Optical and electrochromic properties of thin films of ambipolar polyimides with pendant groups based on thioxanthenone derivatives
Kruchinin V. N. 1, Odintsov D. S.2, Shundrin L. A. 2, Shundrina I. K.2, Rykhlitsky S. V. 1, Spesivtsev E. V. 1, Gritsenko V. A. 1,3,4
1Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2Vorozhtsov Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
3Novosibirsk State University, Novosibirsk, Russia
4Novosibirsk State Technical University, Novosibirsk, Russia

PDF
The optical and electrochromic properties of thin films obtained by centrifugation from solutions containing ambipolar polyimides with pendant groups based on 9H-thioxanthene-9-one and its S-dioxide derivative are studied using spectral ellipsometry, spectrophotometry, and spectroelectrochemistry. It is shown that the spectral dependences of the refractive index n(E) and the absorption coefficient α(E) as well as the electrochromic properties of polyimide thin films under electrochemical reduction and oxidation conditions strongly depend on the type of the pendant group. Based on the estimates of the band gap Eg a conclusion is made about the possible promising use of thin films of polyimides as working layers in memristors of a new type. Keywords: memristors, dielectric films, ambipolar polyimides, ellipsometry, electrochromism.
Publisher:

Ioffe Institute

Institute Officers:

Director: Sergei V. Ivanov

Contact us:

26 Polytekhnicheskaya, Saint Petersburg 194021, Russian Federation
Fax: +7 (812) 297 1017
Phone: +7 (812) 297 2245
E-mail: post@mail.ioffe.ru