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Use of Calixarene Host Molecules to Stabilize Quantum-confined Cadmium Sulfide Formation

  • Robin R. Chandler (a1), Jeffery L. Coffer (a1), C. David Gutsche (a1), Iftikhar Alam (a1), Hong Yang (a2) and Russell F. Pinizzotto (a2)...

Abstract

We describe here the use of calixarenes, methylene (-CH2-) linked phenolic macrocyclic molecules, to stabilize the formation of quantum-confined (Q-) CdS clusters. Specifically, we focus on the use of an amino-derivatized calixarene, para-[(dimethylamino)- methyl]calix[6]arene, to stabilize Q-CdS clusters which have been characterized by High Resolution TEM (HREM), as well as absorption and emission spectroscopies. Under typical preparative conditions, an average particle diameter of 36 Å is obtained. HREM, in combination with Selected Area Diffraction (SAD), confirms the structure of the clusters as zinc blende CdS. Spectroscopic studies using absorption and emission methods indicate that both particle size and cluster photophysics are sensitive to the ratio of CdS to calixarene.

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Use of Calixarene Host Molecules to Stabilize Quantum-confined Cadmium Sulfide Formation

  • Robin R. Chandler (a1), Jeffery L. Coffer (a1), C. David Gutsche (a1), Iftikhar Alam (a1), Hong Yang (a2) and Russell F. Pinizzotto (a2)...

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