当前位置:
X-MOL 学术
›
Sol. Energy Mater. Sol. Cells
›
论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
The influence of DMSO and ether via fast-dipping treatment for a perovskite solar cell
Solar Energy Materials and Solar Cells ( IF 6.9 ) Pub Date : 2018-06-01 , DOI: 10.1016/j.solmat.2017.10.024 Ki-Hwan Hwang , Sang Hun Nam , Dong In Kim , Hyeon Jin Seo , Jin-Hyo Boo
Solar Energy Materials and Solar Cells ( IF 6.9 ) Pub Date : 2018-06-01 , DOI: 10.1016/j.solmat.2017.10.024 Ki-Hwan Hwang , Sang Hun Nam , Dong In Kim , Hyeon Jin Seo , Jin-Hyo Boo
Abstract Preparing dense organic-inorganic hybrid perovskite film is hindered by the extremely low solubility of lead(II) iodide (PbI2) at one-step coating process using one-solution (PbI2 + CH3NH3I + DMF). Thus, dimethyl sulfoxide (DMSO) has been widely used to enhance the solubility through the formation of adducts. However, the required mixture of DMSO and DMF cannot be simultaneously evaporated at low temperatures, owing to the different boiling points, which are influenced by the surface morphology. Consequently, this also affects the solar energy conversion efficiency of the perovskite solar cells. In this study, we develop a new approach for controlling the evaporation of DMF and DMSO by dip-coating ether on the top of the prepared thin film composed of PbI2, methylammonium iodide (MAI), DMF, and DMSO. Interestingly, it reveals that ether acted as an agent for simultaneous evaporation at similar temperatures, which then allows it to control surface morphology, and achieve dense perovskite. The fabricated inverted-perovskite PbI2 thin film solar cell shows that the efficiency reached up to 16.3% with high reproducibility. The ether-dipping post-treatment serves as a promising means for enhancing the efficiency of perovskite solar cells.
中文翻译:
DMSO 和乙醚通过快速浸渍处理对钙钛矿太阳能电池的影响
摘要 制备致密的有机-无机杂化钙钛矿薄膜受到碘化铅 (II) (PbI2) 极低溶解度的阻碍,该问题在使用单一溶液 (PbI2 + CH3NH3I + DMF) 的一步涂覆工艺中受到阻碍。因此,二甲基亚砜 (DMSO) 已被广泛用于通过形成加合物来提高溶解度。然而,由于受表面形态影响的沸点不同,所需的 DMSO 和 DMF 混合物不能在低温下同时蒸发。因此,这也影响了钙钛矿太阳能电池的太阳能转换效率。在这项研究中,我们开发了一种控制 DMF 和 DMSO 蒸发的新方法,通过在制备的 PbI2、甲基碘化铵 (MAI)、DMF 和 DMSO 组成的薄膜顶部浸涂乙醚。有趣的是,它表明乙醚在相似的温度下充当同时蒸发的试剂,然后使其能够控制表面形态,并获得致密的钙钛矿。制造的倒置钙钛矿 PbI2 薄膜太阳能电池显示效率高达 16.3%,且具有高重现性。醚浸后处理是提高钙钛矿太阳能电池效率的一种很有前景的方法。
更新日期:2018-06-01
中文翻译:
DMSO 和乙醚通过快速浸渍处理对钙钛矿太阳能电池的影响
摘要 制备致密的有机-无机杂化钙钛矿薄膜受到碘化铅 (II) (PbI2) 极低溶解度的阻碍,该问题在使用单一溶液 (PbI2 + CH3NH3I + DMF) 的一步涂覆工艺中受到阻碍。因此,二甲基亚砜 (DMSO) 已被广泛用于通过形成加合物来提高溶解度。然而,由于受表面形态影响的沸点不同,所需的 DMSO 和 DMF 混合物不能在低温下同时蒸发。因此,这也影响了钙钛矿太阳能电池的太阳能转换效率。在这项研究中,我们开发了一种控制 DMF 和 DMSO 蒸发的新方法,通过在制备的 PbI2、甲基碘化铵 (MAI)、DMF 和 DMSO 组成的薄膜顶部浸涂乙醚。有趣的是,它表明乙醚在相似的温度下充当同时蒸发的试剂,然后使其能够控制表面形态,并获得致密的钙钛矿。制造的倒置钙钛矿 PbI2 薄膜太阳能电池显示效率高达 16.3%,且具有高重现性。醚浸后处理是提高钙钛矿太阳能电池效率的一种很有前景的方法。