Fig. 11From: 2D Semiconductor Nanomaterials and Heterostructures: Controlled Synthesis and Functional Applicationsa The side view of GaPO4 demonstrating the out-of-plane structure of GaPO4. b For the secondary phosphatization treatment. c The AFM and HRTEM studies of 2D GaPO4 film. d The XRD, e Raman and f bandgap measurement of 2D GaPO4 film. Reprinted with permission from [160]Back to article page