Thermally-stimulated current tester

A thermal stimulation current and tester technology, applied in the direction of measuring current/voltage, instruments, measuring devices, etc., can solve the problems that self-assembled equipment cannot meet the needs of new material research, achieve high sensitivity, broad application prospects, and test results accurate effect

Active Publication Date: 2012-09-19
HANGZHOU DIANZI UNIV
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Problems solved by technology

Thermally stimulated current technology is an important tool for the study of charging charac

Method used

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[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0019] refer to figure 1 , figure 2 , a thermal stimulation current tester, the tester includes a vacuum chamber 1, a microcurrent meter 2 and a temperature control device 3, the vacuum chamber 1 includes an upper electrode 4 that can be adjusted up and down, a lower electrode 6 with a sample cell 5, The liquid nitrogen container 7 and the heater 8, the sample cell 5 is arranged above the lower electrode 6, the liquid nitrogen container 7 is arranged on the periphery of the lower electrode 6, and the top of the liquid nitrogen container 7 is provided with a liquid injection port 12. The heater 8 is arranged in the inner center of the lower electrode 6 , the lower electrode 6 is mounted on the ceramic base 9 , the ceramic base 9 is fixed on the base 11 , and the ceramic ba...

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Abstract

The invention relates to a thermally-stimulated current tester, which comprises a vacuum chamber, a micro galvanometer and a temperature control device, wherein the vacuum chamber comprises an upper electrode capable of being adjusted up and down, a lower electrode with a sample reservoir, a liquid nitrogen container and a heater; the sample reservoir is arranged above the lower electrode; the liquid nitrogen container is arranged at the periphery of the lower electrode; the heater is arranged in the center inside the lower electrode; the lower electrode is arranged on an insulated seat; the upper electrode and the lower electrode are connected to the micro galvanometer; a temperature sensor is arranged at the sample reservoir; and the heater and the temperature sensor are respectively connected to the temperature control device. The thermally-stimulated current tester is high in sensitivity and accurate in test result, effectively solves the problem that a self-assembled device cannot meet search and test requirements and the like of new materials, perfects experimental methods and measures of a thermally-stimulated current technology and has wide application prospects in the fields of researches on dielectric materials, insulation materials, semiconductor photoelectric materials and electret materials and measurement of micro-current.

Description

technical field [0001] The invention belongs to the research field of opto-mechanical integration, and in particular relates to a thermal stimulation current tester. Background technique [0002] Thermally Stimulated Current (TSD) technology is to linearly heat the sample to de-trappe the space charges in different trap levels in the material, or to relax the oriented dipole molecules to generate a current on an external circuit to obtain a current. A technique for the relationship with temperature. Through the analysis and calculation of the obtained current-temperature spectrum, the bound energy levels of trapped space charges and oriented dipole molecules, activation energy distribution and stored charge density, escape frequency and average transit time of trapped charges can be obtained, etc. The parameter is an important tool to study the migration and decay law of space charge inside the material after being stimulated out of the trap, the relaxation change law of di...

Claims

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Application Information

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IPC IPC(8): G01R19/00
Inventor 陈钢进
Owner HANGZHOU DIANZI UNIV
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