Journal
POLYHEDRON
Volume 102, Issue -, Pages 434-440Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.poly.2015.10.021
Keywords
Dielectrophoresis; Spin crossover; Microelectronic device; Thermal hysteresis; Stability
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Funding
- French-Romanian project ANR-UEFISCDI [9RO-FR/01.02.2013, ANR-12-IS07-0003-01]
- French Ministry of Foreign Affairs (MAEE)
- European community [PCIG11-GA-2012-317692]
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In this paper we report on the integration of micro-rods of the [Fe(Htrz)(2)(trz)](BF4) spin crossover compound into an-electronic switch-type device. The device has been fabricated by organizing the micrometric particles between interdigitated gold electrodes using dielectrophoresis and the influence of dielectrophoresis parameters on their integration is also examined. A particular attention was devoted to the investigation of the stability of the spin transition and the associated device properties. The stability of the particles before dielectrophoresis was investigated using variable temperature diffuse reflectivity experiments, which revealed a remarkable stability of the spin crossover even after performing 3000 switching cycles. We show also that the spin transition is not influenced by the solvents used for device fabrication, neither by the atmosphere (ambient air or vacuum) in which the device is used. The spin transition remains reproducible over several tens of cycles even at the device level, but the current in the device decreases continuously. (C) 2015 Elsevier Ltd. All rights reserved.
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