Table 3

Size of Ge nanocrystals

Embedded matrixa

PL peak energy (eV)

dNC [confinement model] (nm)b

dNC (TEM) (nm)b


HfO2 ('RF')

1.67

7.1

7.8

Al2O3 ('RA')

1.75

6.6

7.1

SiO2 ('RS-2')

2.12

5.9

5.3


aGe nanocrystals embedded in different oxide matrices and bdNC, nanocrystal diameter; PL, photoluminescence; TEM, transmission electron microscopy; 'RF', 'RA', and 'RS-2', sample structures defined in Table 1.

Das et al. Nanoscale Research Letters 2012 7:143   doi:10.1186/1556-276X-7-143

Open Data