Title :
THz photoconductivity in Si nanocrystals: Issues of (non)percolation
Author :
Zajac, Vit ; Kuzel, Petr ; Nemec, Hynek ; Kadlec, Christelle ; Kusova, Katerina ; Pelant, Ivan
Author_Institution :
Inst. of Phys., Prague, Czech Republic
Abstract :
On a system of silicon nanocrystals we explain and demonstrate the importance of measuring THz photoconductivity spectra in a wide range of excitation densities. This allows one to independently characterize contributions of percolated and non-percolated parts of the sample to the total photoconductivity.
Keywords :
elemental semiconductors; nanostructured materials; percolation; photoconductivity; silicon; terahertz wave spectra; THz photoconductivity spectra; excitation densities; nonpercolation; silicon nanocrystals; Aggregates; Charge carriers; Nanocrystals; Photoconductivity; Silicon; Transient analysis;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665827
