Optical spectroscopy of polysilylene films | Zendy

Demchenko Yevhen V. | Zendy; Klimovič Josef | Zendy; Nešpůrek Stanislav | Zendy

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Optical spectroscopy of polysilylene films

Author(s) -

Demchenko Yevhen V.,

Klimovič Josef,

Nešpůrek Stanislav

Publication year - 2004

Publication title -

macromolecular symposia

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.257

H-Index - 76

eISSN - 1521-3900

pISSN - 1022-1360

DOI - 10.1002/masy.200450858

Subject(s) - spectroscopy , luminescence , materials science , energy transfer , wavelength , acceptor , photochemistry , analytical chemistry (journal) , crystallography , chemistry , molecular physics , optoelectronics , physics , condensed matter physics , chromatography , quantum mechanics

Luminescence of poly[cyclohexyl(methyl)silylene] films was studied by time‐resolved emission spectroscopy at temperatures from 15 K to 300 K. The main short‐wavelength peak, shifted with rising temperature to lower energies, showed time features typical of an energy donor. Three weak emission centres were found in the visible spectral region. They decayed more slowly having the time features of an energy acceptor. The rise in temperature made both the energy transfer and extension of the effective ‐conjugation length more efficient. Model calculations of the chain conformation energy showed the close‐to‐all‐trans and gauche helix minima for iso‐ and syndiotactic sequences and barriers between them.

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