Pressure-Induced Excitation-Dependent Emission Color Tuning and Enhancement in 1D Zigzag Edge-Sharing Perovskites (C6H10N2)PbX4 (X = Br, Cl)

IF 8 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Advanced Optical Materials Pub Date : 2024-11-29 DOI:10.1002/adom.202402136

Xueqian Wu, Yiyang Sun, Lingrui Wang, Yijia Huang, Jiaxiang Wang, Yifang Yuan, Urooj Shahzadi, Ruijing Fu, Kai Wang, Haizhong Guo

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Abstract

1D zigzag edge-sharing perovskites have generated intense research interest due to their unique structures and optoelectronic properties. Recent efforts have focused on refining these structures to enhance their efficiency across various applications. Herein, high-pressure is utilized to modulate the properties of two Pb-based perovskites, (AMP)PbCl₄ and (AMP)PbBr₄ (where AMP²⁺ = C₆H₁₀N₂²⁺), characterized by 1D zigzag edge-sharing [PbX₄]²⁻_∞ chains linked by AMP through hydrogen bonding. An inverse excitation-dependent emission phenomenon and emission enhancement are observed in these two perovskites, attributed to the contraction of inhomogeneously coordinated [PbX₆]⁴⁻ octahedra. Pressure-induced lattice contraction promotes the overlap of Pb and X orbitals, resulting in a decrease in the bandgap. Concurrently, pressure-induced phase transitions, due to the distortion of [PbX₆]⁴⁻ octahedra, lead to discontinuous decreases in the bandgap. These high-pressure optical and structural explorations facilitate the systematic design of halide perovskites with desired characteristics.

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来源期刊

Advanced Optical Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-OPTICS

CiteScore

13.70

自引率

6.70%

发文量

883

审稿时长

1.5 months

期刊介绍： Advanced Optical Materials, part of the esteemed Advanced portfolio, is a unique materials science journal concentrating on all facets of light-matter interactions. For over a decade, it has been the preferred optical materials journal for significant discoveries in photonics, plasmonics, metamaterials, and more. The Advanced portfolio from Wiley is a collection of globally respected, high-impact journals that disseminate the best science from established and emerging researchers, aiding them in fulfilling their mission and amplifying the reach of their scientific discoveries.