TY - JOUR
T1 - Focused Ion Beam Engineering of Carbon Nanotubes for Optical Rectenna Applications
AU - Abbas, Yawar
AU - Khan, Muhammad Umair
AU - Ravaux, Florent
AU - Mohammad, Baker
AU - Rezeq, Moh'D
N1 - Funding Information:
This publication is based upon work supported by Khalifa University of Science and Technology, System on Chip lab, under award no. 8474000134.
Publisher Copyright:
© 2022 American Chemical Society. All rights reserved.
PY - 2022/12/23
Y1 - 2022/12/23
N2 - The optical rectenna is a device that converts the optical range of electromagnetic radiations to a direct current. Optical antennas, as for the radio frequency (RF) antennas, require an antenna's structure in the range of optical light EM wavelengths, i.e., a few hundred nanometers to a few micrometers. Herein, we demonstrate the optical rectenna effect of single-wall carbon nanotubes (SWCNTs) by cutting them in the resonance lengths of monopole nano-antennas (i.e., λ/4) of 100, 150, and 200 nm to convert incident red, green, and blue lights into a direct current. The physical engineering (cutting) of SWCNTs dispersed on SiO2/Si, comparable to one-quarter of the incident monochromatic light wavelength (i.e., red, green, and blue), is carried out with high-energy gallium (Ga) ion beams, with the help of a focused ion beam (FIB) system. The rectenna characteristics of these engineered SWCNTs are investigated using conductive mode atomic force microscopy (C-AFM). This unprecedented approach to investigating the optical rectennas will open more directions to study the rectenna effect at the nanometer scale.
AB - The optical rectenna is a device that converts the optical range of electromagnetic radiations to a direct current. Optical antennas, as for the radio frequency (RF) antennas, require an antenna's structure in the range of optical light EM wavelengths, i.e., a few hundred nanometers to a few micrometers. Herein, we demonstrate the optical rectenna effect of single-wall carbon nanotubes (SWCNTs) by cutting them in the resonance lengths of monopole nano-antennas (i.e., λ/4) of 100, 150, and 200 nm to convert incident red, green, and blue lights into a direct current. The physical engineering (cutting) of SWCNTs dispersed on SiO2/Si, comparable to one-quarter of the incident monochromatic light wavelength (i.e., red, green, and blue), is carried out with high-energy gallium (Ga) ion beams, with the help of a focused ion beam (FIB) system. The rectenna characteristics of these engineered SWCNTs are investigated using conductive mode atomic force microscopy (C-AFM). This unprecedented approach to investigating the optical rectennas will open more directions to study the rectenna effect at the nanometer scale.
KW - CNTs
KW - focused ion beam
KW - nano-engineering
KW - optical rectenna
KW - resonance wave-length
UR - http://www.scopus.com/inward/record.url?scp=85143911364&partnerID=8YFLogxK
U2 - 10.1021/acsanm.2c04353
DO - 10.1021/acsanm.2c04353
M3 - Article
AN - SCOPUS:85143911364
SN - 2574-0970
VL - 5
SP - 18537
EP - 18544
JO - ACS Applied Nano Materials
JF - ACS Applied Nano Materials
IS - 12
ER -