Journal
CHEMPHYSCHEM
Volume 9, Issue 17, Pages 2574-2579Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cphc.200800482
Keywords
band structure parameters; cyclic voltammetry; quantum dots; quasi-particle gap; semiempirical calculations
Funding
- Abeda Inamdar Sr. College, Camp, Pune, India
Ask authors/readers for more resources
Band structure parameters such as the conduction band edge, the valence band edge and the quasi-particle gap of diffusing CdSe quantum dots (Q-dots) of various sizes were determined using cyclic voltammetry. These parameters are strongly dependent on the size of the Q-dots. The results obtained from voltammetric measurements are compared to spectroscopic and theoretical data. The fit obtained to the reported calculations based on the semi-empirical pseudopotential method (SEPM)-especially in the strong size-confinement region, is the best reported so far, according to our knowledge. For the smallest CdSe Q-dots, the difference between the quasi-particle gap and the optical band gap gives the electron-hole Coulombic interaction energy (J(e1,h1)). Interband states seen in the photoluminescence spectra were verified with cyclic voltammetry measurements.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available