Oxygen Doping Modifies Near-Infrared Band Gaps in Fluorescent Single-Walled Carbon Nanotubes

Science ◽  
2010 ◽  
Vol 330 (6011) ◽  
pp. 1656-1659 ◽  
Author(s):  
S. Ghosh ◽  
S. M. Bachilo ◽  
R. A. Simonette ◽  
K. M. Beckingham ◽  
R. B. Weisman
Nano Letters ◽  
2006 ◽  
Vol 6 (3) ◽  
pp. 371-375 ◽  
Author(s):  
Esther S. Jeng ◽  
Anthonie E. Moll ◽  
Amanda C. Roy ◽  
Joseph B. Gastala ◽  
Michael S. Strano

2011 ◽  
Vol 20 (03) ◽  
pp. 687-695 ◽  
Author(s):  
DOMINICK J. BINDL ◽  
MICHAEL S. ARNOLD

A photovoltaic photodetector harnessing near infrared band gap absorption by thin films of post-synthetically sorted semiconducting single walled carbon nanotubes ( s -SWCNTs) is described. Peak specific detectivity of 6×1011 Jones at -0.1 V bias at 1210 nm is achieved using a heterojunction device architecture: indium tin oxide/ ca. 5 nm s -SWCNT / 120 nm C60 / 10 nm 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP) / Ag. The photodiodes are characterized by a series resistance of 2.9 Ω cm2 and a rectification ratio of 104 at ±1V. These results are expected to guide the exploration of new classes of solution-processable, mechanically flexible, integrable, thin film photovoltaic photodetectors with tunable sensitivity in the visible and infrared spectra based on semiconducting carbon nanotubes.


2013 ◽  
Vol 8 (11) ◽  
pp. 873-880 ◽  
Author(s):  
Nicole M. Iverson ◽  
Paul W. Barone ◽  
Mia Shandell ◽  
Laura J. Trudel ◽  
Selda Sen ◽  
...  

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Lukasz Przypis ◽  
Maciej Krzywiecki ◽  
Yoshiaki Niidome ◽  
Haruka Aoki ◽  
Tomohiro Shiraki ◽  
...  

AbstractSingle-walled carbon nanotubes (SWCNTs) have been modified with ester groups using typical organic radical chemistry. Consequently, traps for mobile excitons have been created, which enhanced the optical properties of the material. The proposed methodology combines the benefits of mainstream approaches to create luminescent defects in SWCNTs while it simultaneously avoids their limitations. A step change was achieved when the aqueous medium was abandoned. The selection of an appropriate organic solvent enabled much more facile modification of SWCNTs. The presented technique is quick and versatile as it can engage numerous reactants to tune the light emission capabilities of SWCNTs. Importantly, it can also utilize SWCNTs sorted by chirality using conjugated polymers to enhance their light emission capabilities. Such differentiation is conducted in organic solvents, so monochiral SWCNT can be directly functionalized using the demonstrated concept in the same medium without the need to redisperse the material in water.


2019 ◽  
Vol 55 (91) ◽  
pp. 13757-13760 ◽  
Author(s):  
Yutaka Maeda ◽  
Hiyori Murakoshi ◽  
Haruto Tambo ◽  
Pei Zhao ◽  
Kiyonori Kuroda ◽  
...  

We designed and synthesized SWNT quantum defects, the band gaps of which can be tuned by thermal treatment. Theoretical calculations suggest that the change in the PL spectra can be explained by isomerization from kinetic to thermodynamic products.


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