Results 51 to 60 of about 41,460 (311)
Advanced Functional Materials, EarlyView.Materials exist that are useful for gamma scintillation, radiation shielding, neutron‐gamma pulse shape discrimination (PSD), thermal neutron detection, or high refractive index applications. While certain materials have exhibited optimal performance for each of these applications, none achieve multiple functions.
Isabelle Winardi +13 more
wiley +1 more source
A novel diethyl 2-(9-fluorenyl) malonate functionlized SBA-15 for selective optical sensing of Iron [PDF]
Journal of Nanostructures, 2019 In this study, highly ordered mesoporous silica material (SBA-15) functionalized with Diethyl 2 - (9 -fluorenyl) malonate as a flourophore is reported.
Alireza Badiei +2 more
doaj +1 more source
Two\u27s Company, Three\u27s a Crowd: Exciton Localization in Cofacially Arrayed Polyfluorenes [PDF]
, 2016 Understanding the mechanisms of long-range energy transfer through polychromophoric assemblies is critically important in photovoltaics and biochemical systems.
Ivanov, Maxim Vadimovich +3 more
core +1 more source
Temperature dependent photoluminescence of organic semiconductors with varying backbone conformation [PDF]
, 2002 We present photoluminescence studies as a function of temperature from a series of conjugated polymers and a conjugated molecule with distinctly different backbone conformations.
Chandrasekhar, H. R. +8 more
core +2 more sources
Advanced Materials, EarlyView.Fluorene‐functionalized spiro‐phenothiazine (PTZ‐Fl) exhibits strong Li+ affinity and thermal stability, enabling a PCE of 25.75% in small‐area cells and 22.07% in 25 cm2 modules. Under ISOS‐L3 conditions, PTZ‐Flbased devices retain over 80% efficiency after 1000 hours, demonstrating superior stability and scalability compared to spiro‐OMeTAD for next ...
Javier Urieta‐Mora +17 more
wiley +1 more source
Mechanism of the Photodecomposition of Stable Triarylmethyl Radicals
Angewandte Chemie, EarlyView.Photolysis of luminescent chlorinated trityl radicals was studied with density functional theory and the decomposition products were isolated and characterized. It proceeds by a 5‐electron electrocyclization then a 1,8‐sigmatropic chloride shift, forming non‐emissive, less stable fluorenyl radicals.
Hannah E. Hackney +3 more
wiley +2 more sources
International Journal of Electrochemical Science, 2018 Four copolymers, poly(fluorene-pyrido[3,4-b]pyrazine) (PFPP), poly(benzotriazole-fluorene-pyrido[3,4-b]pyrazine) (PBTFPP), poly(benzotriazole-fluorene-benzothiadiazole) (PBTFBD), poly(benzothiadiazole-fluorene-benzothiadiazole) (PBDFBD)were synthesized ...
Shuang Chen +4 more
doaj +1 more source
Fragmentation Dynamics of Fluorene Explored Using Ultrafast XUV-Vis Pump-Probe Spectroscopy
Frontiers in Physics, 2022 We report on the use of extreme ultraviolet (XUV, 30.3 nm) radiation from the Free-electron LASer in Hamburg (FLASH) and visible (Vis, 405 nm) photons from an optical laser to investigate the relaxation and fragmentation dynamics of fluorene ions.
D. Garg +61 more
doaj +1 more source
2,7-Dichloro-4-(chloroacetyl)fluorene [PDF]
Acta Crystallographica Section E Structure Reports Online, 2009 There are two mol-ecules in the asymmetric unit of the title compound, C(15)H(9)Cl(3)O. The fluorene rings of the two mol-ecules are both coplanar within 066 (3) Å. In the crystal, C-H⋯O and C-H⋯Cl hydrogen bonds link the mol-ecules into sheets running parallel to (100).
Jian-Bo Chu, Guo-Wu Rao, Jin-Hao Zhao
openaire +3 more sources
Nanoparticle-doped electrospun fiber random lasers with spatially extended light modes [PDF]
, 2017 Complex assemblies of light-emitting polymer nanofibers with molecular materials exhibiting optical gain can lead to important advance to amorphous photonics and to random laser science and devices.
Camposeo, Andrea +8 more
core +2 more sources