title: Energy and charge transfer in nanoscale hybrid materials.
abstract: Hybrid materials composed of colloidal semiconductor quantum dots and π-conjugated organic molecules and polymers have attracted continuous interest in recent years, because they may find applications in bio-sensing, photodetection, and photovoltaics. Fundamental processes occurring in these nanohybrids are light absorption and emission as well as energy and/or charge transfer between the components. For future applications it is mandatory to understand, control, and optimize the wide parameter space with respect to chemical assembly and the desired photophysical properties. Accordingly, different approaches to tackle this issue are described here. Simple organic dye molecules (Dye)/quantum dot (QD) conjugates are studied with stationary and time-resolved spectroscopy to address the dynamics of energy and ultra-fast charge transfer. Micellar as well as lamellar nanostructures derived from diblock copolymers are employed to fine-tune the energy transfer efficiency of QD donor/dye acceptor couples. Finally, the transport of charges through organic components coupled to the quantum dot surface is discussed with an emphasis on functional devices.
authors.affiliation: Institut für Physikalische Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55099, Mainz, Germany.
authors.forename: Thomas
authors.initials: T
authors.lastname: Basché
authors.affiliation: Institut für Physikalische Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55099, Mainz, Germany.
authors.forename: Anne
authors.initials: A
authors.lastname: Bottin
authors.affiliation: Max Planck-Institut für Polymerforschung, Ackermannweg 10, 55128, Mainz, Germany.
authors.forename: Chen
authors.initials: C
authors.lastname: Li
authors.affiliation: Max Planck-Institut für Polymerforschung, Ackermannweg 10, 55128, Mainz, Germany.
authors.forename: Klaus
authors.initials: K
authors.lastname: Müllen
authors.affiliation: Department of Chemistry, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 151-747, South Korea.
authors.forename: Jeong-Hee
authors.initials: JH
authors.lastname: Kim
authors.affiliation: Department of Chemistry, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 151-747, South Korea.
authors.forename: Byeong-Hyeok
authors.initials: BH
authors.lastname: Sohn
authors.affiliation: Department of Advanced Materials, Hannam University, Daejeon, 305-811, South Korea.
authors.forename: Prem
authors.initials: P
authors.lastname: Prabhakaran
authors.affiliation: Department of Advanced Materials, Hannam University, Daejeon, 305-811, South Korea.
authors.forename: Kwang-Sup
authors.initials: KS
authors.lastname: Lee
mesh_terms: D004396:Coloring Agents / Q000737:chemistry; D004579:Electron Transport; D004735:Energy Transfer; D053758:Nanoparticles / Q000737:chemistry; D049329:Nanostructures / Q000737:chemistry*; D053770:Nanowires / Q000737:chemistry; D011108:Polymers / Q000737:chemistry; D045663:Quantum Dots / Q000737:chemistry; D012666:Semiconductors
chemical_list: D004396:Coloring Agents; D011108:Polymers
keywords: charge transfer; dye/pigments; energy transfer; nanostructures; quantum dots