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Back Cover: Formation of a honeycomb texture for multicrystalline silicon solar cells using an inkjetted mask (Phys. Status Solidi RRL 1/2012)
Author(s) -
Nievendick Jan,
Specht Jan,
Zimmer Martin,
Zahner Lorenz,
Glover William,
Stüwe David,
Rentsch Jochen
Publication year - 2012
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201190032
Subject(s) - materials science , texture (cosmology) , etching (microfabrication) , surface finish , surface roughness , reflection (computer programming) , layer (electronics) , optoelectronics , silicon , solar cell , deposition (geology) , optics , nanotechnology , composite material , computer science , image (mathematics) , paleontology , physics , artificial intelligence , sediment , biology , programming language
In order to couple more light into solar cells, their surface has to be textured. Usually, multicrystalline solar cells are textured by isotropic acidic etching, resulting in tex‐tures with a weighted reflectance between 23% and 30%. However, a lower reflection does not necessarily lead to a higher efficiency because of increased surface roughness. With a honeycomb (HC) structure formed by iso‐tropic etching through a mask, the reflectance can be reduced significantly while maintaining a low surface roughness. An industrially applicable approach to create a mask for a HC texture is inkjet printing. In previous publications it was mostly used to open a dielectric layer via inkjet deposition of an etchant. In contrast, Nievendick et al. ( pp. 7–9 ) used a directly printed inkjet mask for HC texturing. Using this method, openings smaller than the droplet size are produced, which make applications for HC texturing possible. In the publication a weighted re‐flection of 18.4% was achieved.