Light harvesting chromophore

Veggel and coworkers [137, 138] first reported the use of ruthenium(II) tris(2,2 -bipyridine) complexes ([Ru(bpy)3] +) and ferrocene as light-harvesting chromophores for sensitization of NIR luminescence from Nd(III) and Yb(III) ions. The Ru-Ln complexes (Ln = Nd 104, Yb 105) resulted from incorporating [Ru(bpy)3] + with m-terphenyl-based lanthanide complexes. Upon excitation of the Ru(bpy)s chromophore absorption with visible light up to 500 nm, both Ru-Nd and Ru-Yb complexes exhibited typical NIR luminescence because of effective Ru Ln energy transfer with the rates of 1.1 x 10 s for Ru-Nd complex and <1.0 X 10 s for Ru—Yb species. 

Light harvesting chromophore (photosensitizer) Susceptible to Charge Transfer... 

Meso-meso linked diporphyrins ([H2Por]2) covalently functionalized soluble single-walled carbon nanotubes ([H2Por]2-SWCNTs) have been successfully prepared [127]. As a light-harvesting chromophore, meso-meso linked diporphyrins have been incorporated into a photosynthetic electron-transfer model with... 

Calculations of excited state potential energy surfaces of light-harvesting chromophores beyond the initially excited Franck-Condon region are currently emerging as an important area for further theoretical work to guide development of improved molecular systems for photoinduced energy and electron transfer applications. 

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