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Volumn 114, Issue 3, 2010, Pages 1227-1232

Photoinduced control over the self-organized orientation of amorphous molecular materials using polarized light

Author keywords

[No Author keywords available]

Indexed keywords

ANISOTROPY; AZOBENZENE; GRAIN BOUNDARIES; IRRADIATION; LIGHT POLARIZATION; MOLECULAR ORIENTATION; THIN FILMS;

EID: 76249087074     PISSN: 15206106     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp906625a     Document Type: Article
Times cited : (17)

References (50)
  • 1
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    • Lough, W. J., Wainer, I. W., Eds. Blackwell Science: Oxford, England
    • Lough, W. J., Wainer, I. W., Eds. Chirality in Natural and Applied Science; Blackwell Science: Oxford, England, 2002.
    • (2002) Chirality in Natural and Applied Science
  • 10
    • 0345850194 scopus 로고    scopus 로고
    • references therein
    • (b) Ichimura, K. Chem. Rev. 2000, 700, 1847, and references therein.
    • (2000) Chem. Rev. , vol.700 , pp. 1847
    • Ichimura, K.1
  • 44
    • 0003546549 scopus 로고    scopus 로고
    • Bérova, N., Nakanishi, K., Eds, Wiley-VCH: New York
    • Circular Dichroism, Principles and Applications; Bérova, N., Nakanishi, K., Eds, Wiley-VCH: New York, Wiley-VCH: New York, 2000.
    • (2000) Circular Dichroism, Principles and Applications
  • 47
    • 84906391526 scopus 로고    scopus 로고
    • note
    • The growth of birefringence can be described by a biexponential equation as follows: y = A(l-exp(-f/ti) + B(l-exp(-ř/r2)). The fitted parameters obtained are summarized in Table Sl. It is tempting to speculate that photoinduced behavior results from two processes, fast-ci's isomerization and slower reorientation of azobenzene moieties, which is similar to that reported in amorphous polymers containing DRl moieties in ref 18. However, we think the growth of birefringence cannot simply be interpreted in terms of photochemical and reorientation processes, because it includes the effects of changes in aggregation of the azobenzene moieties and/or in the free volume of the local distribution around the chromophores during excitation.
  • 48
    • 84906377423 scopus 로고    scopus 로고
    • A negative value of cp indicates a left-handed polarization rotation
    • A negative value of cp indicates a left-handed polarization rotation.
  • 50
    • 84906391620 scopus 로고    scopus 로고
    • According to the results of MOPAC, the dihedral angles of the materials are about 90°
    • According to the results of MOPAC, the dihedral angles of the materials are about 90°.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.