The effect of Pb addition on the morphology of CdSe quantum dot

Young-Kuk Kim; Young-Sang Cho; Kookchae Chung; Chul-Jin Choi

doi:10.1117/12.860327

20 August 2010 The effect of Pb addition on the morphology of CdSe quantum dot

Young-Kuk Kim, Young-Sang Cho, Kookchae Chung, Chul-Jin Choi

Proceedings Volume 7755, Nanophotonic Materials VII; 775502 (2010) https://doi.org/10.1117/12.860327
Event: SPIE NanoScience + Engineering, 2010, San Diego, California, United States

Abstract

CdSe quantum dots had been synthesized with a hot injection method. It was shown that the addition of Pb ions in the initial precursor solution changed the morphology of CdSe nanocrystals from slightly prolate ellipsoid to branched rod. Photoluminescence (PL) of the branched nanocrystals showed rapid depression of emission intensity due to the morphological development to the branched nanocrystal induced by Pb addition. Low temperature PL spectrum indicated that the surface recombination of charge carrier resulted in the large depression of emission from the branched nanocrystal.

Citation Download Citation

Young-Kuk Kim, Young-Sang Cho, Kookchae Chung, and Chul-Jin Choi "The effect of Pb addition on the morphology of CdSe quantum dot", Proc. SPIE 7755, Nanophotonic Materials VII, 775502 (20 August 2010); https://doi.org/10.1117/12.860327

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