TiO2/Bi2S3光阳极的制备及其光电性能

被引：0

作者：

毛志平 ^{[1
,2
]}

李芳 ^{[1
]}

王莎 ^{[1
]}

王坤杰 ^{[1
]}

吴卓朋 ^{[1
]}

于仁红 ^{[1
]}

李新利 ^{[1
]}

机构：

[1] 河南科技大学材料科学与工程学院

[2] 有色金属新材料与先进加工技术省部共建协同创新中心

来源：

材料热处理学报 | 2022年 / 43卷 / 09期

关键词：

二氧化钛; 异质结; 光阳极; 光电性能;

D O I：

10.13289/j.issn.1009-6264.2022-0117

中图分类号：

TB332 [非金属复合材料]; TM914.4 [太阳能电池];

学科分类号：

摘要：

TiO2光学带隙较宽，对可见光的响应较弱。为拓宽TiO2光吸收范围和降低载流子复合概率，采用窄带隙的Bi2S3与TiO2复合，构建异质结光阳极复合材料。首先对复合材料的物相和微观形貌进行表征，其次分析了复合材料的光电性能，结合复合材料的光电特性优化了制备工艺。改变水热生长Bi2S3的沉积次数，重点分析Bi2S3对异质结光电性能的影响。结果表明：当Bi2S3水热沉积次数为2时，复合材料的光电性能最佳，光电流密度达到0.22 mA/cm2,电子寿命为61 ms。与纯TiO2相比，复合材料可显著提升对光吸收范围和强度，并提高了载流子的分离效率。

引用

页码：41 / 48

页数：8

共 24 条

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