Size-distribution-dependent optical properties of semiconductor microparticle composites

Optical properties of quasi-zero-dimensional CdSXSe1-X crystallites grown in a glass matrix

“…Hi=E4 , (10) where H is the Hamiltonian [Eq. (3)], i4iis the wave function, and E is the energy eigenvalue.…”

“…Second, they have large Kerr susceptibility [x3 from 1 0 -to 10 esu], which is more than several orders of magnitude larger than that of the bulk material, and short photoresponse times, lying in the picosecond range.' First, they are a good model for the investigation of quantum effect because of the 3-D confinement of charge carriers.…”

Particle-Size Distribution of CdSe Quantum Dots Determined by Photoluminescence Spectroscopy

“…More recently, optical absorption measurements in combination with photoluminescence data at room temperature have been employed to deduce the particle-size distribution of semiconductor microcrystals in commercial color glass filters. [6] We here report on low-temperature photoluminescence studies of experimental CdSe composite glasses. A simple model connecting the photoluminescence spectra with the distribution of particle radii provides us with a quick, reliable means of determining the sizedistribution of particles in the material.…”

Composite formation in CdSe:Cu2Se nanocrystal films, charge transport characteristics and heterojunction performance

“…[23][24][25] CdSe is an important II-VI semiconductor and has been extensively investigated for studying quantum size effects in semiconductor quantum structures. [26][27][28] Zhang et al 29 through theoretical studies predicted that CdSe can easily be n-doped and lightly p-doped. Cu 2 Se is a p-type semiconductor due to copper vacancies and has an indirect band gap of 1.1-1.27 eV 30 which makes it an absorber material and a direct bandgap between 2.0 and 2.3 eV which makes it a window material in solar cells.…”