Bilayer Thin Films That Combine Luminescent and Spin Crossover Properties for an Efficient and Reversible Fluorescence Switching

被引：11

作者：

Bas, Alin-Ciprian ^{[1
,2
]}

Thompson, Xavier ^{[1
]}

Salmon, Lionel ^{[1
]}

Thibault, Christophe ^{[2
]}

Molnar, Gabor ^{[1
]}

Palamarciuc, Oleg ^{[3
,4
]}

Routaboul, Lucie ^{[1
]}

Bousseksou, Azzedine ^{[1
]}

机构：

[1] Univ Toulouse, CNRS, LCC, F-31077 Toulouse, France

[2] Univ Toulouse, CNRS, LAAS, F-31077 Toulouse, France

[3] Moldova State Univ, Dept Chem, MD-2009 Kishinev, Moldova

[4] Polivalent 95 SRL, MD-2028 Kishinev, Moldova

来源：

MAGNETOCHEMISTRY | 2019年 / 5卷 / 02期

基金：

美国国家科学基金会;

关键词：

spin crossover; luminescence; thin films; COMPLEXES; TRANSITION; NANOCOMPOSITE; MODULATION; STABILITY; EMISSION; DEVICES;

D O I：

10.3390/magnetochemistry5020028

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

We report on the vacuum thermal deposition of bilayer thin films of the luminescent complex Ir(ppy)(3), tris[2-phenylpyridinato-C2, N]iridium(III), and the spin crossover complex [Fe(HB(tz)(3))(2)], bis[hydrotris(1,2,4-triazol-1-yl)borate]iron(II). Switching the spin state of iron ions from the low spin to the high spin state around 337 K leads to a reversible jump of the luminescence intensity, while the spectrum shape and the luminescence lifetime remain unchanged. The luminescence modulation occurs due to the different UV light absorption properties of the iron complex in the two spin states and its magnitude can therefore be precisely adjusted by varying the film thickness. These multilayer luminescence switches hold potential for micro-and nanoscale thermal sensing and imaging applications.

引用

页数：14

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