Characterization of PMMA quantum dot composite fabricated by pre- polymerizing method

摘要

We characterized a PMMA-quantum-dot (QD) composite fabricated by pre-polymerization of PMMA and dispersing commercially available colloidal semiconductor QDs using photoluminescence and absorption measurements. The QDs are stabilized in rapidly formed oligomer matrices, and the complete polymerization of the PMMA-QD composite is achieved by commonly used polymerization. The properties of the PMMA-QD composite are compared with the QDs in colloidal solution. Photoluminescence vs. temperature was measured from 10K to room temperature and showed a maximum value around 45 K.