title: Extraordinary Strong Fluorescence Evolution in Phosphor on Graphene.
abstract: Optical transition between singlet and triplet is observed in phosphorescent platinum octaethylporphyrin (PtOEP), on a graphene substrate. PtOEP on single layer of graphene not only modulates the dominant emission wavelength but also enhances the emission intensity. This result addresses new light-matter interactions of the hybrid structure of graphene and a single molecule.
authors.affiliation: Department of Materials Science and Engineering and Graphene Research Center of KI for the NanoCentury, KAIST, Daejeon, 34141, South Korea.
authors.forename: Bo-Hyun
authors.initials: BH
authors.lastname: Kim
authors.affiliation: Department of Materials Science and Engineering and Graphene Research Center of KI for the NanoCentury, KAIST, Daejeon, 34141, South Korea.
authors.forename: Dae Chul
authors.initials: DC
authors.lastname: Kim
authors.affiliation: Department of Physics and Graphene Research Center of KI for the NanoCentury, KAIST, Daejeon, 34141, South Korea.
authors.forename: Min-Ho
authors.initials: MH
authors.lastname: Jang
authors.affiliation: Department of Materials Science and Engineering and Graphene Research Center of KI for the NanoCentury, KAIST, Daejeon, 34141, South Korea.
authors.forename: Jinwook
authors.initials: J
authors.lastname: Baek
authors.affiliation: Department of Applied Organic Materials Engineering, Inha University, Incheon, 22212, South Korea.
authors.forename: Donghyuk
authors.initials: D
authors.lastname: Park
authors.affiliation: National Nanofab Center, KAIST, Daejeon, 34141, South Korea.
authors.forename: Il-Suk
authors.initials: IS
authors.lastname: Kang
authors.affiliation: National Nanofab Center, KAIST, Daejeon, 34141, South Korea.
authors.forename: Yun Chang
authors.initials: YC
authors.lastname: Park
authors.affiliation: Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Jeonbuk, 55324, South Korea.
authors.forename: Seokhoon
authors.initials: S
authors.lastname: Ahn
authors.affiliation: Department of Physics and Graphene Research Center of KI for the NanoCentury, KAIST, Daejeon, 34141, South Korea.
authors.forename: Yong-Hoon
authors.initials: YH
authors.lastname: Cho
authors.affiliation: Materials Science and Engineering, University of Michigan, Ann Arbor, MI, USA.
authors.forename: Jinsang
authors.initials: J
authors.lastname: Kim
authors.affiliation: Department of Materials Science and Engineering and Graphene Research Center of KI for the NanoCentury, KAIST, Daejeon, 34141, South Korea.
authors.forename: Seokwoo
authors.initials: S
authors.lastname: Jeon
keywords: Pt-octaethylporphyrin; graphene; photoluminescence; singlet-triplet transition; wavelength modulation