●ゾルゲル・硫化法とは? →銅,亜鉛,錫を含む原料溶液を基板に塗布,乾燥. →複数回繰り返して厚膜を得る. →硫化水素を含む雰囲気中で加熱処理 →CZTS膜の完成 簡単に,良質な膜ができる
● 素子の作製法
半導体三層は全て大気圧下で成膜
窓層 →ZnO:Al ゾルゲル法
界面層 →CdS 化学溶液堆積法(CBD法)
吸収層→CZTS ゾルゲル・硫化法
●最高効率 4.13%
●文献など
(1) “Influence of H2S concentration on the properties of Cu2ZnSnS4 thin films and solar cells prepared by sol-gel sulfurization”,
Kazuya Maeda, Kunihiko Tanaka*, Yuki Fukui, Hisao Uchiki,
Solar Energy Materials and Solar Cells 95 (2011) pp. 2855-2860.
(2)” Chemical composition dependence of morphological and optical properties
of Cu2ZnSnS4 thin films deposited by sol-gel sulfurization and Cu2ZnSnS4 thin film solar cell efficiency”,
Kunihiko Tanaka, Yuki Fukui, Noriko Moritake, Hisao Uchiki,
Solar Energy Materials and Solar Cells 95 (2011) pp. 838-842.
(3) ”Cu2ZnSnS4 thin film solar cells prepared by non-vacuum processing”,
Kunihiko Tanaka, Masatoshi Oonuki, Noriko Moritake and Hisao Uchiki,
Solar Energy Material & Solar Cells 93 (2009) 583-587.
(4) “Preparation of Cu2ZnSnS4 thin films by sulfurizing sol-gel deposited precursors”,
Kunihiko Tanaka, Noriko Moritake and Hisao Uchiki,
Solar Energy Material & Solar Cells 91 (2007) 1199-1201.
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