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Structure design of lead-free chiral-polar perovskites for sensitive self-powered X-ray detection
Xin Dong, Tianqi Chen, Jing Liang, Lei Wang, Huajie Wu, Zhijin Xu, Junhua Luo, Lina Li*

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An elastic organic crystal with piezochromic luminescent behavior

Jiakun Bai*, Junhui Jia*, Aisen Li*

Chin. J. Struct. Chem., 2024, 43: 100323. DOI: 10.1016/j.cjsc.2024.100323

June 15, 2024


In summary, we obtained a centimeter-scale elastic crystal responsive to pressure using EPC. Analysis of single-crystal data, energy framework, etc., revealed that internal interactions, particularly C–H⋯π, C–H⋯N and C–H⋯S, buffer deformation. Under hydrostatic pressure, the crystals exhibited color and luminescence changes, including a bathochromic redshift and fluorescence enhancement attributed to RIM and increased π-π interactions. Upon pressure release, the fluorescence intensity reverted with 90% of the initial value, indicating reversible pressure-dependent luminescence. These findings highlight the potential of EPC for flexible smart high-pressure sensors and contribute to advances in responsive optics.

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