport simulations. The photovoltaic efficiency of quantum dot solar cells and reference bulk cells is analyzed for various configurations, from the single-pass -wafer-based- one to the thin-film one approaching the ideal Lambertian limit. We show that light-trapping enhancement, combined with QD selective doping, may allow the quantum dot cell to achieve photovoltaic efficiency higher than its bulk counterpart.

Study of light-trapping enhanced quantum dot solar cells based on electrical and optical numerical simulations / Cappelluti, Federica; Musu, Antonio; Khalili, Arastoo. - ELETTRONICO. - (2016), pp. 1-2. (Intervento presentato al convegno 2016 Compound Semiconductor Week, CSW 2016 tenutosi a Toyama, Japan nel 2016) [10.1109/ICIPRM.2016.7528629].

Study of light-trapping enhanced quantum dot solar cells based on electrical and optical numerical simulations

CAPPELLUTI, Federica;KHALILI, ARASTOO
2016

Abstract

We study InAs/GaAs quantum dot solar cells exploiting light trapping approaches to enhance the interband light harvesting efficiency of quantum dots. A realistic thin-film structure including a nanostructured anti-reflection coating and a planar reflector is investigated both from the optical and electrical standpoint, based on finite difference time domain electromagnetic simulations and on quantum-dot-aware transport simulations. The photovoltaic efficiency of quantum dot solar cells and reference bulk cells is analyzed for various configurations, from the single-pass -wafer-based- one to the thin-film one approaching the ideal Lambertian limit. We show that light-trapping enhancement, combined with QD selective doping, may allow the quantum dot cell to achieve photovoltaic efficiency higher than its bulk counterpart.
2016
9781509019649
9781509019649
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2655932
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