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

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

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2 Scopus citations


A novel one-dimensional (1D) hybrid {[Re6S8(PzH)6][Pb3I8(DMF)2]}·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, {[PbI4/2I(ODMF)1/2][PbI4/2(ODMF)2/2][PbI4/2I(ODMF)1/2]}2−, and these sets of lead iodide share edges to form a 1D lead iodide chain, [Pb3I8(DMF)2]2−which has never been reported before and is different from the typical edge sharing of octahedral PbI6units. 1D lead iodide chains are stacked along theaaxis, and [Re6S8(PzH)6]2+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.

Original languageEnglish
Pages (from-to)24580-24587
Number of pages8
JournalRSC Advances
Issue number40
StatePublished - 2 Jul 2021

Bibliographical note

Funding Information:
This work was supported by a grant from the National Research Foundation of Korea (NRF), funded by the Korean government (MSIT) (NRF-2018R1A2B2005455 and 2018R1D1A1B07045327), and by a grant from the Korea Basic Science Institute (National Research Facilities and Equipment Center), funded by the Ministry of Education (2020R1A6C101B194).

Publisher Copyright:
© The Royal Society of Chemistry 2021.


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