Crystallization behavior of the electrodeposited Sb2Te3 film was characterized and the effect of the amorphous-crystalline transition on the Seebeck coefficient was evaluated. The as-electrodeposited Sb2Te3 film was amorphous and exhibited the Seebeck coefficient of 268-322 mu V/K, which was much larger than the value of the crystalline Sb2Te3 film. When annealed at temperatures above 100 degrees C, the Seebeck coefficient of the Sb2Te3 film dropped significantly to 78-107 mu V/K due to the amorphous-crystalline transition at 94 degrees C. The thermal stability of the electrodeposited Sb2Te3 film was improved by the addition of Cu, and the crystallization temperature of the CuSbTe film increased up to 149.5 degrees C. (C) 2010 Elsevier B.V. All rights reserved.