High-power Q-switched erbium-ytterbium codoped fiber laser using multiwalled carbon nanotubes saturable absorber

2016 ◽  
Vol 55 (10) ◽  
pp. 106112 ◽  
Author(s):  
Mohd Zulhakimi Ab Razak ◽  
Zatul Saliza Saleh ◽  
Fauzan Ahmad ◽  
Carol Livan Anyi ◽  
Sulaiman W. Harun ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Fiber Laser ◽  
Multiwalled Carbon Nanotubes ◽  
Saturable Absorber ◽  
High Power ◽  
Multiwalled Carbon

Preparation and Characterization of Activated Carbon Nanofiber Webs Containing Multiwalled Carbon Nanotubes by Electrospinning

2007 ◽  
Vol 119 ◽  
pp. 55-58 ◽  
Author(s):  
Soo Jin Park ◽  
Se Hyuk Im ◽  
John M. Rhee ◽  
Young Seak Lee
Keyword(s):  
Carbon Nanotubes ◽  
Activated Carbon ◽  
Multiwalled Carbon Nanotubes ◽  
High Power ◽  
Carbon Nanofiber ◽  
Rechargeable Batteries ◽  
High Specific Surface Area ◽  
Electrospinning Process ◽  
Multiwalled Carbon ◽  
Long Cycle Life

Electrochemical double layer capacitors (EDLCs) are promising high power energy sources for many different applications where high power density, high cycle efficiency and long cycle life are needed. However, because the energy density of EDLCs is small compared to that of rechargeable batteries one needs to increase the capacitance of EDLCs. The nanofiber diameters range from 50 nm to 400 nm, depending on the concentration of polymer solution types, tip-to-collector distance, applied voltage, and viscosity of the solution. The main advantage of the electrospinning process is that it is a simple means to prepare continuous fibers with unusually large surface to volume ratios and pore structure surfaces. So, feature of nanofiber webs are the high specific surface area developed by creating pores on the nanofiber surface. In this work, the multiwalled carbon nanotubes embedded polyacrylonitrile solutions in N,N-dimethylformamide (DMF) were electrospun to be webs consisting of 350 nm ultrafine nanofibers, which were used to produce a series of activated carbon nanofibers with developed mesoporosity and high electrical conductivity through stabilization, carbonization-activation processes.

Inelastic Deformations in Multi-Walled Carbon Nanotubes

1999 ◽  
Vol 593 ◽  
Author(s):  
D. Tekleab ◽  
R. Czerw ◽  
A. Rubio ◽  
P.M. Ajayan ◽  
D.L. Carroll
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
High Power ◽  
Multiwalled Carbon ◽  
Ultrasonic Agitation ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Insight Into

ABSTRACTWe report the use of high power ultrasonic agitation to create inelastic deformations in multiwalled carbon nanotubes. Using STM coupled with TEM we show that this damage can range from kinking to breaking of continuous tube walls into segments. Such deformed tubes provide an insight into the role of re-hybridization in the electrical and mechanical properties of tubes.

Q-switched thulium-doped fiber laser operating at 1920 nm region with multiwalled carbon nanotubes embedded in polyvinyl alcohol

2014 ◽  
Vol 56 (12) ◽  
pp. 2817-2819 ◽  
Author(s):  
M. T. Ahmad ◽  
A. A. Latiff ◽  
Z. Zakaria ◽  
D. I. M. Zen ◽  
N. Saidin ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Polyvinyl Alcohol ◽  
Fiber Laser ◽  
Multiwalled Carbon Nanotubes ◽  
Multiwalled Carbon

Effect of Multiwalled Carbon Nanotubes On Mechanical Properties of Concrete

2012 ◽  
Vol 2 (6) ◽  
pp. 166-168 ◽  
Author(s):  
Dr.T.Ch.Madhavi Dr.T.Ch.Madhavi ◽  
◽  
Pavithra.P Pavithra.P ◽  
Sushmita Baban Singh Sushmita Baban Singh ◽  
S.B.Vamsi Raj S.B.Vamsi Raj ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Multiwalled Carbon
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