@article {Habinshuti2013,
	title = {Phase transformation of PbSe/CdSe nanocrystals from core-shell to Janus structure studied by photoemission spectroscopy},
	journal = {Physical Review B},
	volume = {87},
	number = {18},
	year = {2013},
	month = {may},
	pages = {184102},
	publisher = {Amer Physical Soc},
	abstract = {Photoelectron spectroscopic measurements have been performed, with synchrotron radiation on PbSe/CdSe heteronanocrystals that initially consist of core-shell structures. The study of the chemical states of the main elements in the nanocrystals shows a reproducible and progressive change in the valence-band and core-level spectra under photon irradiation, whatever the core and shell sizes are. Such chemical modifications are explained in light of transmission electron microscopy observations and reveal a phase transformation of the nanocrystals: The core-shell nanocrystals undergo a morphological change toward a Janus structure with the formation of semidetached PbSe and CdSe clusters. Photoelectron spectroscopy gives new insight into the reorganization of the ligands anchored at the surface of the nanocrystals and the modification of the electronic structure of these heteronanocrystals.},
	keywords = {BINDING-ENERGY, CATION-EXCHANGE, COLLOIDAL PBSE, CORE/SHELL QUANTUM DOTS, ELECTRONIC-STRUCTURE, EPITAXY, LEVEL SHIFT, RAY PHOTOELECTRON-SPECTROSCOPY, SURFACE-STRUCTURE, x-ray},
	doi = {10.1103/PhysRevB.87.184102},
	author = {Habinshuti, J. and Capiod, P. and Nguyen, T. H. and Justo, Y. and Avila, F. J. and Asensio, M. C. and Bournel, F. and Gallet, J. J. and Vobornik, I. and Fujii, J. and Addad, A. and Lambert, K. and Nys, J. P. and Lambert, Y. and Hens, Z. and Osherov, A. and Golan, Y. and Robbe, O. and Turrell, S. and Grandidier, B.}
}
