Article
Chemistry, Multidisciplinary
Francesco Borsoi, Grzegorz P. Mazur, Nick van Loo, Leo Bourdet, Kongyi Li, Svetlana Korneychuk, Alexandra Fursina, Ji-Yin Wang, Vukan Levajac, Elvedin Memisevic, Ghada Badawy, Sasa Gazibegovic, Kevin van Hoogdalem, Erik P. A. M. Bakkers, Leo P. Kouwenhoven, Sebastian Heedt, Marina Quintero-Perez, Michal P. Nowak
Summary: This study introduces a novel fabrication concept based on shadow walls, enabling in situ, selective, and consecutive depositions of superconductors and normal metals to form defect-free semiconducting-superconducting interfaces. The method allows for the realization of devices in a single shot, eliminating fabrication steps after the synthesis of the fragile semiconductor/superconductor interface. The cleanliness of the technique enables systematic studies of topological superconductivity in nanowires and the synthesis of advanced nano-devices based on a wide range of material combinations and geometries while maintaining high interface quality.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
Amir Youssefi, Itay Shomroni, Yash J. Joshi, Nathan R. Bernier, Anton Lukashchuk, Philipp Uhrich, Liu Qiu, Tobias J. Kippenberg
Summary: This experiment demonstrates the cryogenic electro-optical readout of a superconducting electromechanical circuit using a commercial titanium-doped lithium niobate modulator, achieving coherent spectroscopy and incoherent thermometry. Further optimization of the modulator design could reduce the added noise of the setup to levels similar to current semiconductor microwave amplifiers.
NATURE ELECTRONICS
(2021)
Article
Chemistry, Physical
Wenjie Li, Xiang Zhang, Dukang Yan, Lebin Wang, Wenhai Sun, Zitong Li, Jianbo Deng, Jiupeng Zhao, Yao Li
Summary: Electrochromic devices (ECDs) have significant energy-saving effects in green buildings, but degradation induced by ion trapping limits their development. This study demonstrates that the degraded ECDs can be rejuvenated by heat treatment, extending their lifespan and promoting sustainable development.
Review
Nanoscience & Nanotechnology
Irfan Siddiqi
Summary: The review explores the major sources of decoherence in superconducting qubits and the trade-offs between simple and complex circuit designs. It also discusses the impact of materials optimization strategies on quantum computing.
NATURE REVIEWS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Tabassom Arjmand, Maxime Legallais, Thi Thu Thuy Nguyen, Pauline Serre, Monica Vallejo-Perez, Fanny Morisot, Bassem Salem, Celine Ternon
Summary: This paper summarizes the key aspects of fabricating functional devices using bottom-up silicon nanowires. It briefly reviews the different ways of utilizing nanowires in functional devices and discusses the main properties of nanowires and nanonets. The paper also presents the main techniques for nanowire growth and manipulation, as well as the different families of nanowire-based transistors and their integration routes and electrical performance. It emphasizes the importance of key technological elements for the integration of silicon nanowires and reviews the main application areas for these devices.
Article
Multidisciplinary Sciences
C. G. L. Bottcher, S. P. Harvey, S. Fallahi, G. C. Gardner, M. J. Manfra, U. Vool, S. D. Bartlett, A. Yacoby
Summary: This study demonstrates a controllable spin-photon coupling based on a longitudinal interaction, enabling remote entangling operations in a quantum computer. By driving a singlet-triplet qubit near the resonator frequency, a longitudinal coupling with a high-impedance superconducting resonator is achieved. The energy splitting of the qubit is measured as a function of the drive amplitude and frequency, showing pronounced effects near the resonator frequency due to longitudinal coupling.
NATURE COMMUNICATIONS
(2022)
Article
Quantum Science & Technology
V Leyton-Ortega, S. Majumder, R. C. Pooser
Summary: We propose a method to improve the convergence of variational algorithms for error mitigation by replacing certain Hermitian gates with their inverses. This approach effectively reduces energy fluctuations in the parameter learning path, resulting in a faster convergence. Our numerical simulations provide insights into the underlying loss landscape and help explain the experimental hardware outcomes, connecting gate performance with application-specific behavior.
QUANTUM SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Rocio Barrio, Nieves Gonzalez, Alvaro Portugal, Carmen Morant, Jose Javier Gandia
Summary: Researchers propose using thin films based on silicon as electrodes in commercial lithium-ion batteries, which have higher storage capacity. By doping and optimizing the growth conditions, the stability and longevity of the batteries can be improved.
Article
Energy & Fuels
Chaoqi Wang, Martin Foldyna, Erik Johnson, Pere Roca i Cabarrocas
Summary: The study demonstrates the potential of triple radial junction silicon nanowire solar cells, fabricated using hydrogenated amorphous silicon, for applications requiring high voltages and large surface areas, such as water splitting. High open-circuit voltage and short-circuit current density were achieved by optimizing the SiNW density on substrates, showcasing the efficiency of these solar cells.
Article
Chemistry, Multidisciplinary
Antonio Vettoliere, Carmine Granata
Summary: High-sensitivity ac current sensors based on a superconducting quantum interference device have been designed and characterized, with the consideration of both parallel and series double-washer schemes. By measuring key features and parameters, such as flux-to-voltage characteristic and magnetic field spectral noise, the advantages and drawbacks of both configurations have been examined.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Physical
Rama Chandra Muduli, Paresh Kale
Summary: This paper presents a study on surface modification of silicon nanostructures to enhance hydrogen storage capacity. By optimizing the structure and morphology, the surface area and gas-surface interaction of the silicon nanostructures were improved. The results showed that porous silicon exhibited the highest gas-surface interaction and surface energy, making it a suitable candidate for hydrogen storage.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Hadi Hijazi, Mohammed Zeghouane, Vladimir G. Dubrovskii
Summary: Silicon atoms can increase the nucleation probability of As-based alloy nanowires, but they suppress the nucleation rate of InGaN nanowires of different compositions.
Article
Multidisciplinary Sciences
A. Ibabe, M. Gomez, G. O. Steffensen, T. Kanne, J. Nygard, A. Levy Yeyati, E. J. H. Lee
Summary: In this study, we find that measurements of the superconductor-to-normal transition resulting from Joule heating can be used as a powerful spectroscopical tool to characterize hybrid superconductor-semiconductor devices. By applying this technique to junctions in Al-InAs nanowires, we obtain detailed information of each lead independently, including differences in superconducting coherence lengths, inhomogeneous covering of the epitaxial shell, and the inverse superconducting proximity effect, which can serve as a unique fingerprint for each device with applications in data interpretation, device optimization, and disorder analysis. Our work highlights the importance of heating in hybrid devices, an effect that is often overlooked.
NATURE COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Maik Simon, Ryo Mizuta, Ye Fan, Alexander Tahn, Darius Pohl, Jens Trommer, Stephan Hofmann, Thomas Mikolajick, Walter M. Weber
Summary: Introducing local volume extensions to silicon nanowires can effectively control the growth rate of metal silicides, decouple the growth process from variations in metal supply, suppress Ni-rich silicide phases, and promote the formation of single-crystalline Ni-Si phases. This method helps reduce silicidation in nanowires and improve device performance.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Francesca Peverini, Marco Bizzarri, Maurizio Boscardin, Lucio Calcagnile, Mirco Caprai, Anna Paola Caricato, Giuseppe Antonio Pablo Cirrone, Michele Crivellari, Giacomo Cuttone, Sylvain Dunand, Livio Fano, Benedetta Gianfelici, Omar Hammad, Maria Ionica, Keida Kanxheri, Matthew Large, Giuseppe Maruccio, Mauro Menichelli, Anna Grazia Monteduro, Francesco Moscatelli, Arianna Morozzi, Stefania Pallotta, Andrea Papi, Daniele Passeri, Marco Petasecca, Giada Petringa, Igor Pis, Gianluca Quarta, Silvia Rizzato, Alessandro Rossi, Giulia Rossi, Andrea Scorzoni, Cristian Soncini, Leonello Servoli, Silvia Tacchi, Cinzia Talamonti, Giovanni Verzellesi, Nicolas Wyrsch, Nicola Zema, Maddalena Pedio
Summary: This study investigates, for the first time, the damaging and recovering mechanisms of p-i-n detector devices based on hydrogenated amorphous silicon induced by a neutron source using high-resolution photoemission, soft X-ray absorption, and atomic force microscopy. Comparison of spectroscopic results on bare and irradiated samples reveals increased disorder and reduced Si-H bonds after irradiation, with partial recovery of the Si-H bonds observed after annealing.
