Laser Irradiation of Gd-Si and Gd-Si-Ge Colloid Mixtures for the Fabrication of Compound Nanoparticles

被引：6

作者：

Tarasenka, Natalie ^{[1
]}

Kiris, Vasili ^{[1
]}

Stankevicius, Evaldas ^{[2
]}

Tarasenko, Nikolai ^{[1
]}

Pankov, Vladimir ^{[3
]}

Krcma, Frantisek ^{[4
]}

Gecys, Paulius ^{[2
]}

Raciukaitis, Gediminas ^{[2
]}

机构：

[1] Natl Acad Sci Belarus, BI Stepanov Inst Phys, 68 Nezalezhnasti Ave, Minsk 220072, BELARUS

[2] Ctr Phys Sci & Technol, 231 Savanoriu Ave, LT-02300 Vilnius, Lithuania

[3] Belarusian State Univ, Dept Chem, 14 Leningradskaya Str, Minsk 220006, BELARUS

[4] Brno Univ Technol, Fac Chem, 118 Purkynova Str, Brno 61200, Czech Republic

来源：

CHEMPHYSCHEM | 2018年 / 19卷 / 23期

关键词：

colloids; gadolinium; laser-induced chemical interactions; magnetic properties; nanoparticles; GOLD; GADOLINIUM; SPHERES; LIQUID; FEMTOSECOND; NANOSECOND; PARTICLES; DYNAMICS; NANORODS;

D O I：

10.1002/cphc.201800753

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Binary (Gd5Si4, GdSi) and ternary (Gd5Si2Ge2) compound nanoparticles (NPs) were prepared by laser irradiation of a mixture of colloidal solutions containing NPs of the relevant elements. It is assumed that the compound NPs are formed by heating, co-melting, and chemical interactions in the alloyed droplets. The blackbody-like radiation of the heated NPs was used for temperature control of the NP-preparation process. The obtained results demonstrate that laser irradiation of colloidal NPs provides unique possibilities not only for the synthesis of compound NPs but also for control of their phase composition and size. The synthesized Gd-based compound NPs exhibited magnetic transition at an ordering temperature, T-C, in the range of 310-320 K. Thus, the magnetic properties of the synthesized particles confirm their potential for biomedical applications, in particular, for magnetic hyperthermia treatment.

引用

页码：3247 / 3256

页数：10

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