Revisiting an Ongoing Debate: What Role Do Surface Groups Play in Silicon Nanocrystal Photoluminescence?

• Published in: ACS photonics Vol. 4; no. 8; pp. 1920 - 1929
• Main Authors: Sinelnikov, Regina, Dasog, Mita, Beamish, John, Meldrum, Al, Veinot, Jonathan G. C
• Format: Journal Article
• Language: English
• Published: American Chemical Society 16.08.2017
• Subjects: temperature-dependent; photoluminescence; time-resolved photoluminescence; surface functionalization; silicon nanocrystals

The origin of photoluminescence (PL) in silicon nanocrystals (SiNCs) remains a subject of considerable debate. Size-dependent PL that supports the quantum confinement model has been proposed by several researchers. On the other hand, SiNC PL arising from surface states that are independent of nanocr...