Stability and quantum yield effects of small molecule additives on solutions of semiconductor nanoparticles

Synthesis and characterization of photoluminescent In-doped CdSe nanoparticles

“…Highly photoluminescent CdSe nanoparticles have been observed due to improved passivation of surface defects with ligand coatings [1] and by capping the surface of the nanoparticles with an inorganic layer of higher band gap material [2][3][4]. These CdSe semiconductor nanoparticles have been studied for potential use in photovoltaic and electroluminescent devices [5][6][7][8][9].…”

Electronic energy transfer from sol–gel matrix and CdSe/ZnS quantum dots to protoporphyrin IX (PpIX) and its application for PpIX detection

“…CdSe nanoparticles were synthesized using a modified version of the method proposed by Qu and Peng [14], and CdSe/ZnS were synthesized according to the method reported by Gaunt et al [15], as described in our previous work [11]. Hydrophilic CdSe/ZnS QDs were synthesized by replacing the ligands surrounding trioctylphosphin oxide (TOPO)-coated CdSe/ZnS QDs with heterobifunctional ligands, such as mercaptopropionic acid (MPA).…”

A Facile One-Pot Synthesis of MSe (M = Cd or Zn) Nanoparticles Using Biopolymer as Passivating Agent

“…However the synthesis usually involve high temperature, sophisticated equipment, complicated processes or complex reagents which are not environmentally friendly and rigorous conditions such as injection of hazardous metal alkyls, which are toxic, volatile, low boiling point materials, explosive at elevated temperature and pyrophoric. Therefore standard airless techniques are required to protect reaction reagents and the as-synthesised nanoparticles from oxidation, a major source of their cytotoxicity (Guo et al, 2007;Austin et al, 2004;Gaunt et al, 2005). As a result of these concerns on toxicity coupled with rigorous conditions involved in the preparation of these materials, the search for greener, sustainable and environmentally benign methods is still ongoing.…”