Thanks doctor Ahmed for sharing your answer.

The estimation of quality of technology of preparation nanomaterials depends from application area. This is depended from tasks, which you will solve. In area application of NPs in solar cells, this is important to managing changing of band gap by variation size and composition of particles.

You might have a look at this book, written after a strategic foresight work:

Book Manufactured Nanomaterials by 2030 - Workplace health and sa...

Dear Dr. M. B. Muradov ,

for sharing your response.

Dear Dr. Michel Héry ,

for sharing your response.

Thanks doctor Ahmed for sharing your answer.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5766453/