Concept
Photosensitizer
Related publications (112)
Impact of chlorination and ozonation of dissolved organic matter on its photo-induced production of long-lived photooxidants and excited triplet states
Urs von Gunten, Joanna Maria Houska, Silvio Canonica, Stephanie Christa Remke
Recent studies suggested that long-lived photooxidants (LLPO), which are reactive intermediates formed during irradiation of dissolved organic matter (DOM), may consist of phenoxyl radicals derived from phenolic moieties of the DOM. Besides the well-studie ...
PERGAMON-ELSEVIER SCIENCE LTD2023Symmetry and Rigidity for Boosting Erbium-Based Molecular Light-Upconversion in Solution
Jean-Claude Bünzli, Alexandre Fürstenberg
Previously limited to highly symmetrical homoleptic triple-helical complexes [Er(Lk)3]3+, where Lk are polyaromatic tridentate ligands, single-center molecular-based upconversion using linear optics and exploiting the excited-state absorption mechanism (ES ...
Weinheim2023Symmetry-Induced Singlet-Triplet Inversions in Non-Alternant Hydrocarbons
Marc Hamilton Folkmann Garner, Anne-Clémence Corminboeuf, Jacob Terence Blaskovits
Molecules with inversion of the singlet and triplet excited-state energies are highly promising for the development of organic light-emitting diodes (OLEDs). To date, azaphenalenes are the only class of molecules where these inversions have been identified ...
2023Selectively Exciting and Probing Radiative Plasmon Modes on Short Gold Nanorods by Scanning Tunneling Microscope-Induced Light Emission
Olivier Martin, Andreas Stemmer, Yalan Ma
We study the plasmon modes of gold nanorods (as short as similar to 100 nm) on a nonmetallic conductive substrate using scanning tunneling microscope-induced light emission (STM-LE) with a nonplasmonic tungsten tip at room temperature in high vacuum (10-7 ...
AMER CHEMICAL SOC2023Double-bond delocalization in non-alternant hydrocarbons induces inverted singlet-triplet gaps
Marc Hamilton Folkmann Garner, Jacob Terence Blaskovits
Molecules where the first excited singlet state is lower in energy than the first excited triplet state have the potential to revolutionize OLEDs. This inverted singlet-triplet gap violates Hund's rule and currently there are only a few molecules which are ...
ROYAL SOC CHEMISTRY2023Double-bond delocalization in non-alternant hydrocarbons induces inverted singlet-triplet gaps
Marc Hamilton Folkmann Garner, Jacob Terence Blaskovits
Molecules where the first excited singlet state is lower in energy than the first excited triplet state have the potential to revolutionize OLEDs. This inverted singlet-triplet gap violates Hund's rule and currently there are only a few molecules which are ...
ROYAL SOC CHEMISTRY2023Photochemical oxidation of phenols and anilines mediated by phenoxyl radicals in aqueous solution
Urs von Gunten, Silvio Canonica, Stephanie Christa Remke
Reactive intermediates formed upon irradiation of chromophoric dissolved organic matter (CDOM) contribute to the degradation of various organic contaminants in surface waters. Besides well-studied "short-lived" photo oxidants, such as triplet state CDOM (3 ...
PERGAMON-ELSEVIER SCIENCE LTD2022Donor-Acceptor-Donor "Hot Exciton" Triads for High Reverse Intersystem Crossing in OLEDs
Sergio Vela Llausi, Maria Fumanal Quintana, Yanan Zhu
Hot exciton materials have the potential to improve the quantum efficiency of organic light-emitting diodes (OLEDs) by promoting high reversed intersystem crossing (hRISC) between a high-lying triplet (T-n, n >= 2) and a radiative singlet (S-m). In recent ...
WILEY-V C H VERLAG GMBH2022Two-Carbon Ring Expansion of Cyclobutanols to Cyclohexenones Enabled by Indole Radical Cation Intermediate: Development and Application to a Total Synthesis of Uleine
Qian Wang, Jieping Zhu, Alexandre Julien Florent Leclair
A single-electron transfer (SET) oxidation of indole or benzo[b]thiophene to a radical cation reverses the intrinsic polarity of these pi-excessive bicyclic heteroarenes. Here we report an oxidative two-carbon homologation of cyclobutanols to cyclohexenone ...
AMER CHEMICAL SOC2022Delineating Conformation Control in the Photophysical Behaviour of a Molecular Donor-Acceptor-Donor Triad
Mechanochromic luminescent materials, exhibiting a change in luminescence behavior under external stimuli have emerged as one of the promising candidates for upcoming efficient OLEDs. Recently mechanochromic luminescence was reported in a donor-acceptor-do ...
WILEY-V C H VERLAG GMBH2021