Abstract
The ultrafast optical technique was used to study the multiexciton states in size- and shape-controlled CdSe and PbSe nanocrystals (NC). The effect of the zero-dimensional to one-dimensional transition on the efficiency of multiparticle Auger recombination using a series of quantum rods with different aspect ratios was also investigated. The transition from the three-to two-particle recombination process was observed as the nanocrystal aspect ratio was increased. The effect of quantum confinement on impact ionization using a series of PbSe NC of different sizes was also investigated. The results show that impact ionization process in NCs can be used to increase the power conversion efficiency of NC-based solar cells.
| Original language | English |
|---|---|
| Pages (from-to) | 447-448 |
| Number of pages | 2 |
| Journal | Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS |
| Volume | 1 |
| Publication status | Published - Dec 1 2004 |
| Event | 2004 IEEE LEOS Annual Meeting Conference Proceedings, LEOS 2004 - Rio Grande, Puerto Rico Duration: Nov 7 2004 → Nov 11 2004 |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering