R&amp;D pilot line production of multi-crystalline Si solar cells exceeding cell efficiencies of 18%

Engelhart, P.; Wendt, J.; Schulze, A.; Klenke, C.; Mohr, Andreas; Petter, K.; Stenzel, F.; Hörnlein, Stefan; Kauert, Maximilian; Junghänel, M.; Barkenfelt, B.; Schmidt, S.; Rychtarik, D.; Fischer, Markus; Müller, Jörg; Wawer, P.

doi:10.1016/j.egypro.2011.06.142

Cited by 37 publications

(14 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The PERC-type design is compatible with high cell efficiencies, 47,200 and is currently being introduced in mass production. The adaptation from the standard Al-BSF cell to a PERC cell requires the deposition of a rear passivation film, local contact formation by, for example, laser processing, 201,202 but it also changes, for example, the requirements for the optimal Si bulk resistivity 9,203 and the composition of the metal pastes. Another route to realize high efficiencies is the use of n-type Si base material.…”

Section: Solar Cells Featuring Al 2 Omentioning

confidence: 99%

Status and prospects of Al2O3-based surface passivation schemes for silicon solar cells

Dingemans

Kessels

2012

Journal of Vacuum Science &Amp; Technology A: Vacuum, Surfaces, and Films

707

554

View full text Add to dashboard Cite

DOI to the publisher's website. • The final author version and the galley proof are versions of the publication after peer review. • The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal. If the publication is distributed under the terms of Article 25fa of the Dutch Copyright Act, indicated by the "Taverne" license above, please follow below link for the End User Agreement:

show abstract

Section: Solar Cells Featuring Al 2 Omentioning

confidence: 99%

Status and prospects of Al2O3-based surface passivation schemes for silicon solar cells

Dingemans

Kessels

2012

Journal of Vacuum Science &Amp; Technology A: Vacuum, Surfaces, and Films

707

554

View full text Add to dashboard Cite

show abstract

“…Upgraded Metallurgical-Grade (UMG) silicon has raised interest as a low cost alternative material for high efficiency silicon solar cells. [1][2][3][4][5][6][7] UMG silicon feedstock is purified using a liquid phase purification process. As a result, it contains more impurities, especially shallow acceptors and donors (B, Al, and P), and the minority carrier lifetime is usually lower in the as-grown state.…”

mentioning

confidence: 99%

“…4 In 2011, comparable cell efficiencies were achieved for p-type mc-Si UMG solar cells and cells made with standard electronic-grade feedstock, of 18.35% and 18.45%, respectively. 5 By switching from p-type to n-type UMG, in 2012, 19% efficiency was achieved using 100% UMG Cz silicon with a heterojunction device. 6 This was then followed by a 19% n-type UMG Cz homojunction cell one year later.…”

mentioning

confidence: 99%

Upgraded metallurgical-grade silicon solar cells with efficiency above 20%

Zheng

Rougieux

Samundsett

et al. 2016

Applied Physics Letters

View full text Add to dashboard Cite

We present solar cells fabricated with n-type Czochralski-silicon wafers grown with strongly compensated 100% upgraded metallurgical-grade feedstock, with efficiencies above 20%. The cells have a passivated boron-diffused front surface, and a rear locally phosphorus-diffused structure fabricated using an etch-back process. The local heavy phosphorus diffusion on the rear helps to maintain a high bulk lifetime in the substrates via phosphorus gettering, whilst also reducing recombination under the rear-side metal contacts. The independently measured results yield a peak efficiency of 20.9% for the best upgraded metallurgical-grade silicon cell and 21.9% for a control device made with electronic-grade float-zone silicon. The presence of boron-oxygen related defects in the cells is also investigated, and we confirm that these defects can be partially deactivated permanently by annealing under illumination. V

show abstract

“…One of the most significant drawbacks of Si-based solar cells is the low efficiency of power generation due to the limited range of high spectral susceptibility of crystalline silicon to sunlight. There are various options to increase the efficiency [2][3][4][5][6][7][8], including additional layers based on up-conversion (UC) [6,7] and down-conversion [8] luminophores. These methods result in energy transfer from non-sensitive regions of the spectrum to crystalline silicon photosensitive range.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and downconversion luminescence of Ba4Y3F17:Yb:Pr solid solutions for photonics

Kuznetsov¹,

Низамутдинов²,

Mayakova³

et al. 2019

Nanosystems: Phys. Chem. Math.

View full text Add to dashboard Cite

Single-phase powders of Ba 4 Y 3 F 17 :Yb:Pr solid solutions with an average agglomerate size of 400 nm were synthesized by co-precipitation from aqueous solutions. It was shown that the down-conversion mechanism in the investigated samples was quantum cutting, with one photon absorbed by Pr 3+ ions resulting in two photons emitted by Yb 3+ ions. At first, overall the external quantum yield of down-conversion luminescence measured appeared to be relatively high, with a maximum value of 2.9 % for the Ba 4 Y 3 F 17 :Pr(0.1 %):Yb(10 %) sample. It makes this compound promising for Si-based solar cells efficiency enhancement.

show abstract

R&D pilot line production of multi-crystalline Si solar cells exceeding cell efficiencies of 18%

Cited by 37 publications

References 2 publications

Status and prospects of Al2O3-based surface passivation schemes for silicon solar cells

Status and prospects of Al2O3-based surface passivation schemes for silicon solar cells

Upgraded metallurgical-grade silicon solar cells with efficiency above 20%

Synthesis and downconversion luminescence of Ba4Y3F17:Yb:Pr solid solutions for photonics

Contact Info

Product

Resources

About