Vertically aligned carbon nanotubes

Metal Oxide and Carbon based Sensors

Chemoresistors

Based on carbon alone or in combination with nanostructured metal oxides these materials often comprise a composite structure with high sensoric avtivity. Often higher sensitivity and room temperature operation compared to their single counterparts, e.g. sole oxides are important characteristics. Methods for their synthesis include wet-chemical but often also gas phase approaches (CVD, ALD) which allow for structured manufacture of sensor device structure.

Nano electromechanical sensors (NEMS)

Vertically aligned carbon nanotubes (VACNTs) offer a mechanically robust platform for mechanical sensing. The geometrical parameters are widely adjustable and as such NEMS sensors based on these materials have a great application potential. This can even be expanded when the oxides are deposited to change their active mass and surface chemistry.

Mechano sensors

are closely related to the NEMS and bio-interfacial sensors. They are constituted of multiple blocks of VACNT sensors structured in an array arrangement and are thus highly sensitive as their NEMS counterparts but are already microstructured and allow for multiple and geometrically confined sensing

See our contributions:

  • W. Zouaghi, L. Hussein, M. D. Thomson, Q. Islam, N. Nicoloso, T. Heinlein, J. Engstler, J. J. Schneider, H. G. Roskos “Towards gas sensing with vertically aligned carbon nanotubes interrogated by THz radiation pulses”, Lithuanian J. Phys. , (2018), 58, 1-11
  • P. Krauß, T. Wombacher, J.J. Schneider “Synthesis of carbon nanofibers by thermal conversion of 5,6;11,12-di-o-phenylenetetracene and application in a chemiresistor gas sensor”, RSC Advances , (2017), 7, 45185 – 45194
  • O. Yilmazoglu, S. Yadav, D. Cicik, J.J. Schneider “A nano-microstructured artificial hair cell type sensor based on topologically graded 3D carbon nanotube bundles”, Nanotechnology , (2016), 27, 365502
  • C. Nick, S. Yadav, R. Joshi, J.J. Schneider, C. Thielemann “A three-dimensional microelectrode array composed of vertically aligned ultra-dense Carbon Nanotube Networks”, Appl. Phys. Lett. , (2015), 107, 01310
  • M. Pashchanka, R. M. Prasad, R. C. Hoffmann, A. Gurlo, J.J. Schneider “Inkjet printed CuO microstructures for miniaturized gas sensing devices”, Eur. J. Inorg. Chem., (2013), 1481-1487
  • O. Yilmazoglu, A. Popp, D. Pavlidis, J. J. Schneider, D. Garth, F. Schüttler, G. Battenberg “Vertically aligned multiwall carbon nanotubes for pressure, tactile and vibration sensing”, Nanotechnology, (2012), 23, 085501 (doi:10.1088/0957-4484/23/8/085501)
  • R. K. Joshi, J. J. Schneider “Assembly of one-dimensional nanostructures into functional 2D and 3D architectures. Synthesis, arrangement and functionality.”, Chem. Soc. Rev. , (2012), 41, 5285-5312
  • E. Kayhan, R. Prasad, A. Gurlo, O. Yilmazoglu, D. Pavlidis, J. Engstler, E. Ionescu, S. Yoon, A. Weidenkaff, J. J. Schneider “Synthesis, Characterization, Electronic and Gas Sensing Properties towards H2 and CO of Transparent, Large Area, Low Layer Graphene”, Chem. Soc. Rev. , (2012), 41, 5285-5312
  • O. Yilmazoglu, A. Popp, O. Kaldirim, D. Pavlidis , J. J. Schneider “An Integrated Device Structure Based on Highly Aligned Carbon Tubes for Sensor Applications”, Chem. Comm. , (2009), 3205-3207