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由无机六铼簇阳离子稳定的一维碘化铅杂化物作为一种新型宽带发射体。

One-dimensional lead iodide hybrid stabilized by inorganic hexarhenium cluster cations as a new broad-band emitter.

作者信息

Ly Giang Thi, Choi Jun, Kim Youngmee, Kim Yuna, Kim Sujin, Yang So-Hyeon, Kim Sung-Jin

机构信息

Department of Chemistry and Nanoscience, Ewha Womans University Seoul 03760 Republic of Korea

出版信息

RSC Adv. 2021 Jul 13;11(40):24580-24587. doi: 10.1039/d1ra04170c.

DOI:10.1039/d1ra04170c
PMID:35481008
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9036903/
Abstract

A novel one-dimensional (1D) hybrid {[ReS(PzH)][PbI(DMF)]}·6(DMF) with hexarhenium cluster cations has been synthesized and characterized by means of single-crystal X-ray diffraction. Two DMF oxygen atoms bridge three lead iodides to form a set of lead iodides, {[PbII(O)][PbI(O)][PbII(O)]}, and these sets of lead iodide share edges to form a 1D lead iodide chain, [PbI(DMF)] which has never been reported before and is different from the typical edge sharing of octahedral PbI units. 1D lead iodide chains are stacked along the axis, and [ReS(PzH)] cations with H-bonded DMF molecules to pyrazole N-H reside between 1D lead iodide chains. This 1D lead iodide hybrid shows strong broad-band emission with a peak at 634 nm. The excellent photoluminescent properties of the new lead iodide hybrid exhibit great potential for optoelectronic applications in photonic devices with broad-band emission and stability. This study introduces a new class of lead iodide hybrid compounds having new inorganic cluster cations rather than the organic amine cations that have been used in numerous studies to date. This work opens a promising path to overcome the instability of perovskites including of organic amine cations.

摘要

一种具有六铼簇阳离子的新型一维（1D）杂化材料{[ReS(PzH)][PbI(DMF)]}·6(DMF)已通过单晶X射线衍射进行了合成和表征。两个N,N-二甲基甲酰胺（DMF）氧原子桥连三个碘化铅形成一组碘化铅，{[PbII(O)][PbI(O)][PbII(O)]}，并且这些组的碘化铅共享边以形成一维碘化铅链，[PbI(DMF)]，这是以前从未报道过的，并且不同于典型的八面体PbI单元的边共享。一维碘化铅链沿轴堆叠，并且带有与吡唑N-H氢键合的DMF分子的[ReS(PzH)]阳离子位于一维碘化铅链之间。这种一维碘化铅杂化物显示出在634nm处有峰值的强宽带发射。新型碘化铅杂化物优异的光致发光性能在具有宽带发射和稳定性的光子器件的光电应用中展现出巨大潜力。本研究引入了一类新型的碘化铅杂化化合物，其具有新的无机簇阳离子而非迄今为止在众多研究中使用的有机胺阳离子。这项工作为克服包括有机胺阳离子在内的钙钛矿的不稳定性开辟了一条有前景的道路。

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