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. 2022 Jun 17;13:3492. doi: 10.1038/s41467-022-31184-9

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© The Author(s) 2022

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 2 — Normalized photoluminescence (PL) spectra of (a) TPMI-Cl, (b) TPMI-Br, and (c) TPMI-I in the crystalline state at different excitation wavelengths (λ_ex); Insets: photos of the crystals taken under irradiation of a 365 nm UV lamp. Time-resolved photoluminescence decay curves and lifetimes (τ) of (d) TPMI-Cl, (e) TPMI-Br, and (f) TPMI-I taken at their corresponding emission maximums (λ_em). g Plots of the relative PL intensity (I_L/I_S) versus the λ_ex, where I_L and I_S are the intensity maximum of the long-wavelength emission and short-wavelength emission, respectively. h Excitation spectra of TPMI-Br in the crystalline state taken at λ_em of 415 nm and 500 nm. i Normalized PL spectra and quantum yields (QY) of TPMI-Br in the amorphous state at different λ_ex. Insets: photo of the TPMI-Br in the amorphous state taken under irradiation of a 365 nm UV lamp.