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Infrared Spectroscopy of Semiconductor Structures Based on Alkyl-Substituted Lanthanide (III) Clam-Shell Mono-, Di-, and Di-Trisphthalocyanine Complexes

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Abstract:

Optical properties of semiconductor structures based on clam-shell phthalocyanine complexes have been studied by Fourier Transform Infrared Spectrometry. Transmission spectra of metal-free monophthalocyanine, bis-phthalocyanine of Eu and Eu di-tris-phthalocyanine organic semiconductors were have been obtained and analyzed. Comparison of spectral data from different clam-shell complexes revealed that magnetic ff interaction of Eu atoms increase the energy of vibronic states which is clearly indicated by the spectral shift of absorption lines position. A new set of absorption lines in the 2360 รท 2341 cm−1 range was observed. It was suggested that these lines correspond to vibrations of orto-bis(oximetil)phenol group. It was found that vibronic modes of the phtalocyanine-ring reveal several absorption lines with spectral coordinates 526 cm−1, 502 cm−1, 484 cm−1, 467 cm−1 in the far infrared region.

Keywords: INFRARED SPECTROSCOPY; ORGANIC SEMICONDUCTORS; PHTHALOCYANINES

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jno.2011.1199

Publication date: December 1, 2011

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  • Journal of Nanoelectronics and Optoelectronics (JNO) is an international and cross-disciplinary peer reviewed journal to consolidate emerging experimental and theoretical research activities in the areas of nanoscale electronic and optoelectronic materials and devices into a single and unique reference source. JNO aims to facilitate the dissemination of interdisciplinary research results in the inter-related and converging fields of nanoelectronics and optoelectronics.
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