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Hybrid organic-inorganic coordination complexes as tunable optical response materials

Travis, W; Knapp, CE; Savory, CN; Ganose, AM; Kafourou, P; Song, X; Sharif, Z; ... Palgrave, RG; + view all (2016) Hybrid organic-inorganic coordination complexes as tunable optical response materials. Inorganic Chemistry , 55 (7) pp. 3393-3400. 10.1021/acs.inorgchem.5b02749. Green open access

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Abstract

Novel lead and bismuth dipyrido complexes have been synthesized and characterized by single-crystal X-ray diffraction, which shows their structures to be directed by highly oriented π-stacking of planar fully conjugated organic ligands. Optical band gaps are influenced by the identity of both the organic and inorganic component. Density functional theory calculations show optical excitation leads to exciton separation between inorganic and organic components. Using UV-vis, photoluminescence, and X-ray photoemission spectroscopies, we have determined the materials' frontier energy levels and show their suitability for photovoltaic device fabrication by use of electron- and hole-transport materials such as TiO2 and spiro-OMeTAD respectively. Such organic/inorganic hybrid materials promise greater electronic tunability than the inflexible methylammonium lead iodide structure through variation of both the metal and organic components.

Type: Article
Title: Hybrid organic-inorganic coordination complexes as tunable optical response materials
Location: United States
Open access status: An open access version is available from UCL Discovery
DOI: 10.1021/acs.inorgchem.5b02749
Publisher version: http://dx.doi.org/10.1021/acs.inorgchem.5b02749
Additional information: © 2016 American Chemical Society. This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
URI: https://discovery.ucl.ac.uk/id/eprint/1479382
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