Self-assembled quantum dots–polyhedral oligomeric silsesquioxane nanohybrids with enhanced photoluminescence

2012 ◽  
Vol 66 (9) ◽  
pp. 646-649 ◽  
Author(s):  
Qi Li ◽  
Lijie Dong ◽  
Xiang Wang ◽  
Jing Huang ◽  
Haian Xie ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Polyhedral Oligomeric Silsesquioxane ◽  
Enhanced Photoluminescence ◽  
Self Assembled ◽  
Oligomeric Silsesquioxane

Enhanced Photoluminescence Properties of Polyhedral Oligomeric Silsesquioxane-Based Hybrid Phosphors for Anti-Counterfeiting and Flexible Composite Applications

2021 ◽  
Vol 13 (5) ◽  
pp. 748-754
Author(s):  
Jae Yong Jung ◽  
Soung Soo Yi
Keyword(s):  
Thin Films ◽  
Colloidal Solution ◽  
Uv Light ◽  
Polyhedral Oligomeric Silsesquioxane ◽  
Photoluminescence Properties ◽  
Enhanced Photoluminescence ◽  
Pyridinedicarboxylic Acid ◽  
Hybrid Complex ◽  
Plastic Card ◽  
Oligomeric Silsesquioxane

We have described a novel organic-inorganic hybrid polyhedral oligomeric silsesquioxane (POSS) type monomer ligand 2,6-pyridinediamine-bis-propanylheptaisobutyl POSS (PDC-POSS) and synthesized it using rare-earth (RE = Eu3+, Tb3+) doped hybrid complex PDC-POSS phosphors. The PDC-POSS precursor was prepared by (3-aminopropyl) heptaisobutyl POSS, 2,6-pyridinedicarboxylic acid chloride (PDC), and then coordinated with RE3+ using europium and terbium nitrate regents to yield PDC-POSS:RE3+ phosphors. Under UV light (A = 285 nm) excitation, photoluminescence (PL) spectra of Eu3+-doped PDC-POSS were detected at 591, 615, 650, and 693 and those of Tb3+-doped PDC-POSS were monitored at 488, 544, 584, 619, and 647 nm. The thin films with good transmittance were deposited from aqueous colloidal solution of hybrid phosphors on bank notes, plastic card substrates, and cotton fibers to demonstrate the transparency of phosphor thin films, which are feasible for use in anti-counterfeiting applications, which require concealment and identification by the naked eye. In addition, a polymer composite with good flexibility that can be applied to LED chips and display was produced. Finally, it was suggested that PDC-POSS:RE3+ phosphors can be used in various applications.

Polyhedral Oligomeric Silsesquioxane as a Ligand for CdSe Quantum Dots

2013 ◽  
Vol 117 (4) ◽  
pp. 1857-1862 ◽  
Author(s):  
Yu Wang ◽  
Aleksandar Vaneski ◽  
Haihua Yang ◽  
Shuchi Gupta ◽  
Frederik Hetsch ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Polyhedral Oligomeric Silsesquioxane ◽  
Cdse Quantum Dots ◽  
Oligomeric Silsesquioxane

Enhanced Photoluminescence Properties from Self-Assembled InAs Surface Quantum Dots by Antimony Incorporation

2010 ◽  
Author(s):  
C. H. Chiang ◽  
Y. H. Wu ◽  
M. C. Hsieh ◽  
C. H. Yang ◽  
J. F. Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Photoluminescence Properties ◽  
Enhanced Photoluminescence ◽  
Self Assembled

Structural complexity induced by topology change in hybrids consisting of hexa-peri-hexabenzocoronene and polyhedral oligomeric silsesquioxane

2017 ◽  
Vol 53 (62) ◽  
pp. 8679-8682 ◽  
Author(s):  
Meng-Yao Zhang ◽  
Sheng Zhou ◽  
Hong-Bing Pan ◽  
Jing Ping ◽  
Wei Zhang ◽  
...  
Keyword(s):  
Polyhedral Oligomeric Silsesquioxane ◽  
Structural Complexity ◽  
Topology Change ◽  
New Approach ◽  
Design And Synthesis ◽  
Self Assembled ◽  
Oligomeric Silsesquioxane ◽  
Synthesis Of Materials

Increasing POSS content (or changing topology) of organic–inorganic hybrids with HBC and POSS results in more complex self-assembled structures. This work provides a new approach for the design and synthesis of materials with sub-10 nm sizes.

POSS-tethered fluorinated diblock copolymers with linear- and star-shaped topologies: synthesis, self-assembled films and hydrophobic applications

RSC Advances ◽  
2015 ◽  
Vol 5 (68) ◽  
pp. 55048-55058 ◽  
Author(s):  
Aizhao Pan ◽  
Shao Yang ◽  
Ling He
Keyword(s):  
Diblock Copolymers ◽  
Polyhedral Oligomeric Silsesquioxane ◽  
Self Assembled ◽  
Oligomeric Silsesquioxane

Polyhedral oligomeric silsesquioxane (POSS) tethered fluorinated diblock copolymers are synthesized using octakis(dibromoethyl)POSS and aminopropylisobutyl POSS initiation of methylmethacrylate and dodecafluoroheptylmethacrylate.

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