Results 41 to 50 of about 5,436 (176)

Immediate Organic Room‐Temperature Phosphorescence in Programmable Luminescent Tags Enabled by Oxygen‐Free Fabrication

Advanced Materials Technologies, EarlyView.
Programmable luminescent tags based on organic room‐temperature phosphorescence are shown to be governed by oxygen incorporation during fabrication. Oxygen‐free processing enables immediate phosphorescence activation, controlled thermal preconditioning, and tunable activation doses.
Lucy Winkler, Karl Sebastian Schellhammer, Sebastian Reineke   +2 more
wiley   +1 more source

Planar Chiral Carbazole‐Naphthalene Bisimide Hetero‐Cyclophane for Circularly Polarized Delayed Fluorescence

Angewandte Chemie, EarlyView.
Tightly stacked carbazole and 1,2:5,6–naphthalene bisimide units afforded a planar chiral hetero‐cyclophane. The architecturally refined system, with strong charge‐transfer interaction and enhanced structural rigidity, exhibits orange‐red delayed CPL emission in both solution and solid states.
Sanchari Debnath, Swadhin Garain, Yvonne Wagenhäuser, Frank Würthner   +3 more
wiley   +2 more sources

Lead‐Free Chiral Hybrid Metal Halides for Circularly Polarized Light‐Emitting Diodes

Advanced Optical Materials, EarlyView.
Lead‐free chiral hybrid metal halides provide a versatile platform for realizing chiroptical responses through chiral modulation of metal–halide frameworks with diverse dimensionalities, induces inversion‐symmetry breaking and enables dissymmetric excited‐state transitions toward efficient circularly polarized luminescence and electroluminescence. This
Kun Zhu, Li Wan
wiley   +1 more source

Stacking the Deck to Make Materials With Atypically Short Heterometallic d8 M(II)···Au(III) Bonds

Angewandte Chemie, EarlyView.
Tetracyanoplatinate(II) and tetracyanoaurate(III), through self‐assembly in the presence of KCl, crystallize from water to form a one‐dimensional chain featuring the first reported PtII···AuIII metallophilic interaction with a very short distance of ∼3.0 Å between the metal centers.
Leanna M. Karn, Samyadeb Mahato, Adlih Britton, Mojtaba Abbasi, Scott Kroeker, Tim Storr, Daniel B. Leznoff   +6 more
wiley   +2 more sources

Mechanical Stretch α‐Cyclodextrin Pseudopolyrotaxane Elastomer with Reversible Phosphorescence Behavior

Advanced Science
Polyethylene glycol chains in two terminals of the naphthalene functional group are threaded into α‐cyclodextrin cavities to form the pseudopolyrotaxane (NPR), which not only effectively induces the phosphorescence of the naphthalene functional group by ...
Yi Zhang, Yong Chen, Jian‐Qiu Li, Song‐En Liu, Yu Liu   +4 more
doaj   +1 more source

Temperature Correction in a Single Luminophore Pressure‐Sensitive Paint Using a Dual‐Emitting Gold Acridine Complex

Advanced Optical Materials, EarlyView.
The use of pressure‐sensitive luminescent molecules to quantify surface pressure in wind tunnel testing has revolutionized experimental aerodynamics. This work develops a dual‐emitting gold acridine complex for the simultaneous sensing of pressure and temperature independently of each other.
Alexander C. Brannan, Nguyen Le Phuoc, Mikko Linnolahti, Mark K. Quinn, Alexander S. Romanov, Elliott J. Nunn   +5 more
wiley   +1 more source

Energy Transfer‐Mediated Magnetoluminescence of an Octahedral MnII Complex Ligated With Bis(Diphenylphosphino)Methane Dioxide

Angewandte Chemie, EarlyView.
Energy‐transfer‐mediated magnetoluminescence of paramagnetic transition metal complexes: dope solids of an octahedral MnII complex into the corresponding ZnII complex exhibited a pronounced magnetic field response of emission spectra under the application of magnetic fields.
Asato Mizuno, Takuto Mibu, Ryota Matsuoka, Takema Hikawa, Shojiro Kimura, Tetsuro Kusamoto   +5 more
wiley   +2 more sources

Matrix‐free room‐temperature phosphorescence graphitic carbon nitride quantum dots based on halogen bond interactions for security applications

Nano Select, 2022
Herein, we first designed a one‐step strategy to achieve matrix‐free room temperature phosphorescence (RTP) materials by low temperature solid phase synthesis, using sodium citrate as carbon source and urea as nitrogen source.
Yuelin Kong, Yu He, Yaping Wang, Gongwu Song   +3 more
doaj   +1 more source

Benzo[b]Thiophene‐Derived Low‐T1 Multi‐Resonance Emitter with Suppressed Thermally Activated Delayed Fluorescence for Extending Organic Light‐Emitting Diode Lifetime by Managing Triplet‐Related Bimolecular Interactions

Advanced Optical Materials, EarlyView.
Introducing a 5‐phenylbenzo[b]thiophene unit into the DABNA core lowers the T1 level, enlarging the ΔEST to suppress TADF. This molecular design preserves narrow deep‐blue emission while drastically reducing triplet‐related degradation. Consequently, the resulting emitter, BN‐TPh‐TPA, delivers a threefold operational lifetime over the TADF‐active t ...
Jihun Hwang, Hakjun Lee, Hyunjun Jo, Jihwan Kim, Sunghoon Joo, Sunwoo Kang, Wan Pyo Hong, Taekyung Kim   +7 more
wiley   +1 more source

Force‐Induced Control of Circularly Polarized Luminescence With Rotaxane Architecture

Angewandte Chemie, EarlyView.
Force‐induced reversible on/off switching of circularly polarized luminescence is achieved with a rotaxane‐based supramolecular mechanophore. The mechanophore, featuring a chiral helicene luminophore, is incorporated as a first network cross‐linker into a double‐network organogel.
Keigo Nonaka, Takumi Kuroda, Kota Masuda, Toshiki Nishitani, Masaki Enokido, Makoto Tsurui, Yuichi Kitagawa, Yasuchika Hasegawa, Keiichi Noguchi, Koji Nakano, Yoshimitsu Sagara   +10 more
wiley   +2 more sources