Jump to main content
Jump to site search

Issue 9, 2012
Previous Article Next Article

Soft lithographic patterning of spin crossover complexes. Part 2: stimuli-responsive diffraction grating properties

Author affiliations

Abstract

Surface-relief diffraction gratings of various geometries were fabricated from the molecular spin crossover complex [FeII(hptrz)3](OTs)2 using the soft lithographic method described in Part 1 of this paper [Quintero et al., J. Mater. Chem., DOI: 10.1039/c2jm15662h]. The grating geometry and optical properties were obtained from atomic force microscopy and spectroscopic ellipsometry measurements. The grating diffraction efficiency (η) was determined as a function of the temperature at various wavelengths (400–700 nm) using a conoscopic microscopy setup. A significant effect of the molecular spin state change on η is demonstrated (ca. 3% modulation). Using scalar transmission theory the changes in the diffraction pattern were quantitatively traced back to the decrease of the real part of the refractive index (ΔnHL = –0.01) accompanying the 1A → 5T spin transition. These stimuli-responsive photonic devices exhibit useful properties for various applications. Here a proof of concept gas sensor application is demonstrated for the detection of alcohol vapor.

Graphical abstract: Soft lithographic patterning of spin crossover complexes. Part 2: stimuli-responsive diffraction grating properties

Back to tab navigation

Supplementary files

Publication details

The article was received on 04 Nov 2011, accepted on 22 Dec 2011 and first published on 25 Jan 2012


Article type: Paper
DOI: 10.1039/C2JM15663F
Citation: J. Mater. Chem., 2012,22, 3752-3757
  •   Request permissions

    Soft lithographic patterning of spin crossover complexes. Part 2: stimuli-responsive diffraction grating properties

    A. Akou, I. A. Gural'skiy, L. Salmon, C. Bartual-Murgui, C. Thibault, C. Vieu, G. Molnár and A. Bousseksou, J. Mater. Chem., 2012, 22, 3752
    DOI: 10.1039/C2JM15663F

Search articles by author

Spotlight

Advertisements