Functionalized Carbon Nanostructures for Flexible Electronics

Moradi, Rasoul; Pour Khalili, Nazila; Khanmamadova, Elmira; Abaszade, Rashad

doi:10.1007/978-3-031-14955-9_71-1

Handbook of Functionalized Carbon Nanostructures 2024

DOI: 10.1007/978-3-031-14955-9_71-1

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Functionalized Carbon Nanostructures for Flexible Electronics

Rasoul Moradi,

Nazila Pour Khalili,

Elmira Khanmamadova

et al.

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2024

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Cited by 1 publication

References 33 publications

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Photoconductivity of functionalized carbon nanotubes

Abaszade,

Mammadov,

Khanmamedova

et al. 2024

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Investigation of carbon nanotubes is a modern trend due to their combination of unique physical, chemical, electrical, and optical properties. Carboxyl-functionalized carbon nanotubes (fCNTs) for investigation of photoelectrical properties were synthesized. The photo-sensitivity spectra of a carboxyl-functionalized CNT sample for voltage range from 1 to 9 V, and for the spectral range from 400 to 900 nm were investigated. The voltage equal to 1 V generated lower photosensitivity in the broadband wavelength range for visible to near-infrared. The most efficient photocurrents of fCNTs were received for a voltage of 5 V in the wavelength range λp~400-800 nm and for voltage U=3V in the broadband spectral range λp~400-900 nm. The experimental data analysis helped to determine the widest photosensitivity range, as well as the highest sensitivity value. As result, the voltage U=5V was obtained. Here, the most significant photocurrent peak with Ip~2.67 μA for wavelength λ~720 nm was observed. A comparison between the photosensitivity spectra of fCNTs and pure CNTs shows that the photosensitivity of fCNTs has increased significantly. Thus, the maximum photosensitivity for fCNTs is Ip ~ 2.67 μA, and for pure CNTs, it equals Ip ~ 0.185 μA. A 14-fold enhancement of photosensitivity for fCNT has been registered. The mathematical analysis of spectral dependencies of generated photocurrents under different applied voltages can be described using fourth-order polynomials. The I-V characteristics for wavelengths 760 nm and 780 nm have the same trend with the shift of photocurrent maximum to the lower parameters of voltage. The carboxyl-functionalized nanotubes can be effectively used as light detectors and in optoelectronic applications.

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Photoconductivity of functionalized carbon nanotubes

Abaszade,

Mammadov,

Khanmamedova

et al. 2024

DJNB

View full text Add to dashboard Cite

show abstract

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Functionalized Carbon Nanostructures for Flexible Electronics

Cited by 1 publication

References 33 publications

Photoconductivity of functionalized carbon nanotubes

Photoconductivity of functionalized carbon nanotubes

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