Properties of Solar Cells/Modules with Selective Emitter on Multicrystalline Silicon

2011 ◽  
Author(s):  
Sven Germershausen ◽  
Lars Bartholomäus ◽  
Anja Schieferdecker ◽  
Ulf Seidel ◽  
Karl Heinz Küsters
Keyword(s):  
Solar Cells ◽  
Multicrystalline Silicon ◽  
Selective Emitter

scholarly journals 17.6% Conversion Efficiency Multicrystalline Silicon Solar Cells Using the Reactive Ion Etching with the Damage Removal Etching

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Ji-Myung Shim ◽  
Hyun-Woo Lee ◽  
Kyeong-Yeon Cho ◽  
Jae-Keun Seo ◽  
Ji-Soo Kim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Short Circuit ◽  
Reactive Ion Etching ◽  
Open Circuit ◽  
Multicrystalline Silicon ◽  
Textured Surface ◽  
Textured Surfaces ◽  
Ion Etching ◽  
Selective Emitter

For lower reflectance, we applied a maskless plasma texturing technique using reactive ion etching (RIE) on acidic-textured multicrystalline silicon (mc-Si) wafer. RIE texturing had a deep and narrow textured surface and showed excellent low reflectance. Due to plasma-induced damage, unless the RIE-textured surfaces have the proper damage removal etching (DRE), they have a drop inVocand FF. RIE texturing with a proper DRE had sufficiently higher short circuit current(Isc)than acidic-textured samples without a drop in open circuit voltage(Voc). And in order to improve efficiency of mc-Si solar cell, we applied RIE texturing with optimized DRE condition to selective emitter structure. In comparison with the acidic-textured solar cells, RIE-textured solar cells have above 200 mA absolute gain in Isc. And optimized RIE samples with a DRE by HNO3/HF mixture showed 17.6% conversion efficiency, which were made using an industrial screen printing process with selective emitter structure.

scholarly journals Effect of Subgrains on the Performance of Mono-Like Crystalline Silicon Solar Cells

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Su Zhou ◽  
Chunlan Zhou ◽  
Wenjing Wang ◽  
Yehua Tang ◽  
Jingwei Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Crystalline Silicon ◽  
High Surface ◽  
Multicrystalline Silicon ◽  
Silicon Solar Cells ◽  
Textured Surface ◽  
Shunt Resistance ◽  
Selective Emitter ◽  
Crystalline Silicon Solar Cells ◽  
Wide Range

The application of Czochralski (Cz) monocrystalline silicon material in solar cells is limited by its high cost and serious light-induced degradation. The use of cast multicrystalline silicon is also hindered by its high dislocation densities and high surface reflectance after texturing. Mono-like crystalline silicon is a promising material because it has the advantages of both mono- and multicrystalline silicon. However, when mono-like wafers are made into cells, the efficiencies of a batch of wafers often fluctuate within a wide range of >1% (absolute). In this work, mono-like wafers are classified by a simple process and fabricated into laser doping selective emitter cells. The effect and mechanism of subgrains on the performance of mono-like crystalline silicon solar cells are studied. The results show that the efficiency of mono-like crystalline silicon solar cells significantly depends on material defects that appear as subgrains on an alkaline textured surface. These subgrains have an almost negligible effect on the optical performance, shunt resistance, and junction recombination but significantly affect the minority carrier diffusion length and quantum efficiency within a long wavelength range. Finally, an average efficiency of 18.2% is achieved on wafers with hardly any subgrain but with a small-grain band.

Bulk passivation of multicrystalline silicon solar cells induced by high-rate-deposited (> 1 nm/s) silicon nitride films

2003 ◽  
Vol 11 (2) ◽  
pp. 125-130 ◽  
Author(s):  
J. Hong ◽  
W. M. M. Kessels ◽  
F. J. H. van Assche ◽  
H. C. Rieffe ◽  
W. J. Soppe ◽  
...  
Keyword(s):  
Solar Cells ◽  
Silicon Nitride ◽  
High Rate ◽  
Multicrystalline Silicon ◽  
Silicon Solar Cells ◽  
Silicon Nitride Films ◽  
Bulk Passivation

Luminescence of defects and breakdown sites in multicrystalline silicon solar cells

2012 ◽  
Vol 209 (10) ◽  
pp. 1908-1912 ◽  
Author(s):  
D. Mankovics ◽  
A. Klossek ◽  
Ch. Krause ◽  
T. Arguirov ◽  
W. Seifert ◽  
...  
Keyword(s):  
Solar Cells ◽  
Multicrystalline Silicon ◽  
Silicon Solar Cells

Investigation of recombination processes in multicrystalline silicon solar cells

2017 ◽  
Author(s):  
A. V. Ermachikhin ◽  
T. A. Kholomina ◽  
V. G. Litvinov ◽  
A. D. Maslov ◽  
V. G. Mishustin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Multicrystalline Silicon ◽  
Silicon Solar Cells ◽  
Recombination Processes

Improvement of annealing procedure to suppress defect generation during impurity gettering in multicrystalline silicon for solar cells

2014 ◽  
Author(s):  
Isao Takahashi ◽  
Supawan Joonwichien ◽  
Kutsukake Kentaro ◽  
Satoru Matsushima ◽  
Ichiro Yonenaga ◽  
...  
Keyword(s):  
Solar Cells ◽  
Multicrystalline Silicon ◽  
Defect Generation ◽  
Annealing Procedure

Analysis of oxygen incorporation in unidirectionally solidified multicrystalline silicon for solar cells

2008 ◽  
Vol 310 (7-9) ◽  
pp. 2204-2208 ◽  
Author(s):  
Hitoshi Matsuo ◽  
R. Bairava Ganesh ◽  
Satoshi Nakano ◽  
Lijun Liu ◽  
Koji Arafune ◽  
...  
Keyword(s):  
Solar Cells ◽  
Multicrystalline Silicon ◽  
Oxygen Incorporation
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