scholarly journals Process-morphology scaling relations quantify self-organization in capillary densified nanofiber arrays

2018 ◽  
Vol 20 (6) ◽  
pp. 3876-3881 ◽  
Author(s):  
Ashley L. Kaiser ◽  
Itai Y. Stein ◽  
Kehang Cui ◽  
Brian L. Wardle

Model-informed experiments reveal that cellular pattern formation in capillary-densified aligned carbon nanotube arrays is governed not only by their height, but also by substrate adhesion strength.

Nanoscale ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 261-271
Author(s):  
Ashley L. Kaiser ◽  
Dale L. Lidston ◽  
Sophie C. Peterson ◽  
Luiz H. Acauan ◽  
Stephen A. Steiner ◽  
...  

Aligned carbon nanotube (CNT) array adhesion strength evolves with CNT process time, decreasing and then increasing during growth and annealing, as captured by models relating CNT diameter, array effective modulus, and CNT–substrate work of adhesion.


2007 ◽  
Vol 18 (30) ◽  
pp. 305301 ◽  
Author(s):  
Xiao Huang ◽  
Jijie J Zhou ◽  
Elijah Sansom ◽  
Morteza Gharib ◽  
Sow Chorng Haur

2008 ◽  
Vol 19 (43) ◽  
pp. 435602 ◽  
Author(s):  
Jia-Qi Huang ◽  
Qiang Zhang ◽  
Guang-Hui Xu ◽  
Wei-Zhong Qian ◽  
Fei Wei

2021 ◽  
Author(s):  
Jeonyoon Lee ◽  
Luiz H. Acauan ◽  
Estelle Kalfon-Cohen ◽  
Seth S. Kessler ◽  
Brian L. Wardle

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1810
Author(s):  
Mengjie Li ◽  
Qilong Wang ◽  
Ji Xu ◽  
Jian Zhang ◽  
Zhiyang Qi ◽  
...  

Due to the high field enhancement factor and photon-absorption efficiency, carbon nanotubes (CNTs) have been widely used in optically induced field-emission as a cathode. Here, we report vertical carbon nanotube arrays (VCNTAs) that performed as high-density electron sources. A combination of high applied electric field and laser illumination made it possible to modulate the emission with laser pulses. When the bias electric field and laser power density increased, the emission process is sensitive to a power law of the laser intensity, which supports the emission mechanism of optically induced field emission followed by over-the-barrier emission. Furthermore, we determine a polarization dependence that exhibits a cosine behavior, which verifies the high possibility of optically induced field emission.


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