Zhang, Y., G. Wu, C. Ding, F. Liu, D. Liu, T. Masuda, K. Yoshino, S. Hayase, R. Wang, and Q. Shen. “Surface-Modified Graphene Oxide/Lead Sulfide Hybrid Film-Forming Ink for High-Efficiency Bulk Nano-Heterojunction Colloidal Quantum Dot Solar Cells”. Nano-Micro Letters, vol. 12, May 2020, p. 111, doi:10.1007/s40820-020-00448-8.