Proper In deposition amount for on-demand epitaxy of InAs/GaAs single quantum dots

Shang Xiang-Jun^{1, 2}, Xu Jian-Xing^{1, 2}, Ma Ben^{1, 2}, Chen Ze-Sheng^{1, 2}, Wei Si-Hang^{1, 2}, Li Mi-Feng^{1, 2}, Zha Guo-Wei^{1, 2}, Zhang Li-Chun^{1, 2}, Yu Ying^{1, 2}, Ni Hai-Qiao^{1, 2}, Niu Zhi-Chuan^{1, 2, †,}

(a) SQD distribution on a 2-inch SI wafer, dots: SQD regions. (b) CCD imaging of grid marks during μPL. (c) 1/4 pieces in Dewa. (d) μPL spectral lines.