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Оптоэлектронный сенсор водорода на основе структуры Pd-Oxide-InP

дипломная работа

Оптоэлектронный сенсор водорода на основе структуры Pd-Oxide-InP

Abstract

Созданы диоды Шоттки на основе Pd-Oxide-InP структуры с толщиной оксида от 0 до 1000Å и исследованы их электрические и фотоэлектрические свойства и чувствительность к водороду в интервале температур 90-300K. Созданные диоды Шоттки на основе Pd-Oxide-InP структуры и светодиод, излучающий на длине волны 0.9 μm, работают как оптопара для сенсора водорода. Время реакции структуры на импульсную подачу водорода составило 1-2 с, а постоянная времени спада фототока 10 с (в режиме тока короткого замыкания). Полученные структуры способны работать при комнатной температуре и низком энергопотреблении и перспективны для использования в сенсорах водорода.

In this work, we have demonstrated the application of the Pd-Oxide-InP Schottky diodes for manufacturing of the compact hydrogen sensors. Electrical and photoelectrical properties of the Pd-Oxide-InP Schottky diodes was investigated. The studies were conducted both with hydrogen and without hydrogen. Current-voltage characteristics (I-V) were investigated in the temperature range 90-300 K. The termo-tunnel mechanism of the current flow was determined from the analysis of the (I-V) characteristics variation with temperature as well as the Schottky barrier height. The Schottky diode and LED with the wavelength of 0.9 μm was used as an optocouple in the hydrogen sensor. Response time of the Schottky diode to the hydrogen switch-on was 1-2 sec with the recovery time constant equal to 10 sec (at short-circuit current regime).

Keywords

диоды Шоттки, hydrogen, hydrogen sensors, Schottky diodes, сенсоры водорода, водород

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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Average
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