The Radiative Lifetime in Near-IR-Luminescent Ytterbium Cryptates: The Key to Extremely High Quantum Yields

2015 ◽  
Vol 54 (33) ◽  
pp. 9719-9721 ◽  
Author(s):  
Christine Doffek ◽  
Michael Seitz
Keyword(s):  
Radiative Lifetime ◽  
Quantum Yields ◽  
High Quantum ◽  
Near Ir

Highly efficient orange-red electroluminescence of iridium complexes with good electron mobility

2017 ◽  
Vol 5 (32) ◽  
pp. 8150-8159 ◽  
Author(s):  
Hua-Bo Han ◽  
Rong-Zhen Cui ◽  
Yi-Ming Jing ◽  
Guang-Zhao Lu ◽  
You-Xuan Zheng ◽  
...  
Keyword(s):  
Current Efficiency ◽  
Electron Mobility ◽  
Quantum Yields ◽  
Iridium Complexes ◽  
Maximum Luminance ◽  
High Quantum ◽  
Highly Efficient ◽  
Maximum Current ◽  
Low Efficiency

Two orange-red iridium complexes with high quantum yields and good electron mobility were applied in efficient OLEDs showing a maximum luminance of 129 466 cd m−2, a maximum current efficiency of 62.96 cd A−1 with low efficiency roll-off.

scholarly journals Rapid pseudo five-component synthesis of intensively blue luminescent 2,5-di(hetero)arylfurans via a Sonogashira–Glaser cyclization sequence

2014 ◽  
Vol 10 ◽  
pp. 672-679 ◽  
Author(s):  
Fabian Klukas ◽  
Alexander Grunwald ◽  
Franziska Menschel ◽  
Thomas J J Müller
Keyword(s):  
Natural Products ◽  
Electronic Structure ◽  
Biologically Active ◽  
Blue Luminescence ◽  
Quantum Yields ◽  
One Pot ◽  
Dft Computations ◽  
High Quantum ◽  
Bright Blue ◽  
Coupling Sequence

2,5-Di(hetero)arylfurans are readily accessible in a pseudo five-component reaction via a Sonogashira–Glaser coupling sequence followed by a superbase-mediated (KOH/DMSO) cyclization in a consecutive one-pot fashion. Besides the straightforward synthesis of natural products and biologically active molecules all representatives are particularly interesting due to their bright blue luminescence with remarkably high quantum yields. The electronic structure of the title compounds is additionally studied with DFT computations.

Singlet oxygen generation of subphthalocyanine-fused dimer and trimer

2020 ◽  
Vol 24 (01n03) ◽  
pp. 211-219
Author(s):  
Rei Fujishiro ◽  
Hayato Sonoyama ◽  
Yuki Ide ◽  
Takuya Fujimura ◽  
Ryo Sasai ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Quantum Yields ◽  
Absorption Bands ◽  
Low Light ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Near Ir ◽  
Interesting Class ◽  
High Fluorescence ◽  
Significant Wavelength

Subphthalocyanine (SubPc) macrocycles are known as an interesting class of nonplanar aromatic dyes. Despite documented high fluorescence and singlet oxygen quantum yields, the properties of SubPcs in photodynamic therapy (PDT) are underestimated, because their absorption bands do not reach a significant wavelength range. With this in mind, we combined a SubPc ring and a SubPc ring by introducing a common benzene ring and obtained a SubPc dimer (2) and trimer (3) with the Q-band at the near-IR region, owing to the expansion of the [Formula: see text] electron conjugated system. In this study, we reported 1O2 generation abilities of 2 and 3based on the applied absolute singlet oxygen quantum yields ([Formula: see text]absolute). Subsequent research revealed that 2 and 3 showed the potential to generate 1O2 to not only in toluene but also in DMSO. Although the photocytotoxicity of 2 and 3 were investigated upon photo-irradiation with a low light dose of approximately 1.5 J/cm2, 2 and 3 showed almost negligible toxic properties toward HEp2 cells.

Efficient red luminogen with aggregation-induced emission for in vivo three-photon brain vascular imaging

2020 ◽  
Vol 4 (6) ◽  
pp. 1634-1642 ◽  
Author(s):  
Haiyan Tian ◽  
Dongyu Li ◽  
Xi Tang ◽  
Yubo Zhang ◽  
Zhiyong Yang ◽  
...  
Keyword(s):  
High Resolution ◽  
Penetration Depth ◽  
Vascular Imaging ◽  
Quantum Yields ◽  
High Signal ◽  
Aggregation Induced Emission ◽  
Background Ratio ◽  
High Quantum

DCPE-TPA exhibits three morphologies with high quantum yields and nanoparticles of DCPE-TPA are utilized for in vivo 3PF imaging, achieving a penetration depth of 300 μm with a high resolution of 1.8 μm and a high signal-to-background ratio of 14.

Green and Orange Emissive Carbon Dots with High Quantum Yields Dispersed in Matrices for Phosphor-Based White LEDs

2020 ◽  
Vol 8 (8) ◽  
pp. 3151-3161 ◽  
Author(s):  
Panpan Ma ◽  
Xiaobo Sun ◽  
Wei Pan ◽  
Guifeng Yu ◽  
Jinping Wang
Keyword(s):  
Carbon Dots ◽  
Quantum Yields ◽  
White Leds ◽  
High Quantum

Electronically Coupled Gold Nanoclusters Render Deep-Red Emission with High Quantum Yields

2020 ◽  
Vol 11 (21) ◽  
pp. 9344-9350
Author(s):  
Hsiu-Ying Huang ◽  
Kun-Bin Ca ◽  
Chong-Cho Io ◽  
Po-Wen Chen ◽  
Ruth Jeane Soebroto ◽  
...  
Keyword(s):  
Gold Nanoclusters ◽  
Quantum Yields ◽  
Red Emission ◽  
High Quantum

scholarly journals High binding ability ligand controlled formation of CsPbX3 (X = Cl/Br, Br, I) perovskite nanocrystals with high quantum yields and enhanced stability

RSC Advances ◽  
2018 ◽  
Vol 8 (63) ◽  
pp. 35973-35980 ◽  
Author(s):  
Hongbo Xia ◽  
Suli Wu ◽  
Lu Li ◽  
Shufen Zhang
Keyword(s):  
Quantum Yields ◽  
Binding Ability ◽  
Perovskite Nanocrystals ◽  
High Quantum ◽  
High Binding ◽  
Enhanced Stability

CsPbX3 NCs with both high photoluminescence quantum yields (PLQYs) and enhanced stability have been obtained by using high binding ability ligands.

Bright CuInS2/CdS nanocrystal phosphors for high-gain full-spectrum luminescent solar concentrators

2015 ◽  
Vol 51 (44) ◽  
pp. 9129-9132 ◽  
Author(s):  
Kathryn E. Knowles ◽  
Troy B. Kilburn ◽  
Dane G. Alzate ◽  
Stephen McDowall ◽  
Daniel R. Gamelin
Keyword(s):  
High Gain ◽  
Quantum Yields ◽  
Full Spectrum ◽  
Solar Concentrators ◽  
Solar Absorption ◽  
Cds Nanocrystals ◽  
High Quantum ◽  
Luminescent Solar Concentrators ◽  
Computational Analyses

Experimental and computational analyses demonstrate that CuInS2/CdS nanocrystals with large solar absorption, high quantum yields, and only moderate luminescence reabsorption excel as phosphors for full-spectrum luminescent solar concentrators.

Room-Temperature Synthesis of Air-Stable and Size-Tunable Luminescent ZnS-Coated Cd3P2 Nanocrystals with High Quantum Yields

2011 ◽  
Vol 124 (3) ◽  
pp. 762-765 ◽  
Author(s):  
Wilfried-Solo Ojo ◽  
Shu Xu ◽  
Fabien Delpech ◽  
Céline Nayral ◽  
Bruno Chaudret
Keyword(s):  
Room Temperature ◽  
Quantum Yields ◽  
Temperature Synthesis ◽  
Room Temperature Synthesis ◽  
High Quantum
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