Journal article
Biaxially Oriented CdSe Nanorods
Department of Physics, Norwegian University of Science and Technology, Høgskoleringen 5, N-7491 Trondheim, Norway1
Molecular Materials and Nanosystems, Eindhoven University of Technology, P.O. Box 513, NL-5600 MB Eindhoven, The Netherlands2
The Solar Energy Programme, Risø National Laboratory for Sustainable Energy, Technical University of Denmark - DTU, P.O. Box 49, DK-4000 Roskilde, Denmark3
Department of Physics, Technical University of Munich, James-Franck-Strasse 1, D-85747 Garching, Germany4
The shape, structure, and orientation of rubbing-aligned cadmium selenide (CdSe) nanorods on polymer coated glass substrates have been studied using transmission electron microscopy (TEM) and grazing incidence X-ray scattering combined with computer simulations. The nanorods are found to be of wurtzite structure and highly monodisperse, and have an essentially ellipsoidal shape with short axes of ∼8 nm and long axis of ∼22 nm.
The nanorods exhibit preferred biaxial orientation with the hexagonal a−c-plane parallel to the sample surface and the c-axis oriented along the rubbing direction of the sample. Some tendency of smectic-A ordering is observed. A quantitative model incorporating atomic structure, rod shape, and preferred orientation was developed for numerically simulating the diffraction peak positions, widths, and intensities, giving good correlation with the experimental observations.
| Language: | English |
|---|---|
| Publisher: | American Chemical Society |
| Year: | 2009 |
| Pages: | 10970-10974 |
| ISSN: | 15205827 and 07437463 |
| Types: | Journal article |
| DOI: | 10.1021/la9011795 |
