Ultrastable g-C3N4 assemblies with high quantum yield and reversible photoluminescence

2018 ◽  
Vol 54 (96) ◽  
pp. 13519-13522 ◽  
Author(s):  
Zhixiang Jiang ◽  
Xiao Zhang ◽  
Junpeng Wang ◽  
Ling Chen ◽  
Hsueh-Shih Chen ◽  
...  
Keyword(s):  
Quantum Yield ◽  
High Stability ◽  
Quantum Yields ◽  
High Quantum Yield ◽  
High Quantum ◽  
First Time

Ultrastable g-C3N4 assemblies consisting of amorphous/crystalline nanosheets with high quantum yields up to 78% were prepared for the first time. A reversible photoluminescence was observed from green to blue once the pH was adjusted. These assemblies exhibit high stability in PL devices.

Tunable RGB luminescence of a single molecule with high quantum yields through a rational design

2016 ◽  
Vol 4 (7) ◽  
pp. 1527-1532 ◽  
Author(s):  
Wen Li ◽  
Yu-Mo Zhang ◽  
Ting Zhang ◽  
Weiran Zhang ◽  
Minjie Li ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Single Molecule ◽  
Rational Design ◽  
Quantum Yields ◽  
High Quantum Yield ◽  
Fluorescent Switch ◽  
High Quantum

An organic single-molecule RGB luminescence material with a high quantum yield was realized by introducing the ESIPT and TBET mechanisms and combining an AIEE luminophore with a fluorescent switch.

scholarly journals Distinctive Optical Transitions of Tunable Multicolor Carbon Dots

2022 ◽  
Author(s):  
Hyeong Seop Shim ◽  
Jun Myung Kim ◽  
Seonghyun Jeong ◽  
Youngwon Ju ◽  
Sung Jae Won ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Electronic Structures ◽  
Carbon Dots ◽  
High Stability ◽  
Optical Transitions ◽  
High Quantum Yield ◽  
High Quantum ◽  
Low Toxicity

Three types of carbon dots (CDs) are synthesized from isomers of phenylenediamine to develop multicolor nanomaterials with low toxicity, high stability, and high quantum yield. The distinctive electronic structures of...

Ultrastable green fluorescence carbon dots with a high quantum yield for bioimaging and use as theranostic carriers

2015 ◽  
Vol 3 (22) ◽  
pp. 4577-4584 ◽  
Author(s):  
Chuanxu Yang ◽  
Rasmus Peter Thomsen ◽  
Ryosuke Ogaki ◽  
Jørgen Kjems ◽  
Boon M. Teo
Keyword(s):  
Quantum Yield ◽  
Carbon Dots ◽  
High Quantum Yield ◽  
Green Fluorescence ◽  
Heating Method ◽  
High Quantum ◽  
Doxorubicin Delivery ◽  
First Time

Green luminescent carbon dots with a high quantum yield and superior stability over a range of pH are synthesised for the first time via a new heating method. The carbon dots can be assembled into defined nanocomplexes as theranostic carriers for doxorubicin delivery.

scholarly journals Improved photodecarboxylation properties in zinc photocages constructed using m-nitrophenylacetic acid variants

2021 ◽  
Author(s):  
Austin Shigemoto ◽  
Avik Bhattacharjee ◽  
Erin Hickey ◽  
Hallee Boyd ◽  
Theresa McCormick ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Quantum Yield ◽  
Photophysical Properties ◽  
Quantum Yields ◽  
Biological Applications ◽  
High Quantum Yield ◽  
High Quantum ◽  
Derivatives Of ◽  
Fluoro Derivatives

The methoxy- and fluoro-derivatives of meta-nitrophenylacetic acid (mNPA) chromophores undergo photodecarboxylation with comparable quantum yields to unsubstituted mNPA, but uncage at red-shifted excitation wavelengths. This observation prompted us to investigate DPAdeCageOMe (2-[bis(pyridin-2-ylmethyl)amino]-2-(4-methoxy-3-nitrophenyl)acetic acid) and DPAdeCageF (2-[bis(pyridin-2-ylmethyl)amino]-2-(4-fluoro-3-nitrophenyl)acetic acid) as Zn2+ photocages. DPAdeCageOMe has a high quantum yield and exhibits other photophysical properties comparable to XDPAdeCage ({bis[(2-pyridyl)methyl]amino}(9-oxo-2-xanthenyl) acetic acid), the best perforiming Zn2+ photocage reported to date. Since the synthesis of DPAdeCageOMe is more straightforward than XDPACage, the new photocage will be a highly competitive tool for biological applications.

High quantum yield and unusual photoluminescence behaviour in tetrahedral manganese(ii) based on hybrid compounds

2018 ◽  
Vol 5 (10) ◽  
pp. 2615-2619 ◽  
Author(s):  
Yan-Li Wei ◽  
Jing Jing ◽  
Chao Shi ◽  
Heng-Yun Ye ◽  
Zhong-Xia Wang ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Quantum Yields ◽  
Organic Cations ◽  
High Quantum Yield ◽  
Hybrid Compounds ◽  
High Quantum ◽  
Luminescence Characteristics

High quantum yields and unusual luminescence characteristics were successfully achieved by regulating the organic cations in tetrahedral manganese(ii) complexes.

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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