Recycling of diamond-wire sawing silicon powder by direct current assisted directional solidification
文献类型：期刊论文
| 作者 | Hu, Zhiqiang3,4; Wang, Guoliang3,4; Li, Jiayan3,4; Tan, Yi3,4; Liu, Yao2; Li, Pengting1,3,4 |
| 刊名 | WASTE MANAGEMENT
 |
| 出版日期 | 2023-02-15 |
| 卷号 | 157页码:190-198 |
| ISSN号 | 0956-053X |
| 关键词 | Photovoltaic waste Kerf loss silicon Directional solidification Joule heat Recovery |
| DOI | 10.1016/j.wasman.2022.12.023 |
| 通讯作者 | Li, Pengting(ptli@dlut.edu.cn) |
| 英文摘要 | As the unavoidable by-products in the production of solar cells, the recycling and reuse of diamond-wire sawing silicon powder (DWSSP) have always been a key issue in the solar energy industry. However, until now, there is no effective method to achieve effective recovery of high-purity silicon. In this work, a new method was proposed to achieve the recycling of DWSSP. Direct current, as an external means, was introduced into the recycling process of DWSSP, and its influence mechanism on impurity removal process was also discussed. By optimizing the local temperature gradient at the front of the Solid-Liquid interface, and the impurity diffusion behavior at the front of the interface was improved. After purification, the impurity content in the silicon ingot is reduced significantly. Among them, Al, as the main metal impurity element was reduced to less than 5ppmw (from 13580ppmw), and Ni (80.78ppmw), Fe (57.60ppmw), Ti (5.79ppmw), etc. decreased to less than 1ppmw. This work improved the purification efficiency of DWSSP, and put forward an optimized recycling method, which is expected to realize the direct reuse of DWSSP in the photovoltaic industry. |
| 资助项目 | National Natural Science Foundation of China ; Science and Technology Innovation Fund of Dalian ; Fundamental Research Funds for the Central Universities ; [51974057] ; [2019RT13] ; [2020RQ123] ; [DUT21LAB111] ; [DUT21ZD404] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000903728700002 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/181070]  |
| 专题 | 中国科学院海洋研究所 |
| 通讯作者 | Li, Pengting |
| 作者单位 | 1.Dalian Univ Technol, Sch Mat Sci & Engn, 2 Linggong Rd, Dalian 116024, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 3.Key Lab Energy Beam Met & Adv Mat Preparat Liaonin, Dalian 116024, Peoples R China 4.Dalian Univ Technol, Key Lab Mat Modificat Laser Ion & Electron Beams, Sch Mat Sci & Engn, Minist Educ, Dalian 116024, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Zhiqiang,Wang, Guoliang,Li, Jiayan,et al. Recycling of diamond-wire sawing silicon powder by direct current assisted directional solidification[J]. WASTE MANAGEMENT,2023,157:190-198. |
| APA | Hu, Zhiqiang,Wang, Guoliang,Li, Jiayan,Tan, Yi,Liu, Yao,&Li, Pengting.(2023).Recycling of diamond-wire sawing silicon powder by direct current assisted directional solidification.WASTE MANAGEMENT,157,190-198. |
| MLA | Hu, Zhiqiang,et al."Recycling of diamond-wire sawing silicon powder by direct current assisted directional solidification".WASTE MANAGEMENT 157(2023):190-198. |
入库方式： OAI收割
来源：海洋研究所
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