Photo-induced currents in the sandwich metal-ferroelectric-metal structure

7th International Conference Radiation-thermal Effects and Processes in Inorganic Materials

材料科学;物理学

Ivanov, V.^1 ; Karpets, Yu.^1 ; Perkov, Yu.^1

FESTU, Khabarovsk, Russia^1

关键词: Contact potential difference;    Lithium niobate crystal;    Metal-ferroelectric metals;    Photoinduced currents;    Thermal model;    Two electrodes;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/168/1/012034/pdf
DOI  :  10.1088/1757-899X/168/1/012034

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

It was described the photoelectric effect in thin sandwich metal-ferroelectric-metal system. The effect was observed in doped lithium niobate crystals with two electrodes of different metals. The effect is observed only in doped lithium niobate crystals and has a maximum for concentrations of impurities of iron around 0.3 % weight. This paper proposed thermal model of the investigated phenomena resulting from field contact potential difference on the borders of section of metal-ferroelectric material. The results obtained can be used to develop radiation receivers, as well as in the interpretation of experimental results on studying the properties of sandwiched metal-ferroelectric-metal structure.