Results 81 to 90 of about 12,931 (263)
Micromachines, 2020 In recent years, the characteristics of the graphene/crystalline silicon junction have been frequently discussed in the literature, but study of the graphene/polycrystalline silicon junction and its potential applications is hardly found.
Yu-Yang Tsai +4 more
doaj +1 more source
Monolithic arrays of surface emitting laser NOR logic devices [PDF]
, 1993 Monolithic, cascadable, laser-logic-device arrays have been realized and characterized. The monolithic surface-emitting laser logic (SELL) device consists of an AlGaAs superlattice lasing around 780 nm connected to a heterojunction phototransistor (HPT ...
Lee, Y. H. +5 more
core +1 more source
Oxide Semiconductor Thin‐Film Transistors for Low‐Power Electronics
Advanced Science, EarlyView.This review explores the progress of oxide semiconductor thin‐film transistors in low‐power electronics. It illustrates the inherent material advantages of oxide semiconductor, which enable it to meet the low‐power requirements. It also discusses current strategies for reducing power consumption, including interface and structure engineering.
Shuhui Ren +8 more
wiley +1 more source
Zero gravity tissue-culture laboratory [PDF]
, 1972 Hardware was developed for performing experiments to detect the effects that zero gravity may have on living human cells. The hardware is composed of a timelapse camera that photographs the activity of cell specimens and an experiment module in which a ...
Cook, J. E. +2 more
core +1 more source
Advanced Science, EarlyView.This work demonstrates a heterojunction‐gated infrared phototransistor for broadband detection from 350 to 1700 nm. By suppressing defect states on nonpolar (100) facets of large PbS quantum dots via hybrid ligand passivation, the device achieves a room‐temperature detectivity of 5.7 × 1013 Jones at 1650 nm.
Hongkun Duan +14 more
wiley +1 more source
Photo-devices for optical controlling of microwave circuits
Journal of Telecommunications and Information Technology, 2001 The most important optical devices which can be used for controlling microwave circuits will be presented in the paper. The performance and the parameters of the devices such as semiconductor microwave optoelectronic switches, photodiodes and ...
Zenon R. Szczepaniak, Bogdan A. Galwas
doaj +1 more source
High-gain AlGaAs/GaAs double heterojunction Darlington phototransistors for optical neural networks [PDF]
, 1991 High-gain MOCVD-grown (metal-organic chemical vapor deposition) AlGaAs/GaAs/AlGaAs n-p-n double heterojunction bipolar transistors (DHBTs) and Darlington phototransistor pairs are provided for use in optical neural networks and other optoelectronic ...
Kim, Jae H., Lin, Steven H.
core +1 more source
Advanced Science, EarlyView.The noncentrosymmetric trilayer rhombohedral‐stacked MoS2 nanoflakes with enhanced sliding ferroelectric properties are synthesized via a molecular sieve‐assisted chemical vapor deposition process. The switchable polarization states, combined with the exceptional light/gate voltage modulated electrical properties of these nanoflakes, enable broadband ...
Qichao Xue +11 more
wiley +1 more source
Sensor system for acquisition of vegetation indexes [PDF]
Revista Brasileira de Engenharia Agrícola e AmbientalVegetation indexes are important indicators of the health and yield of agricultural crops. Among the sensors used to evaluate vegetation indexes, proximal sensors can be used for real-time decision-making. Thus, the objective of this study was to develop
Thales M. de A. Silva +4 more
doaj +2 more sources
Single radial magnetic bearing: A concept [PDF]
, 1975 Proposed bearing has increased stability. Magnetic structure keeps inner and outer bearing halves aligned.
Studer, P. A.
core +1 more source