Synthesis of InAs and InP Nanocrystals

Stock solution of InAs Core Under an Ar atmosphere, 9 g of InCl was dissolved in 30 ml ofTOP at 260 °C, with stirring. Then solution was then cooled and taken into a glove box. The stock solution was prepared by mixing a desired amount of (TMS)3As and InCh-TOP solution with the As In molar ratios at 1 2 to 1 1.5. 

In the stock solution, InCla forms a complex with TO P. Although this complex has not been isolated, several examples of InCla-phosphine oxide complexes have been discussed [44], and an interaction between the Lewis acid-like InCl3 and the strongly donating phosphine or phosphine oxide ligand would be expected. This complex is necessary for success of the reaction, as it helps to maintain the solubility of the reaction intermediates and also establishes the interaction that ultimately passivates the surface of the nanocrystals. 

Termination of the particle is accomplished by the coordinating solvent medium. 

2 Stractural and Basic Optical Characterization of InAs and InP Nanocrystals 

The evaluation of nanocrystal structure encompasses several important areas, including the identity and crystallinity of the core, the morphology of the particles. 

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