Figure 2. Synthesis temperature versus Cu2O nanoparticles size

From

Surfactant Assisted Synthesis of Cuprous Oxide (Cu2O) Nanoparticles via Solvothermal Process

M. A. Khan, Mahboob Ullah, Tariq Iqbal, Hasan Mahmood, Ayaz A. Khan, Muhammad Shafique, A. Majid, Azhar Ahmed, Nawazish A. Khan

Nanoscience and Nanotechnology Research. 2015, 3(1), 16-22 doi:10.12691/nnr-3-1-3