Citation: ZHENG Li-Si, FENG Miao, ZHAN Hong-Bing. Synthesis of CdS Quantum Dots and Their Optical Limiting Effect[J]. Acta Physico-Chimica Sinica, ;2012, 28(01): 208-212. doi: 10.3866/PKU.WHXB201228208 shu

Synthesis of CdS Quantum Dots and Their Optical Limiting Effect

1.
College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, P. R. China

Received Date: 27 June 2011
Available Online: 28 October 2011
Fund Project: 福建省自然科学基金(2009J01241)资助项目 (2009J01241)

Four kinds of CdS quantum dots (Qds) with four different surface-capping organic groups were prepared by a colloidal chemical method. The linear and nonlinear optical properties of the materials were characterized using transmission electron microscopy (TEM), ultraviolet-visible (UV-Vis) absorption spectroscopy, photoluminescence (PL) spectroscopy, and Z-scan measurements. The results show that the particle size, the surface morphology, and the defect concentration are the main factors that determine the nonlinear optical properties.
- CdS,
- Surface modification,
- Optical limiting,
- Z-scan measurement
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