Thermally prepared ultrabright adenosine monophosphate capped gold nanoclusters and the intrinsic mechanism

2017 ◽  
Vol 5 (19) ◽  
pp. 3550-3556 ◽  
Author(s):  
Jiao Liu ◽  
Hong-Wei Li ◽  
Wei-Xian Wang ◽  
Yuqing Wu
Keyword(s):  
Quantum Yield ◽  
Gold Nanoclusters ◽  
Cost Effective ◽  
Adenosine Monophosphate ◽  
High Quantum Yield ◽  
Reduction Procedure ◽  
High Quantum ◽  
Effective Manner ◽  
Intrinsic Mechanism ◽  
Citrate Reduction

AMP capped gold nanoclusters, AuNC@AMP, have been prepared in a fast and cost-effective manner by using the heating and citrate reduction procedure, and have been found to show a strong and stable luminescence emission at 480 nm with a high quantum yield (QY, 14.52%).

Hydrothermal synthesis of novel photosensitive gold and silver bimetallic nanoclusters protected by adenosine monophosphate (AMP)

2017 ◽  
Vol 5 (38) ◽  
pp. 9979-9985 ◽  
Author(s):  
Jiao Liu ◽  
Xin-Xin Yuan ◽  
Hong-Wei Li ◽  
Yuqing Wu
Keyword(s):  
Hydrothermal Synthesis ◽  
Quantum Yield ◽  
Synthesis Method ◽  
Adenosine Monophosphate ◽  
High Quantum Yield ◽  
High Quantum ◽  
Luminescence Emission ◽  
Bimetallic Nanoclusters ◽  
Strong Luminescence

AMP-capped gold and silver bimetal nanoclusters, Au–AgNCs@AMP, showing strong luminescence emission with a high quantum yield (QY = 8.46%) and novel photosensitivity, have been prepared using the hydrothermal synthesis method.

Facile Preparation of High-Quantum-Yield Gold Nanoclusters: Application to Probing Mercuric Ions and Biothiols

2014 ◽  
Vol 6 (21) ◽  
pp. 18824-18831 ◽  
Author(s):  
Heng-Chia Chang ◽  
Ying-Feng Chang ◽  
Nien-Chu Fan ◽  
Ja-an Annie Ho
Keyword(s):  
Quantum Yield ◽  
Gold Nanoclusters ◽  
High Quantum Yield ◽  
High Quantum ◽  
Mercuric Ions ◽  
Facile Preparation

scholarly journals Synthesis of N-Doped Micropore Carbon Quantum Dots with High Quantum Yield and Dual-Wavelength Photoluminescence Emission from Biomass for Cellular Imaging

Nanomaterials ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 495 ◽  
Author(s):  
Xin Ren ◽  
Fang Zhang ◽  
Bingpeng Guo ◽  
Na Gao ◽  
Xiaoling Zhang
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Cost Effective ◽  
Carbon Quantum Dots ◽  
Dual Wavelength ◽  
High Quantum Yield ◽  
High Quantum ◽  
Laser Ablation Method ◽  
Cost Effective Method ◽  
Pl Emission

Pursuit of a simple, fast, and cost-effective method to prepare highly and dual-wavelength fluorescent carbon quantum dots (CQDs) is a persistent objective in recent years. Here, we fabricated N-doped micropore carbon quantum dots (NM-CQDs) with a high quantum yield and dual-wavelength photoluminescence (PL) emission from sustainable biomass using a pulsed laser ablation method. Interestingly, two coexisting indigo–blue photoluminescence (PL) emissions were clearly observed, elucidating that the excited electrons transited from the intrinsic π* orbital to the surface state (SS) formed from the saturation passivation. The quantum yield (QY) and fluorescence lifetime (FL) of the obtained NM-CQDs were as high as 32.4% and 6.56 ns. Further investigations indicated that the emission behaviors of NM-CQDs were still stable and independent in various conditions such as various excitation wavelengths, salt ionic concentrations, pH values, irradiation times, and temperatures. The obtained NM-CQDs are very suitable for cellular staining images due to strong and stable PL emission and show good internalization in different cells. Therefore, we propose a new and cost-effective preparation strategy for highly fluorescent NM-CQDs with great potential in biomedical imaging and engineering.

Superior Stable and High Quantum Yield Phosphor Na2BaSr(PO4)2: Eu2+ for Plant Growth LEDs

2021 ◽  
Author(s):  
Jinmeng Xiang ◽  
Xiaoqi Zhao ◽  
Hao Suo ◽  
Minkun Jin ◽  
Xue Zhou ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Plant Growth ◽  
Light Emitting Diodes ◽  
Light Environment ◽  
High Quantum Yield ◽  
Light Emitting ◽  
Growth Rhythm ◽  
High Quantum ◽  
Violet Light ◽  
Important Means

Controlling the light environment of plant growth using phosphor-converted light-emitting diodes (pc-LEDs) is an important means to regulate the growth rhythm and enhance the yield, in which bluish violet light...

scholarly journals Heavily Eu2O3-doped yttria-aluminoborate glasses for red photoconversion with a high quantum yield: luminescence quenching and statistics of cluster formation

2014 ◽  
Vol 2 (41) ◽  
pp. 8678-8682 ◽  
Author(s):  
Guojun Gao ◽  
Jingxue Wei ◽  
Yang Shen ◽  
Mingying Peng ◽  
Lothar Wondraczek
Keyword(s):  
Quantum Yield ◽  
Doping Concentration ◽  
Statistical Approach ◽  
Cluster Formation ◽  
Luminescence Quenching ◽  
High Quantum Yield ◽  
Photoluminescence Quenching ◽  
High Quantum

We employ a statistical approach to estimate the number of photoluminescence quenching species as a function of doping concentration.

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