| 金属-有机框架薄膜衍生的CoSe2/N共掺杂碳膜作DSSC对电极 |
| Metal-Organic Framework Thin-Film Derived CoSe2/N Co-doped Carbon Film as an Efficient Counter Electrode for Dye-Sensitized Solar Cells |
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| 摘要: 针对粉体MOF衍生材料存在制备工艺复杂、薄膜厚度难以控制等问题，我们通过液相外延分步生长法制备了一种金属有机框架薄膜（PIZA-1），然后以其作牺牲模板，在惰性氛围中制备了一种CoSe2和N共掺杂的碳膜（CoSe2/N-CF），并用作DSSC对电极，其具有制备简单、粘结力强、厚度可调等优势。系统表征了CoSe2/N-CF形貌特点、结构性质及电化学性能，并深入研究了不同厚度薄膜、CoSe2颗粒大小对DSSC的光伏性能的影响。结果表明，CoSe2/N-CF-15电极具有优异的催化活性，所组装的DSSC获得了8.68%的光电转化效率（PCE），高于相同条件下Pt电极组装电池的PCE（7.97%）。 |
| 关键词: 染料敏化太阳能电池 金属-有机框架薄膜 对电极 CoSe2 碳膜 |
| 基金项目: 湖南省教育厅优秀青年项目（No.19B143）、湖南省自然科学基金（No.2020JJ5118）和国家自然科学基金（No.51974115）资助。 |
| Abstract: Aiming at the problems of complex preparation process and difficult to control film thickness of powder MOF-derived materials, we used a facile method to prepare the CoSe2 and N co-doped carbon film (CoSe2/N-CF) derived from metal-organic framework thin film materials (PIZA-1) as counter electrode in DSSC, which takes advantage of simple preparation, strong adhesion and adjustable thickness. The morphology, structure and electrochemical performance of CoSe2/N-CF were systematic characterized and the relationship between film thickness and size of CoSe2 with photovoltaic performance of DSSC was discussed. The CoSe2/N-CF-15 exhibited outstanding catalytic activity and remarkable power conversion efficiency (PCE) of 8.68%, which is higher than that of Pt (7.97%). |
| Keywords: dye-sensitized solar cells metal organic framework thin film counter electrode CoSe2 carbon film |
| 投稿时间：2020-01-30 修订日期：2020-05-10 |
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| 欧金花,胡波年,何塞玉,韩瑜.金属-有机框架薄膜衍生的CoSe2/N共掺杂碳膜作DSSC对电极[J].无机化学学报,2020,36(9):1683-1689. |
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