Fig. 2: The electronic structure transition of Zn-IPA MOF.

a UV–vis absorption spectra of Zn-IPA MOF upon compression to 20.0 GPa. b UV–vis absorption spectra of Zn-IPA at 1 atm and after pressure was released from 20.0 GPa. c PL spectra of Zn-IPA-20 irradiated by 355 nm laser. d The time-resolved PL decay curves of the Zn-IPA-20 measured at 518 nm and 553 nm, respectively. Two-dimensional projection of the absorption intensity upon (e) compression and (f) decompression. Source data are provided as a Source Data file.