相关实验视频

Updated: Jul 12, 2025

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures

Published on: October 9, 2012

温度依赖导电和光响应在少层ReS₂中

Kimberly Intonti^1,2, Enver Faella^1,2, Arun Kumar^1,2

¹Department of Physics "E.R. Caianiello", University of Salerno, Fisciano 84084, Salerno, Italy.

ACS applied materials & interfaces

|October 20, 2023

概括

本研究探讨了温度如何影响二硫化场效应晶体管 (FET). 由于光球度效应和吸附剂脱吸,光电流随着温度的增加而增加,影响设备的性能.

科学领域:

材料科学材料科学材料科学
凝聚物质物理学凝聚物质物理学
半导体设备物理半导体设备物理

背景情况:

二硫化物 (ReS2) 场效应晶体管 (FET) 以其电特性和光响应而闻名.
关于ReS2 FET中温度依赖光电流的研究有限.

研究的目的:

在广泛的温度范围内,用Cr-Au接触器对几层ReS2 FET进行电气特征.
调查光电流的温度依赖性及其 ReS2 FET 中的潜在机制.

主要方法:

在不同温度下对ReS2FET的电特性,包括传输和输出特性.
时间分辨率的光电流测量作为温度和入射光功率的函数.

主要成果:

估计了Cr-Au/ReS2接口上的有效的肖特基屏障.
关键设备参数,如值电压,载体度和移动性,表现出温度依赖的行为.
光电流随着温度的增加而增加,呈现出线性电源依赖性和更高温度的更长的升降/衰变时间.

结论:

ReS2 FET中的光电流受到温度的显著影响.
光球度效应和光诱导的吸附剂脱吸被确定为关键机制,有助于在高温和低压下观察到的光电流行为.

关键词:

斯科特基屏障是一个障碍.场效应晶体管电晶体管.光导电性的光导性压力压力压力压力压力二化是一种化.温度的温度的温度的温度的温度.

更多相关视频

High-resolution Thermal Micro-imaging Using Europium Chelate Luminescent Coatings

High-resolution Thermal Micro-imaging Using Europium Chelate Luminescent Coatings

Published on: April 16, 2017

Ohmic Contact Fabrication Using a Focused-ion Beam Technique and Electrical Characterization for Layer Semiconductor Nanostructures

Ohmic Contact Fabrication Using a Focused-ion Beam Technique and Electrical Characterization for Layer Semiconductor Nanostructures

Published on: December 5, 2015

相关概念视频

Photochemical Electrocyclic Reactions: Stereochemistry

Photochemical Electrocyclic Reactions: Stereochemistry

The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
Selection Rules: Photochemical Activation

Thermosensation

Thermosensation

Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...

Thermal and Photochemical Electrocyclic Reactions: Overview

Thermal and Photochemical Electrocyclic Reactions: Overview

Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.