10 Result(s)

Article

The power and pain of market-based carbon policies: a global application to greenhouse gases from ruminant livestock production

The objectives of this research are to assess the greenhouse gas mitigation potential of carbon policies applied to the ruminant livestock sector [inclusive of the major ruminant species—cattle (Bos Taurus and Bo...

B. Henderson, A. Golub, D. Pambudi… in Mitigation and Adaptation Strategies for G… (2018)

Article

Long lived photo excitations in (6, 5) carbon nanotubes

We study the photo-induced transmission change (ΔT/T) upon quasi-continuum laser excitation, for different modulation frequency and excitation intensity in films of (6, 5) enriched CoMoCat single wall nanotube...

C. Sciascia, J. Crochet, T. Hertel, G. Lanzani in The European Physical Journal B (2010)

Chapter and Conference Paper

Evidence for electron correlation in (6,5) carbon nanotubes from pump-probe spectroscopy with broadband pulses

Pump-probe spectroscopy with 10 fs time resolution is performed on (6,5) carbon nanotubes. We decompose the spectra into contributions from the first and second exciton,demonstrating their electronic correlation.

L. Lüer, J. Crochet, T. Hertel, D. Polli, G. Lanzani in Ultrafast Phenomena XVI (2009)

Article

Electronic structure and dynamics of optically excited single-wall carbon nanotubes

We have studied the electronic structure and charge-carrier dynamics of individual single-wall carbon nanotubes (SWNTs) and nanotube ropes using optical and electron–spectroscopic techniques. The electronic st...

A. Hagen, G. Moos, V. Talalaev, T. Hertel in Applied Physics A (2004)

Article

Carbon Nanotube Photophysics

In single-walled carbon nanotubes (SWNTs), their electronic and vibrational structure as well as their charge-carrier dynamics are crucial for potential ultrasmall optical device applications. SWNT properties ...

A. Jorio, R. Saito, T. Hertel, R. B. Weisman, G. Dresselhaus… in MRS Bulletin (2004)

Article

Charge-carrier dynamics in single-wall carbon nanotube bundles: a time-domain study

We present a real-time investigation of ultra-fast carrier dynamics in single-wall carbon nanotube bundles using femtosecond time-resolved photoelectron spectroscopy. The experiments allow us to study the proc...

T. Hertel, R. Fasel, G. Moos in Applied Physics A (2002)

Article

AFM-tip-induced and current-induced local oxidation of silicon and metals

P. Avouris, R. Martel, T. Hertel, R. Sandstrom in Applied Physics A (1998)

Chapter

Bio-Aktivitäts-Sensorik (BAS)

Eine große Aufgabe unserer Zeit liegt in der ökologischen Umgestaltung unseres Lebens. Dies betrifft nicht nur die Produktion, sondern auch die Konsumtion. Wichtige Schritte in diese Richtung werden maßgeblich...

T. Hertel, M. Leifheit in Multisensorikpraxis (1997)

Chapter and Conference Paper

Time-Resolved Two-Color Photoelectron Spectroscopy at Bare and Adsorbate Covered Metal Surfaces

We investigate the influence of rare-gas (Xe, Kr) overlayers on the ultra-fast dynamics of photoexcited electrons in image-potential states on Cu(111). A density matrix calculation using the Liouville-von-Neum...

T. Hertel, E. Knoesel, M. Wolf, G. Ertl in Ultrafast Phenomena X (1996)