Figure S3. The characterizations of the 2D Zn2(ZnTCPP) MOFs-PMMA/Pentacene structure. (a) The TEM image of the 2D Zn2(ZnTCPP) MOFs. (b) The cross-section SEM image of the device (inset, the AFM image of the 2D Zn2(ZnTCPP) MOFs).