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Raman spectroscopy of PbTe/CdTe nanocrystals

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Center for nano- and biophotonics (NB-Photonics)
Abstract
We studied the evolution of Raman signals stemming from colloidal PbTe/CdTe nanocrystals (NCs). The NCs were grown using the cation exchange method and samples having different amounts of CdTe as shell material were investigated. The observed Raman bands are correlated to pure tellurium modes and after introduction of CdTe its longitudinal optical (LO) mode becomes also visible. The tellurium modes' intensity rapidly decreases after cationic exchange due to the chemical bonding of the vacant tellurium atoms.

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Citation

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Chicago
Tschirner, Norman, Holger Lange, Karel Lambert, Zeger Hens, and Christian Thomsen. 2011. “Raman Spectroscopy of PbTe/CdTe Nanocrystals.” Physica Status Solidi B-basic Solid State Physics 248 (11): 2748–2750.
APA
Tschirner, N., Lange, H., Lambert, K., Hens, Z., & Thomsen, C. (2011). Raman spectroscopy of PbTe/CdTe nanocrystals. PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 248(11), 2748–2750.
Vancouver
1.
Tschirner N, Lange H, Lambert K, Hens Z, Thomsen C. Raman spectroscopy of PbTe/CdTe nanocrystals. PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS. 2011;248(11):2748–50.
MLA
Tschirner, Norman, Holger Lange, Karel Lambert, et al. “Raman Spectroscopy of PbTe/CdTe Nanocrystals.” PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS 248.11 (2011): 2748–2750. Print.
@article{1973927,
  abstract     = {We studied the evolution of Raman signals stemming from colloidal PbTe/CdTe nanocrystals (NCs). The NCs were grown using the cation exchange method and samples having different amounts of CdTe as shell material were investigated. The observed Raman bands are correlated to pure tellurium modes and after introduction of CdTe its longitudinal optical (LO) mode becomes also visible. The tellurium modes' intensity rapidly decreases after cationic exchange due to the chemical bonding of the vacant tellurium atoms.},
  author       = {Tschirner, Norman and Lange, Holger and Lambert, Karel and Hens, Zeger and Thomsen, Christian},
  issn         = {0370-1972},
  journal      = {PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS},
  language     = {eng},
  number       = {11},
  pages        = {2748--2750},
  title        = {Raman spectroscopy of PbTe/CdTe nanocrystals},
  url          = {http://dx.doi.org/10.1002/pssb.201100222},
  volume       = {248},
  year         = {2011},
}

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