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A device and method for synchronous electrical control and material transient absorption spectrum measurement

A technology of synchronous electrical regulation and transient absorption, which is used in measurement devices, material analysis by electromagnetic means, and material analysis, etc., can solve the problem of inability to realize the acquisition of transient absorption spectrum of micro-area materials

Active Publication Date: 2019-01-25
THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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  • Abstract
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Problems solved by technology

[0006] The purpose of the present invention is to propose a device for synchronous electrical regulation and material transient absorption spectrum measurement, which can solve the problem of inability to realize the acquisition of micro-area material transient absorption spectrum under synchronous in-situ application of electrical grid voltage adjustment in the prior art

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  • A device and method for synchronous electrical control and material transient absorption spectrum measurement
  • A device and method for synchronous electrical control and material transient absorption spectrum measurement
  • A device and method for synchronous electrical control and material transient absorption spectrum measurement

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Embodiment Construction

[0035] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0036] Such as Figure 1 to Figure 4 As shown, this embodiment provides a device for synchronous electrical control and material transient absorption spectrum measurement, especially a device for synchronous electrical control and material transient absorption spectrum measurement based on pump detection technology, which includes a pump Detection of micro-area signal collection optical path 1, spectroscopic sheet 2, objective lens 3, polymer spectroscopic sheet 4, sample stage 5 and imaging CCD 6, wherein a needle card 7 is arranged between the sample stage 5 and polymer spectroscopic sheet 4, the needle card 7 is used to apply a voltage to the sample on the sample stage 5.

[0037] In this embodiment, the voltage is applied to the sample through the pin card 7, which realizes the in-situ applicat...

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Abstract

The invention relates to the technical field of ultrafast dynamics, in particular to a synchronous electric regulation and control and material transient absorption spectrum measuring device. The synchronous electric regulation and control and material transient absorption spectrum measuring device comprises a pumping detection micro region signal collection optical path, a beam splitting sheet, an objective lens, a polymer beam splitting thin sheet, a sample table and an imaging CCD (charge coupled device), and is characterized in that a pin clamp is arranged between the sample table and the polymer beam splitting thin sheet and is used for applying voltage on a sample arranged on the sample table. Meanwhile, a synchronous electric regulation and control and material transient absorption spectrum measuring method is also provided. The voltage is applied onto the sample through the pin clamp; the in-situ electric grid voltage application for regulation and control is realized; the transient absorption spectrum measurement on the micro region samples under the electric regulation and control condition is synchronously realized; the carrier relaxation process information of a micro-nano device in the work state can be further detected.

Description

technical field [0001] The invention relates to the technical field of ultrafast dynamics, in particular to a device and method for synchronous electrical regulation and material transient absorption spectrum measurement. Background technique [0002] In recent years, two-dimensional materials such as graphene and molybdenum disulfide have attracted widespread attention due to their excellent electrical, optical, mechanical and other excellent properties and potential application prospects. Based on the different excellent properties of different materials, the combination of multi-material systems, that is, logic devices and photovoltaic devices based on their heterojunctions, has recently been a research hotspot in its potential application direction. [0003] The pump-probe technology based on femtosecond laser can explore the specific mechanism affecting its application by studying the dynamic process of interface carriers, and further provide a basis and reference for t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/00
CPCG01N27/00
Inventor 王婷王瑞王小伟裘晓辉
Owner THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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