Results 131 to 140 of about 1,915,191 (239)

Excited state dynamics of intramolecular charge transfer excited state in thermally activated delayed fluorescence carbazole dendrimer [PDF]

Organic light-emitting diodes (OLEDs) using dendrimers as emitting layers are gathering attention due to their ability of precise molecular structuring.
Tomohiro, Ogawa, Ami, Takada, Ken, Albrecht, Eri, Hisamura, Ken, Onda, Keiko, Yamaoka, Kiyoshi, Miyata   +6 more
core   +2 more sources

Research advances in metal halides for flexible indirect X‐ray imaging

FlexMat, EarlyView.
This review focuses on the preparation of flexible scintillators and provides an in‐depth discussion of the preparation methods and optimization of flexible films and flexible amorphous materials for MHs X‐ray indirect detectors. The content covers characterization methods for flexible materials, the selection of flexible substrates, optimization ...
Tianyu Xie, Youkui Xu, Dexue Liu, Zhiwen Jin   +3 more
wiley   +1 more source

Light‐Driven CO ₂ Reduction Catalysis with Organic Thermally Activated Delayed Fluorescence (TADF) Sensitizers

ChemCatChem
Abstract Catalytic conversion of CO 2 into carbon‐based products (CO 2 reduction reaction, CO 2 RR) using light can be profitably achieved through the merging of a molecular catalyst based on ...
Federico Droghetti, Andrea Mantovani, Mirco Natali   +2 more
openaire   +1 more source

Pyridine‐dicarbonitriles acceptor engineering in multi‐resonance thermally activated delayed fluorescence with hybridized short‐ and long‐range charge transfer for high‐performance electroluminescence

FlexMat, EarlyView.
Pyridine‐dicarbonitrile units integrated into a multiple‐resonance core engineer the excited state through cooperative short‐range charge transfer (SRCT) and long‐range charge transfer (LRCT), thereby enhancing the spin‐flipping process. Abstract Multi‐resonance (MR) thermally activated delayed fluorescence (TADF) materials exhibit narrowband emission ...
Jing Sun, Zezhu Xiao, Wei Li, Songqian Ni, Haorun Dai, Xiangyun Wang, Jiasen Zhang, Weiguo Zhu, Ziyi Ge, Xiugang Wu   +9 more
wiley   +1 more source

Hyperfluorescence circularly polarized OLEDs consisting of chiral TADF sensitizers and achiral multi-resonance emitters

Nature Communications
Developing circularly polarized organic light-emitting diodes (CP-OLEDs) that simultaneously achieve narrow-spectrum emission and high electroluminescence (EL) efficiency remains a formidable challenge.
Letian Chen, Peng Zou, Jinke Chen, Letian Xu, Ben Zhong Tang, Zujin Zhao   +5 more
doaj   +1 more source

Structural and Spin–Orbit Coupling Synergy Enables Tunable Afterglow in Cytosine‐Based Hybrid Materials

Laser &Photonics Reviews, EarlyView.
Zero‐dimensional organic–inorganic hybrid materials (Cyt)2ZnX4·H2O (X = Cl, Br) were synthesized using cytosine (Cyt) and zinc halides, enabling effective regulation of room‐temperature phosphorescence (RTP) through halogen substitution in the inorganic [ZnX4]2− unit.
Chenxin Fan, Zhe Tang, Binbin Fan, Qingfeng Wei, Dandan Luo, Tianxin Bai, Junsheng Chen   +6 more
wiley   +1 more source

Molecular design of efficient yellow- to red-emissive alkynylgold(iii) complexes for the realization of thermally activated delayed fluorescence (TADF) and their applications in solution-processed organic light-emitting devices. [PDF]

Chem Sci, 2021
Au-Yeung CC, Li LK, Tang MC, Lai SL, Cheung WL, Ng M, Chan MY, Yam VW.   +7 more
europepmc   +1 more source

Carbonized polymer dots with aqueous‐stable room‐temperature phosphorescence: Mechanism, matrix engineering, and application

Responsive Materials, EarlyView.
This review focuses on inorganic and organic matrices that enable aqueous‐stable room‐temperature phosphorescence (RTP) in carbonized polymer dots (CPDs). It explains the underlying RTP mechanisms, highlights how matrix engineering provides spatial confinement and bonding interactions to stabilize triplet excitons in water, and demonstrates key ...
Yuhan Hou, Chengyu Zheng, Songyuan Tao, Yuzhuo Wang, Bai Yang   +4 more
wiley   +1 more source

Experimental investigation of exciton dynamics of thermally activated delayed fluorescence material exhibiting mono-exponential transient PL decay with sub-microsecond lifetime in solution

Applied Physics Express
DMAc-sFL-PN is a reported emitter exhibiting an ultrashort emission lifetime via the triplet state with high oxygen sensitivity in toluene, explained by a direct singlet-harvesting mechanism.
Shoma Sasaki, Wen-Hao Zhang, Youichi Tsuchiya, Debasish Barman, Chih-Hsin Chen, Chihaya Adachi   +5 more
doaj   +1 more source

Dual room‐temperature phosphorescence derived from the reversible homolysis in the high proportion n‐electron organic crystal

Smart Molecules, EarlyView.
[2,2′‐biisoindoline]‐1,1′,3,3′‐tetraone (4A2B) crystal with high n‐electrons undergoes photo‐induced reversible homolysis resulting in two room‐temperature phosphorescence (RTP). One of the 4A2B molecules responds strongly to 250 nm via fast intersystem crossing (ISC) processes among high‐lying excited states.
Junxiang Huang, Dongqian Wang, Dongping Wang, Qichao Yao, Xingyu Huangfu, Guian Yang, Saran Long, Jianjun Du, Jiangli Fan, Xiaojun Peng   +9 more
wiley   +1 more source