title: "Though It Be but Little, It Is Fierce": Excited State Engineering of Conjugated Organic Materials by Fluorination.
abstract: Fluorination is frequently used to significantly change the properties of conjugated organic materials due to fluorine's exceptional properties; well-known is its impact on electronic structure, but it also impacts the geometry despite fluorine's small size. Less known, the changes in the electronic and geometrical properties may provoke drastic changes of the excited state properties like batho- and hypsochromic shifts of absorption and emission bands (inter alia leading to excited state switching), hypo- and hyperchromic effects, spectral broadening, and changes of the nonradiative deactivation pathways. The state of the art on these issues is summarized in the current Perspective to stimulate further discussions on this intriguing subject.
authors.affiliation: Department for Physical Chemistry, Faculty of Chemistry, University of Valencia , Avenida Dr. Moliner 50, 46100 Burjassot (Valencia), Spain.|Madrid Institute for Advanced Studies, IMDEA Nanoscience , Calle Faraday 9, Campus Cantoblanco, 28049 Madrid, Spain.
authors.forename: Begoña
authors.initials: B
authors.lastname: Milián-Medina
authors.affiliation: Madrid Institute for Advanced Studies, IMDEA Nanoscience , Calle Faraday 9, Campus Cantoblanco, 28049 Madrid, Spain.
authors.forename: Johannes
authors.identifier: http://orcid.org/0000-0001-8177-7919
authors.initials: J
authors.lastname: Gierschner