Synthesis of β-Ga2O3 microstructures with efficient photocatalytic activity by annealing of GaSe single crystal

- Novel β-Ga2O3 microstructures were achieved through annealing of GaSe single crystal.
- Micro-flowers and leaves were characterized through XRD, SEM and Raman spectroscopy.
- A possible growth mechanism was proposed.
- Photocatalytic performance was evaluated.