Erik C Scher

Learn More
We report the preparation and structural characterization of core/shell CdSe/CdS/ZnS nanorods. A graded shell of larger band gap is grown around CdSe rods using trioctylphosphine oxide as a surfactant. Interfacial segregation is used to preferentially deposit CdS near the core, providing relaxation of the strain at the core/shell interface. The reported(More)
Inorganic nanocrystals with well-defined shapes are important for understanding basic size-dependent scaling laws, and may be useful in a wide range of applications. Methods for controlling the shapes of inorganic nanocrystals are evolving rapidly. This paper will focus on how we currently control the shape of nanocrystals and this will be illustrated using(More)
Nanoscale materials are currently being exploited as active components in a wide range of technological applications in various fields, such as composite materials, chemical sensing, biomedicine, optoelectronics and nanoelectronics. Colloidal nanocrystals are promising candidates in these fields, due to their ease of fabrication and processibility. Even(More)
4. A. M. Morales, C. M. Lieber, Science 279, 208 (1998). 5. L. Manna, E. C. Scher, A. P. Alivisatos, J. Am. Chem. Soc. 122, 12700 (2000). 6. Y. Xia et al., Adv. Mater. 15, 353 (2003). 7. J. N. Cha, G. D. Stucky, D. E. Morse, T. J. Deming, Nature 403, 289 (2000). 8. J. D. Hartgerink, E. Beniash, S. I. Stupp, Science 294, 1684 (2001). 9. T. Douglas, M. Young,(More)
The transition between four- and six-coordinate structures in CdSe nanocrystals displays simple transition kinetics as compared with the extended solid, and we determined activation volumes from the pressure dependence of the relaxation times. Our measurements indicate that the transformation takes place by a nucleation mechanism and place strong(More)
  • 1