Photoluminescence study of photodegradation of polysilanes

Y. Skryshevski; N. Ostapenko; A. Kadashchuk; A. Vakhnin; S. Suto

doi:10.1080/10587250108025715

Photoluminescence study of photodegradation of polysilanes

Y. Skryshevski, N. Ostapenko, A. Kadashchuk, A. Vakhnin, S. Suto

Research output: Contribution to journal › Conference article › peer-review

5 Citations (Scopus)

Abstract

Photodegradation in poly(methylphenylsilane) (PMPS) and poly(di-n-hexylsilane) (PDHS) films was studied by absorption and luminescence spectroscopy at T=295 and 5 K as function of wavelength, λ_irr, and duration of UV-irradiation, t_irr. It was shown that irradiation at longer wavelengths results in the scission of the longest segments of the polymer chain, while the short-wavelength irradiation leads to the scission of both the short and the long segments. This is due to competing processes of scission of short segments and energy transfer to long segments. The conformational transformation of polymer chain of irradiated PDHS from trans-conformation into helix-conformation has been found.

Original language	English
Pages (from-to)	37-42
Number of pages	6
Journal	Molecular Crystals and Liquid Crystals Science and Technology, Section A: Molecular Crystals and Liquid Crystals
Volume	361
DOIs	https://doi.org/10.1080/10587250108025715
Publication status	Published - 2001
Externally published	Yes
Event	III Interantionsl Conference on Electronic Processes in Organic Materials - Kharkiv, Ukraine Duration: 2000 May 22 → 2000 May 28

Keywords

Absorption spectra
Luminescence
Photoscission
Poly(dihexylsilane)
Poly(methylphenylsilane)
Trans-helix chain conformation

ASJC Scopus subject areas

Condensed Matter Physics

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10.1080/10587250108025715

Cite this

@article{3aa1fba1dc2e43c4bac8374f4d42a42b,

title = "Photoluminescence study of photodegradation of polysilanes",

abstract = "Photodegradation in poly(methylphenylsilane) (PMPS) and poly(di-n-hexylsilane) (PDHS) films was studied by absorption and luminescence spectroscopy at T=295 and 5 K as function of wavelength, λirr, and duration of UV-irradiation, tirr. It was shown that irradiation at longer wavelengths results in the scission of the longest segments of the polymer chain, while the short-wavelength irradiation leads to the scission of both the short and the long segments. This is due to competing processes of scission of short segments and energy transfer to long segments. The conformational transformation of polymer chain of irradiated PDHS from trans-conformation into helix-conformation has been found.",

keywords = "Absorption spectra, Luminescence, Photoscission, Poly(dihexylsilane), Poly(methylphenylsilane), Trans-helix chain conformation",

author = "Y. Skryshevski and N. Ostapenko and A. Kadashchuk and A. Vakhnin and S. Suto",

year = "2001",

doi = "10.1080/10587250108025715",

language = "English",

volume = "361",

pages = "37--42",

journal = "Molecular Crystals and Liquid Crystals",

issn = "1542-1406",

publisher = "Taylor and Francis Ltd.",

note = "III Interantionsl Conference on Electronic Processes in Organic Materials ; Conference date: 22-05-2000 Through 28-05-2000",

}

TY - JOUR

T1 - Photoluminescence study of photodegradation of polysilanes

AU - Skryshevski, Y.

AU - Ostapenko, N.

AU - Kadashchuk, A.

AU - Vakhnin, A.

AU - Suto, S.

PY - 2001

Y1 - 2001

N2 - Photodegradation in poly(methylphenylsilane) (PMPS) and poly(di-n-hexylsilane) (PDHS) films was studied by absorption and luminescence spectroscopy at T=295 and 5 K as function of wavelength, λirr, and duration of UV-irradiation, tirr. It was shown that irradiation at longer wavelengths results in the scission of the longest segments of the polymer chain, while the short-wavelength irradiation leads to the scission of both the short and the long segments. This is due to competing processes of scission of short segments and energy transfer to long segments. The conformational transformation of polymer chain of irradiated PDHS from trans-conformation into helix-conformation has been found.

AB - Photodegradation in poly(methylphenylsilane) (PMPS) and poly(di-n-hexylsilane) (PDHS) films was studied by absorption and luminescence spectroscopy at T=295 and 5 K as function of wavelength, λirr, and duration of UV-irradiation, tirr. It was shown that irradiation at longer wavelengths results in the scission of the longest segments of the polymer chain, while the short-wavelength irradiation leads to the scission of both the short and the long segments. This is due to competing processes of scission of short segments and energy transfer to long segments. The conformational transformation of polymer chain of irradiated PDHS from trans-conformation into helix-conformation has been found.

KW - Absorption spectra

KW - Luminescence

KW - Photoscission

KW - Poly(dihexylsilane)

KW - Poly(methylphenylsilane)

KW - Trans-helix chain conformation

UR - http://www.scopus.com/inward/record.url?scp=0034868778&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034868778&partnerID=8YFLogxK

U2 - 10.1080/10587250108025715

DO - 10.1080/10587250108025715

M3 - Conference article

AN - SCOPUS:0034868778

SN - 1542-1406

VL - 361

SP - 37

EP - 42

JO - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

T2 - III Interantionsl Conference on Electronic Processes in Organic Materials

Y2 - 22 May 2000 through 28 May 2000

ER -

Photoluminescence study of photodegradation of polysilanes

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

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