Crystallized Indium-Tin Oxide Composites Grown onto Single-Walled Carbon Nanotubes at a Low Temperature by Nanocluster Deposition

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.

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Growth of Single‐Walled Carbon Nanotubes with Different Chirality on Same Solid Cobalt Catalysts at Low Temperature

Small ◽

10.1002/smll.201903896 ◽

2019 ◽

Vol 15 (46) ◽

pp. 1903896 ◽

Cited By ~ 5

Author(s):

Shuchen Zhang ◽

Dewu Lin ◽

Weiming Liu ◽

Yue Yu ◽

Jin Zhang

Keyword(s):

Carbon Nanotubes ◽

Low Temperature ◽

Single Walled Carbon Nanotubes ◽

Cobalt Catalysts ◽

Single Walled Carbon ◽

Walled Carbon Nanotubes

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Low Temperature Synthesis of Single-Walled Carbon Nanotubes in an Inductively Coupled Plasma Chemical Vapor Deposition System

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2008.535 ◽

2008 ◽

Vol 8 (5) ◽

pp. 2526-2533 ◽

Cited By ~ 4

Author(s):

Cheng-Hui Weng ◽

Chao-Shun Yang ◽

Hsuan Lin ◽

Chuen-Horng Tsai ◽

Keh-Chyang Leou

Keyword(s):

Carbon Nanotubes ◽

Low Temperature ◽

Inductively Coupled Plasma ◽

Chemical Vapor ◽

Single Walled Carbon Nanotubes ◽

Low Temperature Synthesis ◽

Temperature Synthesis ◽

Single Walled Carbon ◽

Inductively Coupled ◽

Walled Carbon Nanotubes

In this work, we present a parametric study on the low temperature synthesis of single-walled carbon nanotubes (SWNTs) in an inductively coupled plasma (ICP) CVD system using dry bi-layered catalytic thin-films (Fe/Al and Ni/Al, deposited by electron-beam evaporation method) as the catalysts. With a low substrate temperature of 550 °C and above, SWNTs were successfully synthesized on both catalysts, as revealed from the characteristic peaks of SWNTs in the micro-Raman spectra. By the reduction of plasma power and the shortening of the process times, the lowest synthesis temperature of SWNTs achieved in our system was approached to 500 °C on Ni/Al catalysts; on the other hands, the lowest temperature for Fe/Al catalysts was 550 °C. Our results suggest that as compared with Fe/Al, Ni/Al is more favorable for plasma-enhanced CVD (PECVD) synthesis of SWNTs at low temperatures. This work can be used for further improvements and better understanding on the production processes of SWNTs by PECVD methods.

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