Absence of redshift in the direct bandgap of silicon nanocrystals with reduced size

Affiliations

• ¹ State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, PO Box 912, Beijing 100083, China.
• ² Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
• ³ Materials and Nano Physics Department, KTH - Royal Institute of Technology, Kista, Stockholm, 16440, Sweden.
• ⁴ Renewable and Sustainable Energy Institute, University of Colorado, Boulder, Colorado 80309, USA.