Size dependent variation of thermal diffusivity of CdSe nanoparticles based nanofluid using laser induced mode-matched thermal lens technique

被引：8

作者：

Augustine A.K. ^{[1
]}

Mathew S. ^{[1
]}

Girijavallabhan C.P. ^{[1
]}

Radhakrishnan P. ^{[1
]}

Nampoori V.P.N. ^{[1
]}

Kailasnath M. ^{[1
]}

机构：

[1] International school of photonics, Cochin University of Science and Technology, 682022, Kochi

来源：

Journal of Optics (India) | 2015年 / 44卷 / 01期

关键词：

Nanoparticle; Thermal diffusivity; Thermal lens;

D O I：

10.1007/s12596-014-0213-x

中图分类号：

学科分类号：

摘要：

Here we report a facile one-pot method for the preparation of high-quality CdSe nanoparticles (NPs) in aqueous solution under an air atmosphere using reflux. CdSe nanoparticles with tunable optical absorption and highly luminescent emission spectra of the size 4.6 nm–5.1 nm samples are discussed. Dual beam mode-matched thermal lens technique has been employed to study the effect of heat diffusion in the size series of CdSe nanoparticles. It is found that thermal diffusivity of 0.63 ×10−3 cm2/s, decreases with the increase in size of the CdSe nanoparticles. This change in thermal diffusivity makes the material for novel thermal applications. Characterization of the nanoparticles have done with TEM, SEM and XRD.; [Figure not available: see fulltext.] © 2014, The Optical Society of India.

引用

页码：85 / 91

页数：6

共 26 条

[1]

Gupta P., Ramrakhiani M., Influence of the particle size on the optical properties of CdSe nanoparticles, Open. Nanosci. J, 3, 15, (2009)

[2]

Qu L., Peng X., Control of photoluminescence properties of CdSe nanocrystals in growth, J. Am. Chem. Soc, 124, 9, (2002)

[3]

Srivastava P., Singh K., Synthesis of CdSe nanoparticles by solvothermal route: structural, optical and spectroscopic properties, Adv. Mat. Lett, 3, 4, (2012)

[4]

Zedan A.F., Sappal S., Moussa S., El-Shall M.S., Ligand-controlled microwave synthesis of cubic and hexagonal CdSe nanocrystals supported on graphene. Photoluminescence quenching by graphene, J. Phys. Chem. C, 114, (2010)

[5]

Junjie Zhu O., Palchik, siguang Chen, and a. Gedanken, microwave assisted preparation of CdSe, PbSe, and Cu2-xSe nanoparticles, J. Phys. Chem. B, 104, (2000)

[6]

Ashtaputre S.S., Deshpande A., Marathe S., EWankhede M.E., Chimanpure J., Pasricha R., Urban J., Haram S.K., Gosavi S.W., Kulkarni S.K., Synthesis and analysis of ZnO and CdSe nanoparticles, Pramana. J. Phys, 65, (2005)

[7]

Ganapathy Raman S., Selvarajan P., Ratnam K., Chidambaradhanu, Studies of cadmium selenide nanoparticles synthesized by solvothermal route, Recent Res. Sci. Technol, 2, 10, (2010)

[8]

Yua W.W., Chang E., Drezek R., Colvin V.L., Water-soluble quantum dots for biomedical applications, Biochem. Biophys. Res. Commun, 348, (2006)

[9]

Peng X., Manna L., Yang W., Wickham J., Scher E., Kadavanich A., Alivisatos A.P., Shape control of CdSe nanocrystals, Nature, 404, (2000)

[10]

Wang Y., Lu J.P., Tong Z.F., Rapid synthesis of CdSe nanocrystals in aqueous solution at room temperature, Mater. Sci, 33, (2010)

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