Time efficient texturization of multicrystalline silicon in the HF/HNO3 solutions and its effect on optoelectronic parameters of solar cells

• Autorzy: Kulesza G. , Panek P. , Zięba P.

Identyfikatory

DOI

10.1016/j.acme.2014.02.007

• Języki publikacji: EN

Abstrakty

EN

In this paper the improving photovoltaic conversion efficiency of multicrystalline silicon solar cells obtained by acid texturization is presented. Different solutions from two various composition ranges of HF:HNO3:CH3COOH/H2O system were examined. The influence of the HF/HNO3 content, type of diluents and texturization process time on the basic optoelectronic parameters of multicrystalline solar cells was also studied. This research brings new experimental receipt which allows to obtain the proper surface morphology after the texturization in a very short time of 60 s. The optimal acid volume etching ratio was found to be HF:HNO3:H2O = 7:1:2. For the first time, etching lasting 1 min causes the lowering the reflectivity value below 12% and also improves the conversion efficiency by 22% in relation to the reference sample without acid texture. The inverse HF/HNO3 ratio resulted in two times higher diameter of obtained rounded pits which allowed better coverage of the front metal grid patterning over the flat surface. Moreover, the higher reflectance value was accompanied by relatively high efficiency up to 13.9%.

Słowa kluczowe

EN

texturization; acidic etching; multicrystalline silicon; silicon solar cell; photovoltaics

PL

fotowoltaika; konwersja fotowoltaiczna; ogniwo słoneczne

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2014
• Tom: Vol. 14, no. 4
• Strony: 595--601
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Kulesza G.

• Institute of Metallurgy and Materials Science of the Polish Academy of Sciences, 25 Reymonta St., 30-059 Krakow, Poland

autor

Panek P.

• Institute of Metallurgy and Materials Science of the Polish Academy of Sciences, 25 Reymonta St., 30-059 Krakow, Poland

autor

Zięba P.

• Institute of Metallurgy and Materials Science of the Polish Academy of Sciences, 25 Reymonta St., 30-059 Krakow, Poland

Bibliografia

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