In:
Applied Physics Letters, AIP Publishing, Vol. 73, No. 17 ( 1998-10-26), p. 2396-2398
Abstract:
Low molecular symmetry with regard to the conjugation path of the delocalized electrons was found to be a good guideline towards linearly conjugated molecules with large second-order hyperpolarizabilities γ. We show that this guideline is also valid for two-dimensionally conjugated systems. We experimentally demonstrate this by third-harmonic generation measurements of two-dimensionally conjugated organic molecules, and show that the observed effects can be explained by the symmetry of the electronic wave functions. In addition, the positive impact of the substitution of phenyl rings by thienyl rings on γ is discussed.
Type of Medium:
Online Resource
ISSN:
0003-6951
,
1077-3118
Language:
English
Publisher:
AIP Publishing
Publication Date:
1998
detail.hit.zdb_id:
211245-0
detail.hit.zdb_id:
1469436-0