Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
All Green Solvents for Fabrication of CsPbBr3 Films for Efficient Solar Cells Guided by the Hansen Solubility Theory
Solar RRL ( IF 6.0 ) Pub Date : 2020-01-30 , DOI: 10.1002/solr.202000008 Xiaobing Cao 1 , Guoshuai Zhang 1 , Yifan Cai 1 , Long Jiang 1 , Xin He 1 , Qingguang Zeng 1 , Jinquan Wei 2 , Yi Jia 3 , Guichuan Xing 4 , Wei Huang 5
Solar RRL ( IF 6.0 ) Pub Date : 2020-01-30 , DOI: 10.1002/solr.202000008 Xiaobing Cao 1 , Guoshuai Zhang 1 , Yifan Cai 1 , Long Jiang 1 , Xin He 1 , Qingguang Zeng 1 , Jinquan Wei 2 , Yi Jia 3 , Guichuan Xing 4 , Wei Huang 5
Affiliation
|
Toxic solvents used in the fabrication of perovskite solar cells are an obstacle for their commercialization. Replacing those toxic solvents with green solvents is very important for both ecological environment safety and the health of operators working in manufactory and labs. CsPbBr3‐based solar cells have attracted increasing attention due to its high stability. Herein, high‐quality CsPbBr3 films are prepared using all green solvents based on a two‐step spin‐coating method. In the first step, a green solvent system of polyethylene glycol (PEG) with the addition of γ‐butyrolactone is used for preparing PbBr2 solutions by matching the Hansen solubility parameters (HSPs) between PbBr2 and the mixed solvent system. By optimizing the HSPs and viscosity, a new complex of PbBr2·(PEG) is formed by spin‐coating from the PbBr2 solution, followed by acetic acid dropping while spinning. In the second step, green water is used to dissolve CsBr to prepare a high concentration CsBr/H2O solution. High‐quality CsPbBr3 films with full coverage are obtained by spin‐coating CsBr/H2O solution onto the PbBr2·(PEG) films after annealing. As a result, a solar cell with configuration of fluorine‐doped tin oxide/TiO2/CsPbBr3/carbon exhibits a power conversion efficiency of 8.11% due to its high‐quality harvest layer.
中文翻译：
Hansen溶解度理论指导的用于高效太阳能电池的CsPbBr3薄膜制造的所有绿色溶剂
钙钛矿太阳能电池制造中使用的有毒溶剂是其商业化的障碍。用绿色溶剂代替这些有毒溶剂对于生态环境安全以及工厂和实验室工作人员的健康都很重要。基于CsPbBr 3的太阳能电池由于其高稳定性而引起了越来越多的关注。在此，采用两步旋涂法，使用所有绿色溶剂制备高质量的CsPbBr 3薄膜。在第一步骤中，聚乙二醇（PEG）在加入γ丁内酯的绿色溶剂体系用于制备PbBr 2级由PbBr之间的Hansen溶解度参数（HSP的）匹配的解决方案2和混合溶剂系统。通过优化HSP和粘度，通过从PbBr 2溶液中旋涂形成新的PbBr 2 ·（PEG）络合物，然后在旋转时滴加乙酸。在第二步骤中，使用绿水溶解CsBr以制备高浓度的CsBr / H 2 O溶液。通过在退火后将CsBr / H 2 O溶液旋涂到PbBr 2 ·（PEG）膜上，可以获得高质量的CsPbBr 3膜。结果，配置有氟掺杂的氧化锡/ TiO 2 / CsPbBr 3 /碳的太阳能电池由于其高质量的收获层而具有8.11％的功率转换效率。
更新日期：2020-01-30
中文翻译：
Hansen溶解度理论指导的用于高效太阳能电池的CsPbBr3薄膜制造的所有绿色溶剂
钙钛矿太阳能电池制造中使用的有毒溶剂是其商业化的障碍。用绿色溶剂代替这些有毒溶剂对于生态环境安全以及工厂和实验室工作人员的健康都很重要。基于CsPbBr 3的太阳能电池由于其高稳定性而引起了越来越多的关注。在此，采用两步旋涂法，使用所有绿色溶剂制备高质量的CsPbBr 3薄膜。在第一步骤中，聚乙二醇（PEG）在加入γ丁内酯的绿色溶剂体系用于制备PbBr 2级由PbBr之间的Hansen溶解度参数（HSP的）匹配的解决方案2和混合溶剂系统。通过优化HSP和粘度，通过从PbBr 2溶液中旋涂形成新的PbBr 2 ·（PEG）络合物，然后在旋转时滴加乙酸。在第二步骤中，使用绿水溶解CsBr以制备高浓度的CsBr / H 2 O溶液。通过在退火后将CsBr / H 2 O溶液旋涂到PbBr 2 ·（PEG）膜上，可以获得高质量的CsPbBr 3膜。结果，配置有氟掺杂的氧化锡/ TiO 2 / CsPbBr 3 /碳的太阳能电池由于其高质量的收获层而具有8.11％的功率转换效率。
京公网安备 11010802027423号