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Size Dependence of Molar Absorption Coefficients of CdSe Semiconductor Quantum Rods
Author(s) -
Shaviv Ehud,
Salant Asaf,
Banin Uri
Publication year - 2009
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200800874
Subject(s) - rod , band gap , absorption (acoustics) , semiconductor , condensed matter physics , potential well , oscillator strength , quantum , quantum dot , materials science , attenuation coefficient , chemistry , molecular physics , optics , nanotechnology , physics , optoelectronics , quantum mechanics , spectral line , composite material , medicine , alternative medicine , pathology
Fundamental properties: The molar absorption coefficients of CdSe quantum rods are determined experimentally as a function of their dimensions (see figure). Far above the band gap a simple dependence on volume is seen. The behavior at the band gap manifests a concentration of oscillator strength with decreased diameter in agreement with strong quantum confinement behavior.