1. B. N. Pal , Y. Ghosh , S. Brovelli , R. Laocharoensuk , V. I. Klimov , J. A. Hollingsworth , and H. Htoon . Giant CdSe/CdS core/shell nanocrystal quantum dots as efficient electroluminescent materials: Strong influence of shell thickness on light-emitting diode performance. Nano Lett. 12, 331 (2012).444