Results 81 to 90 of about 2,191,569 (294)

Raman and scanning tunneling spectroscopic investigations on graphene-silver nanocomposites

Journal of Science: Advanced Materials and Devices, 2018
Graphene-silver (G-Ag) nanocomposites were prepared using liquid phase exfoliation of graphite flakes followed by a reduction of silver nitrate. The plasmonic characteristics of these nanocomposites are highly sensitive to the Ag concentration in the ...
Sheena S. Sukumaran, C.R. Rekha, A.N. Resmi, K.B. Jinesh, K.G. Gopchandran   +4 more
doaj   +1 more source

Scanning Tunneling Spectroscopy of Semiconductor Quantum Dots and Nanocrystals

, 2010
Quantum dots (QDs) and nanocrystals (NCs) have attracted great attention for applications in nano- and opto-electronics, quantum computation, biosensing, and nanomedicine.
MARUCCIO, Giuseppe, Roland Wiesendanger, R. Wiesendanger, Giuseppe Maruccio, Wiesendanger Roland, Maruccio Giuseppe   +5 more
core   +1 more source

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

Advanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis, Filip Aniés, Yiyang Yu, Mohammed Ghadiyali, Hendrik Faber, Zhanibek Bizak, Youssef Kabri, Pavlos Tzourmpakis, Suman Mandal, Linqu Luo, Temur Maksudov, Mohamad Insan Nugraha, Harold F. Mazo‐Mantilla, Patrice Vanelle, Julie Broggi, Khaled N. Salama, Udo Schwingenschlögl, Martin Heeney, Atif Shamim, Thomas D. Anthopoulos   +19 more
wiley   +1 more source

Folding and cracking of graphene oxide sheets upon deposition [PDF]

, 2011
Graphene Oxide (GO) sheets, suspended in an aqueous solution, were deposited on freshly cleaved highly oriented pyrolytic graphite (HOPG) and studied using Raman spectroscopy, atomic force microscopy (AFM) and scanning tunneling microscopy (STM).
Deepak K. Pandey, G. Prakash, Yong P. Chen, Pandey, Deepak K., Chen, Yong P., Reifenberger, R., Chung, Ting Fung, R. Reifenberger, Prakash, G., R. Piner, Piner, R., Ting Fung Chung   +11 more
core   +1 more source

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

Advanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj, Roshni Satheesh Babu, Yuxin Xia, Eva Bestelink, Radu Sporea, Nikos Hastas, Ioannis Zeimpekis, Dimitra G. Georgiadou, Sayani Majumdar   +8 more
wiley   +1 more source

Adsorption, Single‐Molecule Manipulation, and Self‐Assembly of Borazine on Ag(111)

Advanced Materials Interfaces
The interaction of borazine with metal supports and the concomitant surface chemistry play important roles in the synthesis of hexagonal boron nitride and the assembly of BN‐doped carbon nanostructures, thus making adsorbed borazine an intriguing model ...
Tobias Weiss, Aleksandr Baklanov, Georg S. Michelitsch, Karsten Reuter, Martin Schwarz, Manuela Garnica, Willi Auwärter   +6 more
doaj   +1 more source

Dirac surface states and nature of superconductivity in noncentrosymmetric BiPd [PDF]

, 2015
In non-magnetic bulk materials, inversion symmetry protects the spin degeneracy. If the bulk crystal structure lacks a centre of inversion, however, spin-orbit interactions lift the spin degeneracy, leading to a Rashba metal whose Fermi surfaces exhibit ...
Yaresko, Alexander, Peets, Darren C., Sun, Zhixiang, Maldonado, Ana Isabel, Wahl, Peter, Enayat, Mostafa, Lithgow, Calum, Yelland, Ed, Schnyder, Andreas P., Alexander Yaresko, Andreas P. Schnyder, Zhixiang Sun, Mostafa Enayat, Peter Wahl, Darren C. Peets, Calum Lithgow, Ana Maldonado, Ed Yelland, Wahl, Peter; id_orcid   +18 more
core   +1 more source

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

Advanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source

Shell-tunneling Spectroscopy of the single-particle energy levels of insulating quantum dots

, 2001
The energy levels of CdSe quantum dots are studied by scanning tunneling spectroscopy. By varying the tip-dot distance, we switch from shell-filling spectroscopy (where electrons accumulate in the dot and experience mutual repulsion) to shell ...
Vanmaekelbergh, D., Hens, Z., Franceschetti, A., Kouwenhoven, L. P., Kouwenhoven, L.P., BAKKERS, E, Bakkers, E. P.A.M., Gurevich, L.; id_orcid, FRANCESCHETTI, A, KOUWENHOVEN, LP, Zunger, A., GUREVICH, L, Hens, Zeger, Gurevich, L., VANMAEKELBERGH, D, Bakkers, E.P.A.M.; id_orcid, ZUNGER, A   +16 more
core   +1 more source

Scanning Tunnelling Spectroscopy of Periodic Nickel Nanoparticles [PDF]

, 2003
Scanning tunneling microscopy/spectroscopy as well as atomic force microscopy were applied to study the non-structural and nanoelectronic properties of periodic nickel nanoparticles deposited on n-silicon substrates.
Kamiński, M., Susła, B., Giersig, M., Kandulski, M.   +3 more
core   +1 more source