Analysis of the recombination mechanisms in silicon solar cells with the record 26.6% photoconversion efficiency

Author(s):  
Anatoliy Sachenko ◽  
Vitaliy Kostylyov ◽  
Viktor Vlasiuk ◽  
Igor Sokolovskyi ◽  
Mykhaylo Evstigneev
Nature Energy ◽  
2018 ◽  
Vol 3 (6) ◽  
pp. 529-529 ◽  
Author(s):  
Romain Cariou ◽  
Jan Benick ◽  
Frank Feldmann ◽  
Oliver Höhn ◽  
Hubert Hauser ◽  
...  

2020 ◽  
Vol 10 (1) ◽  
pp. 63-69 ◽  
Author(s):  
Anatoly Sachenko ◽  
Vitaliy Kostylyov ◽  
Igor Sokolovskyi ◽  
Mykhaylo Evstigneev

Nature Energy ◽  
2018 ◽  
Vol 3 (7) ◽  
pp. 606-606 ◽  
Author(s):  
Romain Cariou ◽  
Jan Benick ◽  
Frank Feldmann ◽  
Oliver Höhn ◽  
Hubert Hauser ◽  
...  

Nature Energy ◽  
2018 ◽  
Vol 3 (4) ◽  
pp. 326-333 ◽  
Author(s):  
Romain Cariou ◽  
Jan Benick ◽  
Frank Feldmann ◽  
Oliver Höhn ◽  
Hubert Hauser ◽  
...  

2021 ◽  
Vol 24 (02) ◽  
pp. 175-184
Author(s):  
A.V. Sachenko ◽  
◽  
V.P. Kostylyov ◽  
R.M. Korkishko ◽  
V.M. Vlasyuk ◽  
...  

A new approach to modeling the parameters of high efficiency textured silicon solar cells (SCs) has been presented. Unlike conventional optimization formalisms, our approach additionally includes such important factors as the non-radiative Auger recombination of excitons via deep impurity levels as well as electron-hole pairs recombination in the space charge region. A simple phenomenological expression offered by us earlier for the external quantum efficiency of the textured silicon solar cells with account of the photocurrent in the long-wave part of the absorption spectrum has been also used. Applying this approach, the key parameters of textured silicon SCs, namely: short-circuit current, open-circuit voltage and photoconversion efficiency, have been theoretically determined. The proposed formalism allows calculating the thickness dependence of photoconversion efficiency, which is in good agreement with the experimental results obtained for the heterojunction SCs with the record photoconversion efficiency of 26.6%. The offered approach and the results of applying this phenomenological expression for the external quantum efficiency of the photocurrent in the long-wave part of the absorption spectrum can be used to optimize the characteristics of high efficiency textured SCs based on monocrystalline silicon.


2003 ◽  
Vol 762 ◽  
Author(s):  
Guozhen Yuea ◽  
Baojie Yan ◽  
Jeffrey Yang ◽  
Kenneth Lord ◽  
Subhendu Guha

AbstractWe have observed a significant light-induced increase in the open-circuit voltage (Voc) of mixed-phase hydrogenated silicon solar cells. In this study, we investigate the kinetics of the light-induced effects. The results show that the cells with different initial Voc have different kinetic behavior. For the cells with a low initial Voc (less than 0.8 V), the increase in Voc is slow and does not saturate for light-soaking time of up to 16 hours. For the cells with medium initial Voc (0.8 ∼ 0.95 V), the Voc increases rapidly and then saturates. Cells with high initial Voc (0.95 ∼ 0.98 V) show an initial increase in Voc, followed bya Voc decrease. All light-soaked cells exhibit a degradation in fill factor. The temperature dependence of the kinetics shows that light soaking at high temperatures causes Voc increase to saturate faster than at low temperatures. The observed results can be explained by our recently proposed two-diode equivalent-circuit model for mixed-phase solar cells.


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