Prof. László Péter Biró Profile

Prof. László Péter Biró

Head of Lab. for Nano Research at MTA-MFA

SPIE Involvement:

Author

Proceedings Article | 3 October 2022 Presentation + Paper

Structural colors of blue butterflies: from photonic nanoarchitectures to DNA

Gábor Piszter, Krisztián Kertész, Gábor Sramkó, Zsolt Bálint, László Péter Biró

Proceedings Volume 12214, 1221408 (2022) https://doi.org/10.1117/12.2638427

KEYWORDS: Photonic nanostructures, Reflectivity, Genetics, Principal component analysis, Visual communications, Reflectance spectroscopy, Physics

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Proceedings Article | 13 March 2019 Presentation + Paper

The structural colors of the blue butterflies: from sexual signaling to chemically selective vapor sensing

Gábor Piszter, Krisztián Kertész, Zsolt Bálint, László Biró

Proceedings Volume 10965, 109650V (2019) https://doi.org/10.1117/12.2517312

KEYWORDS: Photonic nanostructures, Sensors, Biological and chemical sensing, Biomedical optics, Reflectivity, Spectroscopy, Principal component analysis, Optical properties, Scanning electron microscopy

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SPIE Journal Paper | 5 December 2012

Forming electronic waveguides from graphene grain boundaries

Géza Márk, Péter Vancsó, Philippe Lambin, Chanyong Hwang, Laszlo Biro

JNP, Vol. 6, Issue 01, 061718, (December 2012) https://doi.org/10.1117/12.10.1117/1.JNP.6.061718

KEYWORDS: Graphene, Waveguides, Scanning tunneling microscopy, Chemical vapor deposition, Nanoelectronics, Reflection, Radio propagation, Refraction, Physics, Nanowires

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Proceedings Article | 11 August 2008 Paper

Photonic nanoarchitectures occurring in butterfly scales as selective gas/vapor sensors

L. Biró, K. Kertész, Z. Vértesy, Zs. Bálint

Proceedings Volume 7057, 705706 (2008) https://doi.org/10.1117/12.794910

KEYWORDS: Sensors, Photonic nanostructures, Reflectivity, Scanning electron microscopy, Transmission electron microscopy, Spectrophotometry, Photonic crystals, Optical properties, Bioalcohols, Crystals

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Proceedings Article | 25 June 2007 Paper

Quasi-ordered photonic bandgap materials of biologic origin: butterfly scales

L. Biró, Zs. Bálint, K. Kertész, Z. Vértesy, G. Márk, L. Tapasztó, V. Lousse, J. P. Vigneron

Proceedings Volume 6593, 659318 (2007) https://doi.org/10.1117/12.723535

KEYWORDS: Reflectivity, Scanning electron microscopy, Photomicroscopy, Photonic crystals, Transmittance, Transmission electron microscopy, Optical microscopy, Refractive index, Biological research, Visible radiation

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Proceedings Article | 13 April 2005 Paper

Reflectance of topologically disordered photonic-crystal films

Jean-Pol Vigneron, Virginie Lousse, Laszlo Biro, Zofia Vertesy, Zolt Balint

Proceedings Volume 5733, (2005) https://doi.org/10.1117/12.588749

KEYWORDS: Scattering, Correlation function, Reflectivity, Reflection, Photonic crystals, Laser scattering, Scanning electron microscopy, Optical filters, Diffraction, Refractive index

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Proceedings Article | 29 April 2003 Paper

STM investigation of carbon nanotubes completely covered with functional groups

Antal Koos, Zsolt Endre Horvath, Zoltan Osvath, Levente Tapaszto, Krisztián Niesz, Zoltan Konya, Imre Kiricsi, Nicole Grobert, Manfred Ruehle, Laszlo Biro

Proceedings Volume 5118, (2003) https://doi.org/10.1117/12.498912

KEYWORDS: Scanning tunneling microscopy, Carbon nanotubes, Transmission electron microscopy, Gold, Composites, Nanoelectronics, Spectroscopy, Single walled carbon nanotubes, Physics, Materials science

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Proceedings Article | 29 April 2003 Paper

STM and STS investigation of few-wall carbon nanotubes containing non-hexagonal carbon rings

Zoltan Osvath, Laurent Fulcheri, Geza Mark, Levente Tapaszto, Jozsef Gyulai, Laszlo Biro

Proceedings Volume 5118, (2003) https://doi.org/10.1117/12.498988

KEYWORDS: Carbon nanotubes, Scanning tunneling microscopy, Carbon, Plasma, Nanostructures, Spectroscopy, Electrodes, Temperature metrology, Image segmentation, Fullerenes

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Proceedings Article | 29 April 2003 Open Access

Regularly coiled carbon nanotubes

Laszlo Biro, Geza Mark, Philippe Lambin

Proceedings Volume 5118, (2003) https://doi.org/10.1117/12.498942

KEYWORDS: Carbon nanotubes, Carbon, Graphene, Semiconductors, Chemical vapor deposition, Scanning tunneling microscopy, Nanostructures, Chemical species, Particles, Transmission electron microscopy

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Proceedings Article | 29 April 2003 Paper

Synthesis procedures for production of carbon nanotube junctions

Imre Kiricsi, Zoltan Konya, Krisztian Niesz, Antal Koos, Laszlo Biro

Proceedings Volume 5118, (2003) https://doi.org/10.1117/12.501326

KEYWORDS: Carbon nanotubes, Metals, Particles, Transmission electron microscopy, Molecules, Carbon, Single walled carbon nanotubes, Nanoelectronics, Chemical vapor deposition, Atomic force microscopy

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A quite wide brunch of the carbon nanotube science, including the utilization of singlewall nanotube for production of nano-electronic devices has being continuously explored even nowadays. Tuning and modifying the synthesis procedures to obtain nanotube junctions of T, Y, H or X shapes lead to inappropriate results concerning the industrial or large scale production. However, the importance and the demand for these junctions are quite large, since these may be the secondary building units of carbon nanotubes based chips or even more complex nanoelectronic devices. Recently, some novel solutions of their preparation have been published. A Taiwanese group described a method to prepare multi-junctioned carbon nanotubes on mechanically pretreated silicon surface applying chemical vapor deposition (CVD) technology using decomposition of methane at 1373 K. The nanotubes were nucleated following the lines prepared by scratching the surface with 600-grit sand paper. Contrary to the physical pretreatment of a substrate surface, chemical reactions can also be used for the preparation of carbon nanotube junctions. P.W. Chu et al. reported interconnecting reactions between functionalized carbon nanotubes . By the described method, the carboxyl groups on the wall of singlewall carbon nanotubes are converted to carbonyl chloride groups by reaction with SOCl2 at room temperature. The formed COCl groups are very reactive on the outer surface and can be reacted easily with various amines, particularly diamines resulting in the formation of amide bonding. When two functionalized carbon nanotubes react with such an amine molecule interconnection of tubes is generated. The resulted carbon nanotube junctions have been investigated by AFM. In this presentation, we report on the results obtained on the preparation of carbon nanotube junctions applying two different procedures. The first method is similar to Chu’s one, which was mentioned above, i.e. we used functionalized multiwall carbon nanotubes and the successful interconnection of them by propylene diamine has been proven by TEM and AFM. The second method demonstrates a novel principle: catalyst material has been deposited on the outer surface of carbon nanotubes and branches of nanotubes were produced at this contact point by catalytic chemical vapor deposition (CCVD) of acetylene. The product has been characterized by TEM.

Showing 5 of 10 publications

Conference Committee Involvement (1)

Nanotechnology

19 May 2003 | Maspalomas, Gran Canaria, Canary Islands, Spain

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