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“Yellow emitting” magic-size cadmium selenide nanocrystals via a simplified spray pyrolysis method
Rupinder K. Beri,Pawan K. Khanna,Vidyanand Singh,B.R. Mehta 한국물리학회 2011 Current Applied Physics Vol.11 No.3
Magic-size nanocrystals of cadmium selenide showing yellow-light emission were synthesized in a single-step spray pyrolysis process at 150 ℃. An organoselenium precursor dissolved in N,N-dimethyl formamide was introduced via a syringe pump and the droplets were decomposed in hot solution of cadmium oleate. The ratio of Cd:Se precursor, the process temperature at which the decomposition is carried out and the co-formation of quantum dots play critical role in unique optical property of yellowlight emission.