scholarly journals Organic photovoltaics based on self-assembled rosette nanotubes and stacked graphene

2019 ◽  
Author(s):  
Ehsan Keyvani-Someh
Keyword(s):  
Organic Photovoltaics ◽  
Rosette Nanotubes ◽  
Self Assembled

scholarly journals Scanning Tunneling Microscope Investigation of Self-Assembled Rosette Nanotubes on Highly Ordered Pyrolytic Graphite

2010 ◽  
Vol 16 (S2) ◽  
pp. 470-471 ◽  
Author(s):  
J-Y Cho ◽  
G Borzsonyi ◽  
H Fenniri
Keyword(s):  
Scanning Tunneling Microscope ◽  
Pyrolytic Graphite ◽  
Scanning Tunneling ◽  
Tunneling Microscope ◽  
Microscope Investigation ◽  
Rosette Nanotubes ◽  
Highly Ordered Pyrolytic Graphite ◽  
Self Assembled

Extended abstract of a paper presented at Microscopy and Microanalysis 2010 in Portland, Oregon, USA, August 1 – August 5, 2010.

scholarly journals One-Pot Nucleation, Growth, Morphogenesis, and Passivation of 1.4 nm Au Nanoparticles on Self-Assembled Rosette Nanotubes

2010 ◽  
Vol 132 (1) ◽  
pp. 32-33 ◽  
Author(s):  
Rahul Chhabra ◽  
Jesus G. Moralez ◽  
Jose Raez ◽  
Takeshi Yamazaki ◽  
Jae-Young Cho ◽  
...  
Keyword(s):  
Au Nanoparticles ◽  
One Pot ◽  
Rosette Nanotubes ◽  
Self Assembled ◽  
Nucleation Growth

Electroless Synthesis of 1.4 nm Pd and Pt Nanoparticles on Self-Assembled Rosette Nanotubes

2011 ◽  
Vol 1301 ◽  
Author(s):  
Rahul Chhabra ◽  
Hicham Fenniri
Keyword(s):  
Electron Microscopy ◽  
Photoelectron Spectroscopy ◽  
Pt Nanoparticles ◽  
Hierarchical Organization ◽  
X Ray ◽  
Force Microscopy ◽  
Rosette Nanotubes ◽  
Atomic Force ◽  
Transmission Electron ◽  
Self Assembled

ABSTRACTElectroless synthesis and hierarchical organization of 1.4 nm Pd and Pt nanoparticles (NPs) on self-assembled Rosette Nanotubes (RNTs) is described. The nucleated NPs are nearly monodisperse and reveal supramolecular organizations guided by RNT templates. Interestingly, the narrow size distribution is attributable to unique templating behavior of RNTs. The resulting metal NP-RNT composites were characterized by Atomic Force Microscopy (AFM), Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). X-ray Photoelectron Spectroscopy (XPS) was also performed to confirm the nature and composition of RNT-templated NPs.

Functionalized Rosette Nanotubes as Novel Electron Donor Materials for Solution-Processed Organic Photovoltaics

2015 ◽  
Vol 1737 ◽  
Author(s):  
Liang Shuai ◽  
Venkatakrishnan Parthasarathy ◽  
Jae-Young Cho ◽  
Takeshi Yamazaki ◽  
Rachel L. Beingessner ◽  
...  
Keyword(s):  
Electron Donor ◽  
Organic Photovoltaics ◽  
Energy Levels ◽  
Spectroscopic Techniques ◽  
Solution Processed ◽  
Rosette Nanotubes ◽  
Self Assembling ◽  
Hybrid Molecules ◽  
Homo And Lumo ◽  
Homo And Lumo Energy

ABSTRACTTwo self-assembling twin guanine-cytosine (G∧C) hybrid molecules featuring porphyrin (TPPO-(G∧C)2) and oligothiophene groups (6T-(G∧C)2) were synthesized. In organic solution, these molecules self-assemble into one-dimensional rosette nanotubes (RNTs) featuring the porphyrin or oligiothiophene groups on the outer surface. Using a combination of imaging and spectroscopic techniques we established the structure of the TPPO-(G∧C)2 and 6T-(G∧C)2 RNTs and compared the HOMO and LUMO energy levels with PC61BM, a well-known electron acceptor material. These studies, in combination with solid-state photoluminescence data of PC61BM-TPPO-(G∧C)2 RNT blended thin films, indicates that these self-assembled nanomaterials have great potential as electron donor materials for solution-processed organic photovoltaics.

Novel Self-Complimentary Tricyclic Heterocycles: Expanding the Chemistry of Self-Assembled Rosette Nanotubes

2007 ◽  
Vol 1057 ◽  
Author(s):  
Gabor Borzsonyi ◽  
Andrew J. Myles ◽  
Ross Johnson ◽  
Jae-Young Cho ◽  
Takeshi Yamazaki ◽  
...  
Keyword(s):  
Self Assembly ◽  
External Diameter ◽  
Rosette Nanotubes ◽  
Self Assembled

ABSTRACTIn an effort to increase the internal and external diameter of the RNT's, tricyclic GΛC base derivatives (XGΛC) have been synthesized and characterized. Hierchichal self-assembly results in formation of RNT's with an increased diameter, as evidenced by AFM and TEM measurements. Progress on the derivitization and characterization of the XGΛC RNT's will be presented.

scholarly journals Molecular Imaging of Self-Assembled Rosette Nanotubes by Scanning Tunneling Microscopy

2014 ◽  
Vol 20 (S3) ◽  
pp. 2080-2081 ◽  
Author(s):  
Jae-Young Cho ◽  
Liang Shuai ◽  
Mounir El-Bakkari ◽  
Hicham Fenniri
Keyword(s):  
Molecular Imaging ◽  
Scanning Tunneling Microscopy ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Rosette Nanotubes ◽  
Self Assembled
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