Results 221 to 230 of about 118,629 (299)

Spectroscopic Signatures of Doping in Thin Films of Semiconducting Single‐Walled Carbon Nanotubes

Small, EarlyView.
This review presents an overview of the spectroscopic changes of semiconducting single‐walled carbon nanotubes upon chemical, electrochemical or electrostatic doping. The presence of holes or electrons directly affects visible to far‐infrared absorption, near‐infrared fluorescence and electroluminescence as well as Raman spectra, which enables in‐situ ...
Jana Zaumseil
wiley   +1 more source

Publisher Correction: Terahertz field effect in a two-dimensional semiconductor. [PDF]

Nat Commun
Hiraoka T, Nestler S, Zhang W, Rossel S, Hafez HA, Fabretti S, Schlörb H, Thomas A, Turchinovich D.   +8 more
europepmc   +1 more source

Do We Really Know Why Carbon Nanotubes Grow?

Small, EarlyView.
The CNT growth mechanism is still debated. We propose a heterogeneous (2D) classical nucleation framework comparing pathways for graphenic patches, caps, and full CNTs. Despite its simplicity, it rationalizes key trends, including the correlation between catalyst particle size and CNT diameter.
Nicola Verziaggi, Matteo Bragagnolo, Niloufar Atashi, Paula Dias, Adelio Mendes, Gonzalo Prieto, Simone Meloni   +6 more
wiley   +1 more source

Heterolayered Carbonized MXene/Polyimide Aerogel for Low-Reflection Electromagnetic Interference Shielding and Multi-Spectrum Compatible Protection. [PDF]

Nanomicro Lett
Zhang S, Liang CM, Zhou L, Wu J, Koo MC, Wu Z, Chen YT, Wang GS.   +7 more
europepmc   +1 more source

Combinatorial Synthesis of BaCu2Se2 Thin Films: Effect of Composition on Crystal Structure and Optoelectronic Properties

Small, EarlyView.
The emerging BaCu2Se2 semiconductor compound is synthesized in combinatorial thin film libraries for fast screening of its fundamental properties related to the application in sustainable energy sources. Ba‐rich and Cu‐rich compositions are explored.
Marin Rusu, José A. Márquez, Hannes Hempel, Galina Gurieva, Leo Choubrac, Ibrahim Simsek, Rene Schwiddessen, Pablo Reyes‐Figueroa, Daniel Molpeceres, Robert Wenisch, Markus Schleuning, Jan‐Ekkehard Hoffmann, Klaus Habicht, Christian A. Kaufmann, Iver Lauermann, Susan Schorr, Thomas Unold   +16 more
wiley   +1 more source

Scalable Room‐Temperature Terahertz Graphene Cameras

Small Methods, EarlyView.
ABSTRACT Terahertz (THz) imaging has emerged as a powerful tool for non‐destructive, label‐free analysis across several scientific disciplines, ranging from materials science to biomedical research. By capturing the spatial‐dependent information in a broad range of frequencies, this technique enables the identification of chemical composition ...
Lili Shi, Leonardo Viti, Miriam S. Vitiello   +2 more
wiley   +1 more source

Approximate resolution convolution function for fitting a dispersion gap measured on a triple‐axis spectrometer

Journal of Applied Crystallography, EarlyView.
An analytical convoluted gap function is presented for fitting either a linear or a quadratic dispersion gap in a constant‐Q cut measured with a focused triple‐axis spectrometer. It outperforms previous methods of fitting a gap, without requiring a full resolution convolution.We present an analytical convoluted gap function for fitting dispersion gaps ...
Emma Y. Lenander, Silas B. Schack, Kim Lefmann, Henrik M. Rønnow   +3 more
wiley   +1 more source

Terahertz integrated sensing and mobile communications empowered by a 220-GHz-band portable device. [PDF]

Nat Commun
Wang G, Li M, Liu Q, Zang J, Li O, Du X, Xu L, Tao M, Han C.   +8 more
europepmc   +1 more source

Compact free‐electron lasers as enablers of beyond‐6G and quantum communication systems

Journal of Synchrotron Radiation, EarlyView.
Compact free‐electron lasers are investigated as scalable, high‐coherence light sources capable of enabling beyond‐6G and quantum communication systems through ultrafast data rates, wide spectral tunability, and high signal‐to‐noise performance.Free‐electron lasers (FELs) are disruptive light sources that offer ultrashort pulses, wide spectral ...
Thair Abdulkareem Khalil Al-Aish, Hanady Amjed Kamil   +1 more
wiley   +1 more source

Nanogap-enhanced terahertz suppression of superconductivity. [PDF]

Nanophotonics
Kim J, Ji G, Lee HT, Kim J, Park HS, Choi U, Seo C, Sohn C, Kim K, Kang B, Park HR.   +10 more
europepmc   +1 more source