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Seeded Synthesis of CdSe/CdS Rod and Tetrapod Nanocrystals
Published on: December 11, 2013
White Emitting Magic Sized CdSe Nanoclusters Using Edible Oils: A Green Approach
Pawan K Khanna1, Aditi Jadhav1, Priyesh V More1
1Nano Chemistry/QDs R&D Laboratory, Department of Applied Chemistry, Defence Institute of Advanced Technology (DIAT), Ministry of Defence, Defence Research and Development Organisation, Government of India, Girinagar, Pune 411025, India.
Abstract:
Herein; we present a green synthesis method for magic sized nanoclusters (MSNCs) of CdSe. The formation of MSNCs was examined using various edible oils viz; olive oil; mustard oil; castor oil; coconut oil and cod liver oil as capping agents. The source of Selenium is cyclo-octeno-1;2;3-selenadiazole which was decomposed (typically at 150 °C) in high boiling solvent. The comparative study has been carried out to verify the effect of different edible oils as capping agents on formation of CdSe to form MSNCs. We observed that only a certain capping agent (oil) delivers MSNCs of CdSe with stable white light emission for more than 12 months. The so-generated CdSe MSNCs show bright white light emission when excited with 365 nm light. Finally; the long term stability of as-prepared MSNCs using certain oil as capping agent is reported.
