硫化铅纳米粒子的三阶非线性光学特性研究

Majles Ara M H; Afsary M; Hatami M; Malekfar R; Boroojerdian P

doi:10.3788/OPE.20111909.2242

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硫化铅纳米粒子的三阶非线性光学特性研究

光学精密工程暨纳米科技国际研讨会论文 | 更新时间：2020-08-12

- 硫化铅纳米粒子的三阶非线性光学特性研究
- Investigation of third-order nonlinear optical properties of lead sulfide nanoparticles
- 光学精密工程 2011年19卷第9期页码：2242-2246
- 作者机构：
  
  1. Department of Physics, TarbiatMoallem University, Tehran,Iran
  2. Department of Physics, TarbiatModares University, Tehran, Iran
  3. Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, PO Box 1477893855 ,Tehran, Iran
- 作者简介：
- 基金信息：
  
  Supported by Fujian Science and Technology Plan (No.2002H022)()
- DOI：10.3788/OPE.20111909.2242
  中图分类号： TN304.24;TB383
- 收稿日期：2011-03-08，
  
  修回日期：2011-04-30，
  
  网络出版日期：2011-09-26，
  
  纸质出版日期：2011-09-26
- 稿件说明：
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Majles Ara M H, Afsary M, Hatami M, Malekfar R, Boroojerdian P. 硫化铅纳米粒子的三阶非线性光学特性研究[J]. 光学精密工程, 2011,19(9): 2242-2246

Majles Ara M H, Afsary M, Hatami M, Malekfar R, Boroojerdian P. Investigation of third-order nonlinear optical properties of lead sulfide nanoparticles[J]. Editorial Office of Optics and Precision Engineering, 2011,19(9): 2242-2246
Majles Ara M H, Afsary M, Hatami M, Malekfar R, Boroojerdian P. 硫化铅纳米粒子的三阶非线性光学特性研究[J]. 光学精密工程, 2011,19(9): 2242-2246 DOI： 10.3788/OPE.20111909.2242.

Majles Ara M H, Afsary M, Hatami M, Malekfar R, Boroojerdian P. Investigation of third-order nonlinear optical properties of lead sulfide nanoparticles[J]. Editorial Office of Optics and Precision Engineering, 2011,19(9): 2242-2246 DOI： 10.3788/OPE.20111909.2242.

摘要

针对硫化铅(PbS)特殊的三阶非线性光学特性

本文在水溶液里合成了PbS纳米粒子。紫外-可见光谱显示

由于使用了封端剂

合成的样品更加稳定。用紫外-可见吸收光谱和X射线衍射斑研究了PbS纳米粒子的特性

结果表明

由于纳米粒子尺寸减小

其吸收光谱显示极大的蓝移。利用Scherre方程估计PbS粒子的平均粒径约为8.2 nm。最后

基于使用了632.8 nm He-Ne激光器的用单光束

-扫描技术研究了所制备的纳米粒子的非线性光学特性。对3种具有不同摩尔数的样品的测试表明

计算所得的非线性折射率在-10

-7

(cm

/W)量级。

Abstract

PbS is a direct bandgap IV-VI semiconductor with a bandgap of 0.41 eV and an exciton Bohr radius of 18 nm at room temperature. It has exceptional third-order nonlinear optical properties and applications for optical devices. In this paper

we synthesize PbS nanoparticles in aqueous solution using different capping agents. UV-Vis spectra show that the sample is much more stable. The nanoparticles are investigated by UV-Vis absorption spectrum and X-ray diffraction pattern. As a result of the nanoparticle size reduction

we observe a larger blue shift in absorption spectrum. Using the Scherre equation

the mean particle size is estimated about 8.2 nm.The

-scan technique

which is a single beam method

is used to investigate the nonlinear optical properties of the as-prepared particles. We use a continues He-Ne laser with 632.8 nm wavelength in the set-up. The method is applied to three samples with different molarities and the nonlinear refractive index is calculated to be of the order of 10

-7

(cm

/W) with a negative sign.

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references

YU B, YIN G, ZHU C,et al.. Optical nonlinear properties of PbS nanoparticles studied by the Z-scan technique [J]. Optical Materials,1998,11:17-21.[2] LI C, SHI G, XU O, GUANG S,et al.. Nonlinear optical properties of the PbS nanorods synthesized via surfactant-assisted hydrolysis [J]. Materials Letters,2007,61: 1809-1811.[3] DING T, ZHANG J R, LONG S,et al.. Synthesis of HgS and PbS nanocrystals in a polyol solvent by microwave heating [J]. Microelectronic Engineering,2003,66:46-52.[4] WU M, ZHONG H, JIAO Z,et al.. Synthesis of PbS nanocrystallites by electron beam irradiation [J]. Colloids and Surfaces A: Physicochem. Eng. Aspects,2008:35-39.[5] ZHAO Y, LIAO X H, HONG J M,et al.. Synthesis of lead sulfide nanocrystals via microwave and sonochemical methods [J]. Materials Chemistry and Physics,2004,87:149-153.[6] ASUNSKIS D J, BOLOTIN I L, HANLEY L. Nonlinear optical properties of PbS nanocrystals grown in polymer solutions [J]. J. Phys. Chem. C,2008,112:9555-9558.[7] ZHAO X, GORELIKOV I, MUSIKHIN S,et al.. Synthesis and optical properties of thiol-stabilized PbS nanocrystals[J]. Langmuir,2005,21:1086-1090.[8] BAKUEVA L, GORELIKOV I, MUSIKHIN S,et al.. PbS quantum dots with stable efficient luminescence in the near-IR spectral rang [J]. Advanced Materials,2004: 926-929.

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