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    • 84. 发明授权
    • 비진공 방식에 의한 CZTS계 광흡수층 제조방법
    • 通过非真空工艺制备基于CZTS的吸收层的制造方法
    • KR101449576B1
    • 2014-10-16
    • KR1020130036773
    • 2013-04-04
    • 한국에너지기술연구원
    • 곽지혜윤재호안승규신기식안세진조아라윤경훈어영주조준식박상현박주형유진수윤나경
    • H01L31/042H01L31/18
    • Y02E10/50H01L31/18H01L31/042
    • The present invention relates to a method for fabricating a light-absorbing layer of a CZTS-based solar cell. The present invention comprises: a step of spreading a precursor solution, where all the sources of copper, zinc, and tin are dissolved and one or more among the sources of sulfur and selenium are dissolved in a glycol ether solvent, on a substrate; a step of drying the spread solution with heat; and a step of sulfurizing or selenizing a dried thin film. The present invention dissolves metallic salt, thiourea, and/or selenourea in a glycol ether by using the sources of four or five elements forming a CZTS-based compound, spreads the solution on a substrate, and performs a sulfurization or a selenization process, thereby fabricating a CZTS-based light-absorbing layer through a non-vacuum process without using an explosive solvent. Also, the present invention dissolves the sources of elements forming a CZTS-based compound in a solvent at high concentrations, therefore can fabricate a CZTS-based light-absorbing layer with a desired thickness through a single spreading process, and thus can simplify processes.
    • 本发明涉及一种制造基于CZTS的太阳能电池的光吸收层的方法。 本发明包括:将基底上溶解铜,锌和锡的所有来源和硫和硒源中的一种或多种溶解在二醇醚溶剂中的前体溶液的扩散步骤; 用热量干燥铺展溶液的步骤; 以及将干燥的薄膜硫化或硒化的步骤。 本发明通过使用形成基于CZTS的化合物的四种或五种元素的源将二醇醚中的金属盐,硫脲和/或硒脲溶解在基底上,并将其溶解在底物上,进行硫化或硒化处理 通过非真空工艺制造基于CZTS的光吸收层,而不使用爆炸溶剂。 此外,本发明在溶剂中溶解形成CZTS系化合物的元素的来源高浓度,因此可以通过单次扩散法制造具有所需厚度的CZTS系的光吸收层,从而可以简化工序。