Optical Nonlinearities of Iron doped Zinc Sulphide Quantum Dots

被引：1

作者：

Cinumon, K. V. ^{[1
]}

Prasanth, S. ^{[1
]}

Raj, D. Rithesh ^{[1
]}

Vineeshkumar, T. V. ^{[1
]}

Pillai, V. P. Mahadevan ^{[2
]}

Sudarsanakumar, C. ^{[1
]}

机构：

[1] Mahatma Gandhi Univ, Sch Pure & Appl Phys, Kottayam 686560, Kerala, India

[2] Univ Kerala, Dept Optoelect, Thiruvananthapuram 695581, Kerala, India

来源：

61ST DAE-SOLID STATE PHYSICS SYMPOSIUM | 2017年 / 1832卷

关键词：

PEG; ZnS nanoparticles; nonlinear optics; Quenching; FE;

D O I：

10.1063/1.4980362

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Polyethylene glycol (PEG) capped pure and Fe doped ZnS nanoparticles were successfully synthesized by chemical precipitation method. Cubic zinc blende phase of the samples was confirmed from X-ray diffraction. The average grain size was found to be in the range of 2-3 nm and was confirmed with TEM. The undoped and doped ZnS samples show blue emission with emission wavelength at 360 nm. A rapid luminescence quenching with increasing dopant concentration was observed. The nonlinear absorption coefficients of the doped and undoped samples were calculated using Z-scan technique.

引用

页数：3

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