The luminescence study of CsPbI3 nanoparticles embedded in Cs4PbI6 crystals.

Cs4PbI6, as a rarely investigated member of the Cs4PbX6 (X is a halogen element) family, has been successfully synthesized atlow temperatures by collaborators from National Taiwan University. Strong red to near-infrared (NIR) emission properties have been detected, and its optical emission centers have been identified to be numerous embedded perovskite-type α-CsPbI3 nanocrystallites (∼5 nm in diameter) based on investigations of temperature- and pressure-dependent photoluminescent properties. A NIR mini-LED for the biological application has been successfully fabricated using as-synthesized Cs4PbI6 crystals. This work provides information for the future development of infrared fluorescent nanoscale perovskite materials.
In that dataset, the scientific article with Supporting Information, raw data of excitation and emission spectra, temperature-dependent and pressure-dependent photoluminescence and decay profiles, and laser power dependent of luminescence are provided.

Cs₄PbI₆作为Cs₄PbX₆（X为卤族元素）家族中罕有被研究的成员，已由中国台湾大学的合作团队在低温下成功合成。该材料展现出强红光至近红外（near-infrared, NIR）发射特性，通过对其温度依赖与压力依赖的光致发光（photoluminescence）特性开展系统性研究，研究人员确定其光学发射中心为大量直径约5 nm的嵌入式钙钛矿型α-CsPbI₃纳米晶（perovskite-type α-CsPbI₃ nanocrystallites）。随后，团队利用所合成的Cs₄PbI₆晶体成功制备出一款用于生物应用的近红外微型LED（mini-LED）。本研究为红外荧光纳米级钙钛矿材料的后续发展提供了重要参考依据。
本数据集包含附带补充材料的学术论文、激发与发射光谱原始数据、温度依赖与压力依赖的光致发光及衰减曲线，以及发光的激光功率依赖特性数据。