Identification of a boron-oxygen complex as the origin of a non-radiative recombination process in silicon photodetectors and solar cells (Conference Presentation)

2020 ◽  
Author(s):  
Matthew P. Halsall ◽  
Michelle Vaqueiro Contreras ◽  
Vladimir P. Markevich ◽  
Jose Coutinho ◽  
Paulo Santos ◽  
...  
Keyword(s):  
Solar Cells ◽  
Radiative Recombination ◽  
Recombination Process ◽  
Oxygen Complex

Analysis for non-radiative recombination and resistance losses in chalcopyrite and kesterite solar cells

2020 ◽  
Author(s):  
Masafumi YAMAGUCHI ◽  
HITOSHI TAMPO ◽  
Hajime SHIBATA ◽  
Kan-hua Lee ◽  
Kenji ARAKI ◽  
...  
Keyword(s):  
Solar Cells ◽  
Radiative Recombination

Active layer thickness effect on the recombination process of PCDTBT:PC71BM organic solar cells

2013 ◽  
Vol 14 (1) ◽  
pp. 74-79 ◽  
Author(s):  
Gon Namkoong ◽  
Jaemin Kong ◽  
Matthew Samson ◽  
In-Wook Hwang ◽  
Kwanghee Lee
Keyword(s):  
Solar Cells ◽  
Layer Thickness ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Recombination Process ◽  
Thickness Effect ◽  
Active Layer Thickness

scholarly journals Analytical Models of Bulk and Quantum Well Solar Cells and Relevance of the Radiative Limit

2012 ◽  
pp. 59-77 ◽  
Author(s):  
James P. Connolly
Keyword(s):  
Solar Cells ◽  
Quantum Well ◽  
Space Charge ◽  
Radiative Recombination ◽  
Light Trapping ◽  
Open Circuit ◽  
Analytical Models ◽  
Injection Currents ◽  
Photon Recycling ◽  
Open Circuit Voltages

The analytical modelling of bulk and quantum well solar cells is reviewed. The analytical approach allows explicit estimates of dominant generation and recombination mechanisms at work in charge neutral and space charge layers of the cells. Consistency of the analysis of cell characteristics in the light and in the dark leaves a single free parameter, which is the mean Shockley-Read-Hall lifetime. Bulk PIN cells are shown to be inherently dominated by non-radiative recombination as a result of the doping related non-radiative fraction of the Shockley injection currents. Quantum well PIN solar cells on the other hand are shown to operate in the radiative limit as a result of the dominance of radiative recombination in the space charge region. These features are exploited using light trapping techniques leading to photon recycling and reduced radiative recombination. The conclusion is that the mirror backed quantum well solar cell device features open circuit voltages determined mainly by the higher bandgap neutral layers, with an absorption threshold determined by the lower gap quantum well superlattice.

scholarly journals High-Efficiency GaAs-Based Solar Cells

2020 ◽  
Author(s):  
Masafumi Yamaguchi
Keyword(s):  
Solar Cells ◽  
Radiative Recombination ◽  
High Efficiency ◽  
Single Junction ◽  
Analytical Results ◽  
Key Issues ◽  
Limiting Efficiency ◽  
Compound Materials

The III-V compound solar cells represented by GaAs solar cells have contributed as space and concentrator solar cells and are important as sub-cells for multi-junction solar cells. This chapter reviews progress in III-V compound single-junction solar cells such as GaAs, InP, AlGaAs and InGaP cells. Especially, GaAs solar cells have shown 29.1% under 1-sun, highest ever reported for single-junction solar cells. In addition, analytical results for non-radiative recombination and resistance losses in III-V compound solar cells are shown by considering fundamentals for major losses in III-V compound materials and solar cells. Because the limiting efficiency of single-junction solar cells is 30-32%, multi-junction junction solar cells have been developed and InGaP/GaAs based 3-junction solar cells are widely used in space. Recently, highest efficiencies of 39.1% under 1-sun and 47.2% under concentration have been demonstrated with 6-junction solar cells. This chapter also reviews progress in III-V compound multi-junction solar cells and key issues for realizing high-efficiency multi-junction cells.

Non-radiative recombination process in BGaAs/GaAs alloys: Two layer photothermal deflection model

2013 ◽  
Vol 581 ◽  
pp. 358-362 ◽  
Author(s):  
S. Ilahi ◽  
M. Baira ◽  
F. Saidi ◽  
N. Yacoubi ◽  
L. Auvray ◽  
...  
Keyword(s):  
Radiative Recombination ◽  
Recombination Process ◽  
Photothermal Deflection

Radiative recombination in strain-balanced quantum well solar cells

2005 ◽  
Author(s):  
A. Bessiere ◽  
J.P. Connolly ◽  
K.W.J. Barnham ◽  
I.M. Ballard ◽  
D.C. Johnson ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Well ◽  
Radiative Recombination
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