Journal of the Ceramic Society of Japan
Online ISSN : 1348-6535
Print ISSN : 1882-0743
ISSN-L : 1348-6535
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Size-controlled glass frits with spherical shape for Al electrodes in Si solar cells
Jang Heui YIJung Hyun KIMYou Na KOYoung Jun HONGHye Young KOOYun Chan KANGHye Moon LEE
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2011 Volume 119 Issue 1396 Pages 954-960

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Abstract

Size-controlled Pb-based glass frits ranged from 0.48 to 1 µm prepared by spray pyrolysis are used as an inorganic binder for Al electrodes. The Al electrodes formed from the pastes with the glass frits above 0.76 µm have uniform distribution of glass material inside and on the surface of the electrodes. Pb-based glass frits improve the formation of Al–Si alloys by liquid phase sintering. The Al electrodes have well developed back-surface field layers and low specific resistances irrespective of the mean sizes of the glass frits. The specific resistances of the electrodes change from 28.4 to 38.6 µΩ·cm according to the mean sizes of the glass frits at a heat-up rate of 800°C. The specific resistances of the electrodes are slightly affected by the heat-up rates.

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© 2011 The Ceramic Society of Japan
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