卤化物包晶的大爆炸：结晶的起点

IF 1.8 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

MRS Communications Pub Date : 2024-07-25 DOI:10.1557/s43579-024-00611-x

Ana Palacios Saura, Joachim Breternitz, Armin Hoell, Susan Schorr

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引用次数: 0

摘要

混合卤化物过氧化物（HHPs）具有高功率转换效率和低成本溶液加工方法，是非常有前途的太阳能电池吸收材料。我们对不同溶剂（GBL、DMF 和混合物）中的 MAPbI3、FAPbI3 和 MAPbBr3 前驱体溶液进行了小角 X 射线散射，以深入了解 HHP 早期形成过程中的构件。我们提出了一个核壳模型，在这个模型中，[PbX6] 八面体构成了核，周围是由溶剂分子构成的壳，它解释了前驱体在溶液中的排列以及溶剂和卤化物如何影响这种排列。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

The big bang of halide perovskites: The starting point of crystallization

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The big bang of halide perovskites: The starting point of crystallization

Hybrid halide perovskites (HHPs) are very promising absorber materials for solar cells due to their high power conversion efficiency and the low-cost solution-based processing methods. We applied small angle X-ray scattering to MAPbI₃, FAPbI₃ and MAPbBr₃ precursor solutions in different solvents (GBL, DMF, and mixtures) to gain a deeper understanding of the building blocks during the early stage of HHP formation. We present a core–shell model where the core is formed by [PbX₆] octahedra surrounded by a shell of solvent molecules, which explains the arrangement of the precursors in solution and how the solvent and the halide influence such arrangement.

Graphical Abstract

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来源期刊

MRS Communications MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

2.60

自引率

10.50%

发文量

166

审稿时长

>12 weeks

期刊介绍： MRS Communications is a full-color, high-impact journal focused on rapid publication of completed research with broad appeal to the materials community. MRS Communications offers a rapid but rigorous peer-review process and time to publication. Leveraging its access to the far-reaching technical expertise of MRS members and leading materials researchers from around the world, the journal boasts an experienced and highly respected board of principal editors and reviewers.