About the Authors

Xiujie Ge

Roles Conceptualization, Methodology, Software, Visualization, Writing – original draft

Affiliations CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, P. R. China, University of Chinese Academy of Sciences, Beijing, P. R. China

Lan Chen

Roles Supervision, Writing – review & editing

Affiliation CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, P. R. China

Dexing Li

Roles Conceptualization, Methodology, Software, Supervision, Writing – original draft

lidx@nanoctr.cn (DL); gegl@nanoctr.cn (GG)

Affiliation CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, P. R. China

Renxiao Liu

Roles Resources, Writing – review & editing

Affiliation CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, P. R. China

Guanglu Ge

Roles Funding acquisition, Supervision, Writing – review & editing

lidx@nanoctr.cn (DL); gegl@nanoctr.cn (GG)

Affiliation CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, P. R. China

Competing Interests

The authors have declared that no competing interests exist.