Triplet exciton diffusion in metalorganic phosphorescent host-guest systems from first principles

Exciton dispersion from first principles

Matteo Gatti1,2,3,4 and Francesco Sottile1,2 1Laboratoire des Solides Irradiés, École Polytechnique, CNRS-CEA/DSM, F-91128 Palaiseau, France 2European Theoretical Spectroscopy Facility (ETSF) 3Nano-Bio Spectroscopy Group, Departamento Fı́sica de Materiales, Universidad del Paı́s Vasco, Centro de Fı́sica de Materiales CSIC-UPV/EHU-MPC and DIPC, Avenida Tolosa 72, E-20018 San Sebastián, Spain 4Synch...

Exciton multiplication from first principles.

Third-generation photovolatics require demanding cost and power conversion efficiency standards, which may be achieved through efficient exciton multiplication. Therefore, generating more than one electron-hole pair from the absorption of a single photon has vast ramifications on solar power conversion technology. Unlike their bulk counterparts, irradiated semiconductor quantum dots exhibit eff...

Negative polaron and triplet exciton diffusion in organometallic "molecular wires".

The dynamics of negative polaron and triplet exciton transport within a series of monodisperse platinum (Pt) acetylide oligomers is reported. The oligomers consist of Pt-acetylide repeats, [PtL(2)-C≡C-Ph-C≡C-](n) (where L = PBu(3) and Ph = 1,4-phenylene, n = 2, 3, 6, and 10), capped with naphthalene diimide (NDI) end groups. The Pt-acetylide segments are electro- and photoactive, and they serve...

Hydrogen influence on diffusion in nickel from first-principles calculations

Adsorption and diffusion of water on graphene from first principles

Jie Ma,1 Angelos Michaelides,2,* Dario Alfè,3 Laurids Schimka,4 Georg Kresse,4 and Enge Wang5,1 1Institute of Physics, Chinese Academy of Sciences, Box 603, Beijing 100190, China 2London Centre for Nanotechnology & Department of Chemistry, University College London, London WC1H 0AJ, UK 3Department of Earth Sciences & Department of Physics and Astronomy & London Centre for Nanotechnology, London...