نتایج جستجو برای: phototransistor
تعداد نتایج: 205 فیلتر نتایج به سال:
Abstract Deep-ultraviolet (DUV) phototransistors have shown great potential applications in UV imaging, artificial intelligence, and wearable optoelectronics. Among a large number of wide bandgap semiconductors, the quasi-two-dimensional ? -Ga 2 O 3 is considered as an ideal candidate for DUV photodetector applications. Herein, we report high responsivity ( R ) fully flexible Ta-doped phototran...
The two-phase flow (water-air) occurring in square minichannel (3x3 mm) has been analysed. In the minichannel it has been observed: bubbly flow, flow of confined bubbles, flow of elongated bubbles, slug flow and semi-annular flow. The time series recorded by laser-phototransistor sensor was analysed using the recurrence quantification analysis. The two coefficients:Recurrence rate (RR) and Dete...
The aim of this research is to design and implement line-tracking mobile robot. The robot must follow a line drawn on the floor with different color, avoids hitting moving object like another moving robot or walking people and achieves color sensing. The control system reacts by controlling each of the motors to keep the tracking sensor over the middle of the line. Proximity sensors used to avo...
This paper presents a design of a LED dot matrix written display system using Single Chip Micyoco (SCM). It completes the data acquisition function through the light pen with excellent photographic performance phototransistor, then it can achieve the following functions, such as click light, draw light, reverse display, entire screen erasure, stroke erasure, multi characters written and so on. ...
Monolayer molybdenum disulfide (MoS2) has become a promising building block in optoelectronics for its high photosensitivity. However, sulfur vacancies and other defects significantly affect the electrical and optoelectronic properties of monolayer MoS2 devices. Here, highly crystalline molybdenum diselenide (MoSe2) monolayers have been successfully synthesized by the chemical vapor deposition ...
A hybrid sensor and display pixel and its operating scheme are proposed. The circuit consists of two main parts: 1) the light sensor and 2) the integrated display onto the backplane. Hybrid a-Si:H/Nanocrystalline silicon (nc-Si) TFTs were used as a hybrid phototransistor incorporating both sensing and switching on the same device. The display backplane design was implemented using a driving TFT...
The performance of graphene field-effect transistors is limited by the drastically reduced carrier mobility of graphene on silicon dioxide (SiO2) substrates. Here we demonstrate an ultrasensitive ultraviolet (UV) phototransistor featuring an organic self-assembled monolayer (SAM) sandwiched between an inorganic ZnO quantum dots decorated graphene channel and a conventional SiO2/Si substrate. Re...
Simple, accurate solid-state diode photometer for use in measuring oxygen saturation of whole blood.
A small, easily-built photometer is described, in which a solid-state light-emitting diode is used as the light source and a phototransistor as the detector. The detector response is kept constant by modulating the diode intensity in proportion to the absorption characteristics of the sample being analyzed. Linearity and stability are good, even with turbid solutions (drift is <0.00 1 absorbanc...
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