Super growth of vertically aligned carbon nanotubes on pulsed laser deposited catalytic thin films

Fejes, Dóra; Pápa, Zsuzsanna; Kecsenovity, Egon; Réti, Balázs; Tóth, Zsolt; Hernádi, Klára

doi:10.1007/s00339-014-8965-3

Cited by 20 publications

(12 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…From an application perspective, however, many of these composites suffer from the short length of the CNTs (or, in other words, the small thickness of the hybrid films), thus hampering their practical utilization. In a currently ongoing study in our laboratories, Cu 2 O nanocrystals are electrodeposited on the surface of vertically aligned ultralong CNTs, obtained by catalytic chemical vapor deposition (CCVD) . As these nanotube forests are approximately 1 mm high, diffusion of Cu 2+ can ultimately be the rate‐limiting step in the deposition process.…”

Section: What Properties Can Be Tailored?mentioning

confidence: 99%

Electrodeposition of Inorganic Oxide/Nanocarbon Composites: Opportunities and Challenges

2015

View full text Add to dashboard Cite

show abstract

Section: What Properties Can Be Tailored?mentioning

confidence: 99%

Electrodeposition of Inorganic Oxide/Nanocarbon Composites: Opportunities and Challenges

2015

View full text Add to dashboard Cite

show abstract

“…From the perspective of the catalyst, the thickness, composition, density and adherence of the transition metal layer are crucial parameters and have major effect on the properties of CNT growth. The applied techniques so far are very effective but rather expensive such as magnetron sputtering 15 , 16 , radio frequency sputtering 17 , 18 , electron beam evaporation 19 – 21 and physical vapor deposition 22 , 23 , therefore developing a cheap, easy-to-handle method would be desirable. In 2003 it was already pointed out that high-quality but not aligned SWNTs can be synthesized directly onto silicon and quartz substrates using the easy and costless dip-coating approach for the deposition of catalytic metals 24 .…”

Section: Introductionmentioning

confidence: 99%

Influence of synthesis parameters on CCVD growth of vertically aligned carbon nanotubes over aluminum substrate

Szabó

Kecsenovity

Pápa

et al. 2017

Sci Rep

View full text Add to dashboard Cite

In the past two decades, important results have been achieved in the field of carbon nanotube (CNT) research, which revealed that carbon nanotubes have extremely good electrical and mechanical properties The range of applications widens more, if CNTs form a forest-like, vertically aligned structure (VACNT) Although, VACNT-conductive substrate structure could be very advantageous for various applications, to produce proper system without barrier films i.e. with good electrical contact is still a challenge. The aim of the current work is to develop a cheap and easy method for growing carbon nanotubes forests on conductive substrate with the CCVD (Catalytic Chemical Vapor Deposition) technique at 640 °C. The applied catalyst contained Fe and Co and was deposited via dip coating onto an aluminum substrate. In order to control the height of CNT forest several parameters were varied during the both catalyst layer fabrication (e.g. ink concentration, ink composition, dipping speed) and the CCVD synthesis (e.g. gas feeds, reaction time). As-prepared CNT forests were investigated with various methods such as scanning electron microscopy, Raman spectroscopy, and cyclic voltammetry. With such an easy process it was possible to tune both the height and the quality of carbon nanotube forests.

show abstract

“…The catalyst layer can be deposited in various ways. For example, wet-chemical methods as dip-coating, spray coating, or high vacuum techniques as thermal evaporation, magnetron sputtering, and pulsed laser deposition (PLD) (Mauron et al, 2002; Murakami et al, 2003; Fejes et al, 2015). In 2007, Noda et al studied the effect of the presence of aluminum oxide on silicon substrate in relation to the synthesis of carbon nanotube forests.…”

Section: Introductionmentioning

confidence: 99%

Growth of CNT Forests on Titanium Based Layers, Detailed Study of Catalysts

et al. 2018

View full text Add to dashboard Cite

For better electrical contacts of potential devices, growth of vertically aligned carbon nanotubes (CNT forests) directly onto conductive substrates is an emerging challenge. Here, we report a systematic study on the CCVD synthesis of carbon nanotube forests on titanium based substrates. As a crucial issue, the effect of the presence of an insulating layer (alumina) on the growing forest was investigated. Other important parameters, such as the influence of water vapor or the Fe-Co catalyst ratio, were also studied during the synthesis. As-prepared CNT forests were characterized by various techniques: scanning and transmission electron microscopies, Raman spectroscopy, spectroscopic ellipsometry. CNT forests grown directly onto the conductive substrate were also tested as electrodes in hybrid halide perovskite photodetectors and found to be effective in detecting light of intensity as low as 3 nW.

show abstract

Super growth of vertically aligned carbon nanotubes on pulsed laser deposited catalytic thin films

Cited by 20 publications

References 28 publications

Electrodeposition of Inorganic Oxide/Nanocarbon Composites: Opportunities and Challenges

Electrodeposition of Inorganic Oxide/Nanocarbon Composites: Opportunities and Challenges

Influence of synthesis parameters on CCVD growth of vertically aligned carbon nanotubes over aluminum substrate

Growth of CNT Forests on Titanium Based Layers, Detailed Study of Catalysts

Contact Info

Product

Resources

About