Photoluminescence properties of self-assembled chitosan-based composites containing semiconductor nanocrystals

Abstract

The photoluminescence (PL) properties of composites obtained by embedding green-emitting semiconductor nanocrystals (NCs) of two different types (thiol-capped CdTe and CdSe/ZnS) into chitosan-based biopolymer particles were investigated.

Improved mechanical, optical, and electrical properties of chitosan films with the synergistic reinforcing effect of carbon nanotubes and reduced graphene oxide for potential optoelectronic applications

“…Improvement of chitosan properties includes the addition of nanocrystals [7], quantum dots [8,9], nanoparticles [10], reduced graphene oxide [11], and carbon nanotubes [12] leading to the development of composites for a wide of applications such biomedical and sensing, because of its antimicrobial properties, biodegradability, biocompatibility, chemical stability, high reactivity, selectivity, easy film-forming ability [13], and photoluminescent (PL) properties [14][15][16].…”

Chitosan nanocomposites with CdSe/ZnS quantum dots and porphyrin

“…34,35 CS is used as a superadsorbent for porphyrin molecules 36 and strongly attracts negatively charged nanoparticles, e.g., quantum dots stabilized by thioglycolic acid (TGA). 37 The composition of QDs and porphyrin molecules with biodegradable polymeric carriers makes them biocompatible for medicine. CS reduces nanocomposites aggregation in a biological environment and increases interactions with biological molecules.…”