Gd Metal-Organic Framework Thin Film for On-Chip Local Magnetic Refrigeration

被引:2
|
作者
Tejedor, Ines [1 ,2 ]
Kravchenko, Dmitry E. [3 ]
Gandara-Loe, Jesus [3 ]
Ameloot, Rob [3 ]
Gascon, Ignacio [1 ,2 ]
Roubeau, Olivier [1 ,2 ]
机构
[1] CSIC, Inst Nanociencia & Mat Aragon INMA, Zaragoza 50009, Spain
[2] Univ Zaragoza, Zaragoza 50009, Spain
[3] Katholieke Univ Leuven, Ctr Membrane Separat Adsorpt Catalysis & Spect, B-3001 Leuven, Belgium
关键词
ADIABATIC DEMAGNETIZATION; MOLECULAR COOLERS;
D O I
10.1021/acs.chemmater.4c00909
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
Dense metal-organic frameworks with high spin paramagnetic nodes are competitive materials for cryogenic magnetic refrigeration, particularly in applications for which local cooling is advantageous. We focus on obtaining thin films of gadolinium formate, which has a large volumetric magnetocaloric effect. Continuous and homogeneous deposits of gadolinium formate are successfully formed on silicon by means of aerosol jet printing, with control over the film thickness from 0.35 mu m up to 2.5 mu m. The excellent cooling power of the deposits is evidenced via direct measurements of the cooling of a 200 mu m silicon wafer down to sub-K temperatures by a single demagnetization from 1 T and 2 K, thereby demonstrating the potential of this approach for on-chip local magnetic refrigeration.
引用
收藏
页码:8239 / 8246
页数:8
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