Effect of molecular weight on the vibronic structure of a diketopyrrolopyrrole polymer | Zendy

Sophia C. Hayes | Zendy; Galatia K. Pieridou | Zendy; Michelle S. Vezie | Zendy; Sheridan Few | Zendy; Hugo Bronstein | Zendy; Iain Meager | Zendy; Iain McCulloch | Zendy; Jenny Nelson | Zendy

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Effect of molecular weight on the vibronic structure of a diketopyrrolopyrrole polymer

Author(s) -

Sophia C. Hayes,

Galatia K. Pieridou,

Michelle S. Vezie,

Sheridan Few,

Hugo Bronstein,

Iain Meager,

Iain McCulloch,

Jenny Nelson

Publication year - 2016

Publication title -

proceedings of spie, the international society for optical engineering/proceedings of spie

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.192

H-Index - 176

eISSN - 1996-756X

pISSN - 0277-786X

DOI - 10.1117/12.2238123

Subject(s) - raman spectroscopy , polymer , absorption (acoustics) , resonance (particle physics) , resonance raman spectroscopy , absorption spectroscopy , materials science , ground state , dipole , vibronic spectroscopy , spectroscopy , solvent , analytical chemistry (journal) , chemistry , photochemistry , molecule , optics , atomic physics , organic chemistry , physics , quantum mechanics , composite material

Resonance Raman Spectroscopy (RRS) is employed in this study to examine the influence of molecular weight on the optical response of a diketopyrrolopyrrole polymer (DPP-TT-T) in solution. The vibronic structure observed for the ground state absorption of this polymer is found to vary with molecular weight and solvent. Resonance Raman Intensity Analysis (RRIA) revealed that the absorption spectra can be described by at least two dipole-allowed transitions and the vibronic structure variation is due to differing contributions from linear and curved segments of the polymer

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