Disodium Benzodipyrrole Sulfonate as Neutral Hole-Transporting Materials for Perovskite Solar Cells
Disodium Benzodipyrrole Sulfonate as Neutral Hole-Transporting Materials for Perovskite Solar Cells
复制标题
DOI：
10.1021/jacs.8b01783
复制
发表时间：
2018-04-18
影响因子：
15
通讯作者：
Nakamura, Eiichi
中科院分区：
文献类型：
--
作者：
Shang, Rui;Zhou, Zhongmin;Nakamura, Eiichi
空穴传输材料（HTM）是有机电子器件中不可或缺的成分，通常包含供体/掺杂剂组合。我们报道了一种带有两个外消旋烷二基磺酸阴离子侧链的取代苯并[1，2-B：4，5-b ']二吡咯的二钠盐（BDPSO）作为中性、不吸湿、无掺杂剂的钙钛矿型铅（MAPbI（3））太阳能电池的HTM。这些有机/无机杂化分子可用于可调轨道水平和可控溶解度。氟化BDPSO具有与MAPbI 3匹配的能级，提供了以17.2%的效率和最小的滞后执行的倒置结构太阳能电池。使用BDPSO制造的太阳能电池器件显示出显著的存储和操作稳定性。
Hole-transporting material (HTM) is an indispensable constituent in organic electronic devices, generally comprising a donor/dopant combination. We report that a disodium salt of substituted benzo[1,2-b:4,5-b']dipyrrole bearing two racemic alkanediylsulfonate anion side chains (BDPSOs) serves as a neutral, nonhygroscopic, dopant-free HTM for lead perovskite (MAPbI(3)) solar cells. These organic/inorganic hybrid molecules are useful for tunable orbital level and controllable solubility. A fluorinated BDPSO has an energy level matched with MAPbI3, affording an inverted-structure solar cell that performs with 17.2% efficiency with minimal hysteresis. The solar cell devices fabricated using BDPSOs showed remarkable storage and operational stability.