Results 81 to 90 of about 161,989 (332)

Gate‐Tunable Hole Transport in In‐Plane Ge Nanowires by V‐Groove Confined Selective Epitaxy

Advanced Functional Materials, EarlyView.
Ge nanowires are promising for hole spin‐based quantum processors, requiring direct integration onto Si wafers. This work introduces V‐groove‐confined selective epitaxy for in‐plane nanowire growth on Si. Structural and low‐temperature transport measurements confirm their high crystalline quality, gate‐tunable hole densities, and mobility.
Santhanu Panikar Ramanandan, Alban Morelle, Michele Masseroni, Shelly Ben‐David, Sara Martí‐Sánchez, Victor Boureau, Alok Rudra, Thomas Ihn, Jordi Arbiol, W. Craig Carter, Klaus Ensslin, Anna Fontcuberta i Morral   +11 more
wiley   +1 more source

Characterization of the in-situ degradation process of P3HT:PCBM based on hyperspectral and neural networks

Polymer Testing
In situ online observation of surface morphology during degradation processes is of paramount importance for exploring the stability of organic photovoltaic materials.
Yang Wang, Zhao Ding, Junli Li, Ting Yang, Jianfeng Chen, Lifeng Bian, Chen Yang   +6 more
doaj  

Light‐Mediated Photomultiplication via Cascade Energy Transfer in Organic Photodiode

Advanced Functional Materials, EarlyView.
Light‐mediated photomultiplication via cascade energy transfer in organic photodiode demonstrates external quantum efficiency exceeding 200% and specific detectivity surpassing 5.0 × 1013 Jones. This advancement effectively addresses the limitation of elevated dark current density characteristic of prior photomultiplication organic photodetectors ...
Gae Hwang Lee, Jae‐Hyun Kim, Hyunbum Kang, Jaebin Jeong, Jong Won Chung, Dongwook Kim, Jaehoon Park, Youngjun Yun, Sungjun Park   +8 more
wiley   +1 more source

A new class of ferromagnetic semiconductors with high Curie temperatures [PDF]

arXiv, 2017
Ferromagnetic semiconductors (FMSs), which have the properties and functionalities of both semiconductors and ferromagnets, provide fascinating opportunities for basic research in condensed matter physics and device applications. Over the past two decades, however, intensive studies on various FMS materials, inspired by the influential mean-field Zener
arxiv  

Carbon Nanotube 3D Integrated Circuits: From Design to Applications

Advanced Functional Materials, EarlyView.
As Moore's law approaches its physical limits, carbon nanotube (CNT) 3D integrated circuits (ICs) emerge as a promising alternative due to the miniaturization, high mobility, and low power consumption. CNT 3D ICs in optoelectronics, memory, and monolithic ICs are reviewed while addressing challenges in fabrication, design, and integration.
Han‐Yang Liu, Yun Sun, Dong‐Ming Sun, Hui‐Ming Cheng   +3 more
wiley   +1 more source

Reliability Study of Fiber Coupling Efficiency of 980 nm Semiconductor Laser

Photonics
In order to improve the stability of semiconductor laser fiber coupling efficiency, based on the coupling principle, the optimal parameters for semiconductor laser fiber coupling were simulated to be θ = 45°, r = 3.25 μm, and z = 5.65 μm.
Gang Liu, Shuhao Pang, Xin Zhang, Mingzhi Tang, Lei Liang, Rui Li, Rui Huang   +6 more
doaj   +1 more source

CRIOTHERMOAPPLICATIONAL THERAPY IN NEUROLOGY WITH THE USE OF THERMOELECTRIC ENERGY CONVERTERS

Вестник Дагестанского государственного технического университета: Технические науки, 2016
Aim. The etiology of neurological diseases caused by stress situations and other signs of technological progress is analyzed.Methods. The methods of physical therapy effects on the human body used in therapeutic neurology, which are of high priority ...
T. A. Ismailov, M. A. Hazamova, T. A. Ragimova   +2 more
doaj   +1 more source

Characterization and Modeling of Semiconductor Power Devices Reliability

, 2017
This thesis aims at studying, characterizing and modeling the trapping and de-trapping mechanisms occurring during the ON-state operation mode and leading to the degradation of semiconductor power devices. In this operating condition, the combined effect of moderate electric fields, high currents and temperatures due to self-heating effects can ...
openaire   +2 more sources

Materials and Reliability Handbook for Semiconductor Optical and Electron Devices [PDF]

, 2013
Preface Part 1: Materials Issues and Reliability of Optical Devices 1. Reliability Testing of Semiconductor Optical Devices 2. Failure Analysis of Semiconductor Optical Devices 3. Failure Analysis using Optical Evaluation Technique (OBIC) of LDs and APDs for Fiber Optical Communication 4. Reliability and Degradation of III-V Optical Devices Focusing on
Stephen J. Pearton, Osamu Ueda
openaire   +2 more sources

Tailoring Hole‐Blocking Layers Enables a Versatile Approach for Fast Photomultiplication‐Type Organic Photodetectors

Advanced Functional Materials, EarlyView.
This study investigates the role of hole‐blocking layers (HBLs), particularly the combination of two HBLs in photomultiplication‐type organic photodetectors (PM‐OPDs), which results in high gain and record‐fast response. The proposed HBL strategy also allows for the use of photoactive layer with balanced donor–acceptor stoichiometry, which can be ...
Awais Sarwar, Yazhong Wang, Louis Conrad Winkler, Tianyi Zhang, Jonas Schröder, Donato Spoltore, Karl Leo, Johannes Benduhn   +7 more
wiley   +1 more source