A5071058215- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Luminescence and Fluorescent Materials
- Organic Light-Emitting Diodes Research
- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Synthesis and characterization of novel inorganic/organometallic compounds
- Boron Compounds in Chemistry
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Advanced NMR Techniques and Applications
- Synthesis and Properties of Aromatic Compounds
- Radical Photochemical Reactions
- Photochemistry and Electron Transfer Studies
- Lanthanide and Transition Metal Complexes
- Image and Video Quality Assessment
- Photodynamic Therapy Research Studies
- Molecular Junctions and Nanostructures
- Photoreceptor and optogenetics research
- Electron Spin Resonance Studies
- Photonic and Optical Devices
- Analytical Chemistry and Sensors
- Nanoplatforms for cancer theranostics
- Axial and Atropisomeric Chirality Synthesis
- Photochromic and Fluorescence Chemistry
National Taiwan University
2022-2025
In this study, we designed and synthesized three series of blue emitting homoleptic iridium(III) phosphors bearing 4-cyano-3-methyl-1-phenyl-6-(trifluoromethyl)-benzo[d]imidazol-2-ylidene (mfcp), 5-cyano-1-methyl-3-phenyl-6-(trifluoromethyl)-benzo[d]imidazol-2-ylidene (ofcp), 1-(3-(tert-butyl)phenyl)-6-cyano-3-methyl-4-(trifluoromethyl)-benzo[d]imidazol-2-ylidene (5-mfcp) cyclometalates, respectively. These iridium complexes exhibit intense phosphorescence in the high energy region 435-513...
We studied a family of coordination compounds with short intramolecular spatial separation between an organic chromophore and metal centre. The specific geometry was realized by means anthracene‐functionalized tertiary aryl phosphanes. Their silver gold complexes (1, 2) operate as conventional fluorophores, photophysical behavior defined anthracene‐localized allowed transitions. In contrast, bichromophoric species, containing phenyl bipyridine‐ (3, 5, 6, 8) or terpyridine‐ (4, 7) derived...
It is always important and fascinating to explore new organic emitters that exploit unconventional pathways unveil their emission with unique properties, such as thermally activated delayed fluorescence (TADF). In this study, we report the rarely explored sulfur lone pair (n) a promising alternative, where correlated π* → n can be used attain strong TADF thus practical OLEDs. The designed strategy incorporates several key concepts (Figure 1a), in which persulfide aromatic spirocycle enhances...
We studied a family of coordination compounds with short intramolecular spatial separation between an organic chromophore and metal centre. The specific geometry was realized by means anthracene‐functionalized tertiary aryl phosphanes. Their silver gold complexes (1, 2) operate as conventional fluorophores, photophysical behavior defined anthracene‐localized allowed transitions. In contrast, bichromophoric species, containing phenyl bipyridine‐ (3, 5, 6, 8) or terpyridine‐ (4, 7) derived...
Singlet fission (SF) holds great promise for current photovoltaic technologies, where tetracenes, with their relatively high triplet energies, play a major role application in silicon-based solar cells. However, the SF efficiencies tetracene dimers are low due to unfavorable energetics of singlet and energy levels. In solid state, exhibits yields formation through SF, raising interest about underlying mechanisms. To address this discrepancy, we designed prepared novel molecular system based...
Judicious strategy to envision fine-tuning of intramolecular charge transfer (ICT) and spin-orbit coupling (SOC) features for the advances AIE-active Type-I photosensitizers (PSs) image-guided photodynamic therapy (PDT).
Two new 2,3-dicyanopyrazinophenanthrene-based acceptors (A) p-QCN and m-QCN were synthesized to blend with a donor (D) CPTBF for the exciplex formation. The energy levels of are modulated by peripheral substituents 4- 3-benzonitrile, respectively. Exciplex-forming blends identified observation red-shifted emissions from various D : A higher ratios suppressing aggregation acceptor. two-component relaxation processes observed time-resolved photoluminescence support thermally activated delayed...
The excited-state solvent-catalysed proton transfer of PyrQs requires a relay ≧3 methanol molecules, where the N(8) proton-accepting site is rate-determining step for intrinsic tunnelling k pt .
Abstract Singlet fission (SF) holds great promise for current photovoltaic technologies, where tetracenes, with their relatively high triplet energies, play a major role application in silicon‐based solar cells. However, the SF efficiencies tetracene dimers are low due to unfavorable energetics of singlet and energy levels. In solid state, exhibits yields formation through SF, raising interest about underlying mechanisms. To address this discrepancy, we designed prepared novel molecular...
Abstract The new host materials are reported to boost the multiple resonance‐induced thermally activated delayed fluorescence (MR‐TADF) based pure deep‐blue organic light emitting diodes (OLEDs) toward further shortening emission full width at half maximum (FWHM). Based on an unusual asymmetric design concept, two compounds Bz2cb and Bz2cbz synthesized. Despite possessing a compact rigid molecular packing in crystal, shows amorphous morphology via vapor deposition, as confirmed by...
14,14'-Bidibenzo[a,j]anthracenes (BDBAs) were prepared by iridium-catalyzed annulation of 5,5'-biterphenylene with alkynes. The molecular geometries overcrowded BDBAs verified X-ray crystallography. two dibenzo[a,j]anthryl moieties are connected through the sterically hindered 14 positions, resulting in highly distorted halves. conformation a small twist angle between halves can minimize steric conflicts substituents at 1 and 13 positions carbon atoms central axis, as well clashes those...
We designed and synthesized indanone derivatives with ESIPT, correlated to H-bond strength. Compound 4 shows mechanically induced ESIPT for the first time, –CF 3 –HN– interactions crucial non-centrosymmetric crystal packing.
Abstract A new series of biaryls, bi‐linear‐terphenylenes (BLTPs), were prepared using the tert ‐butyllithium‐mediated cyclization as key synthetic step. The three‐dimensional structures studied compounds verified X‐ray crystallography and DFT calculations. Tetraaryl(ethynyl)‐substituted BLTPs are highly crowded molecules, internal rotation around central C−C bond is restricted due to a high barrier (>50 kcal/mol). These contain several aryl/terphenylenyl/aryl sandwiches, where...