Laing Craig C, Kim Daehan, Park Jinu, Shen Jiahong, Hadar Ido, Hoffman Justin M, He Jiangang, Shin Byungha, Wolverton Chris, Kanatzidis Mercouri G
Department of Chemistry, Northwestern University, Evanston, IL, USA.
Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea.
Nat Mater. 2024 Feb;23(2):230-236. doi: 10.1038/s41563-023-01740-9. Epub 2024 Jan 3.
Rhenium chalcohalide cluster compounds are a photoluminescent family of mixed-anion chalcohalide cluster materials. Here we report the new material RbReSI, which crystallizes in the cubic space group Fm[Formula: see text]m and contains isolated [ReSI] clusters. RbReSI has a band gap of 2.06(5) eV and an ionization energy of 5.51(3) eV, and exhibits broad photoluminescence (PL) ranging from 1.01 eV to 2.12 eV. The room-temperature PL exhibits a PL quantum yield of 42.7% and a PL lifetime of 77 μs (99 μs at 77 K). RbReSI is found to be soluble in multiple polar solvents including N,N-dimethylformamide, which enables solution processing of the material into films with thickness under 150 nm. Light-emitting diodes based on films of RbReSI were fabricated, demonstrating the potential for this family of materials in optoelectronic devices.
铼卤硫化物簇合物是一类具有光致发光性质的混合阴离子卤硫化物簇合物材料。在此，我们报道了一种新型材料RbReSI，它结晶于立方空间群Fm[公式：见原文]m中，并且包含孤立的[ReSI]簇。RbReSI的带隙为2.06(5) eV，电离能为5.51(3) eV，并表现出范围从1.01 eV至2.12 eV的宽范围光致发光（PL）。室温下的PL表现出42.7%的PL量子产率和77 μs的PL寿命（77 K时为99 μs）。发现RbReSI可溶于多种极性溶剂，包括N，N - 二甲基甲酰胺，这使得该材料能够通过溶液法加工成厚度低于150 nm的薄膜。基于RbReSI薄膜制备了发光二极管，证明了这类材料在光电器件中的应用潜力。
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