Отрицательная дифференциальная проводимость структур на основе оксида лантана | Zendy

А. Игитян | Zendy; Н. Агамалян | Zendy; Р. Овсепян | Zendy; С. Петросян | Zendy; Г. Бадалян | Zendy; И. А. Гамбарян | Zendy; А. Папикян | Zendy; Е. Кафадарян | Zendy

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Отрицательная дифференциальная проводимость структур на основе оксида лантана

Author(s) -

А. Игитян,

Н. Агамалян,

Р. Овсепян,

С. Петросян,

Г. Бадалян,

И. А. Гамбарян,

А. Папикян,

Е. Кафадарян

Publication year - 2020

Publication title -

физика и техника полупроводников

Language(s) - English

Resource type - Journals

eISSN - 1726-7315

pISSN - 0015-3222

DOI - 10.21883/ftp.2020.02.48915.9280

Subject(s) - conductivity , materials science , evaporation , electrode , surface conductivity , analytical chemistry (journal) , substrate (aquarium) , lanthanum oxide , oxide , silicon , lanthanum , proton , silicon oxide , hydrogen , chemistry , inorganic chemistry , optoelectronics , metallurgy , physics , oceanography , silicon nitride , chromatography , quantum mechanics , organic chemistry , thermodynamics , geology

Using e-beam evaporation technique, transparent surface-hydrated lanthanum oxide (OH-La2O3) films with a thickness of 40, 140, and 545 nm were obtained. The electrical and optical characteristics of Al/OH-La2O3/p-Si structures were studied, where aluminum and a silicon substrate with p-type conductivity were used as the upper and lower electrodes, respectively.Negative differential conductivity region in the conductivity–voltage characteristics for the forward bias voltage was found; a possible mechanism of negative differential conductivity is explained by proton transport in hydrogen bonded chains of water molecules at the OH-La2O3 film surface.

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