Low power hydrogen sensors using electrodeposited PdNi–Si Schottky diodes

Usgaocar, Ashwin; Groot, C. H. de; Boulart, Cédric; Castillo, Alain; Chavagnac, Valérie

doi:10.1016/j.snb.2011.06.022

Cited by 12 publications

(10 citation statements)

References 17 publications

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“…Since they are connected back‐to‐back in a circuit, one of them is always polarized in forward and the second one in the reverse direction. Such contacts are used as photodetectors or gas detectors . Recently, a method was presented how to extract parameters of two diodes from single measurement and with usage current derivatives .…”

Section: Introductionmentioning

confidence: 99%

Back‐to‐back connected asymmetric Schottky diodes with series resistance as a single diode

Osvald

2015

Physica Status Solidi (a)

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We have studied current-voltage characteristics of two backto-back connected Schottky diodes. In many semiconductor devices, we need to prepare one Schottky contact and the second contact should be ohmic. We show that even in the case when the second contact is also of Schottky type but with different barrier height, current-voltage characteristic remains very similar as that of single Schottky diode. The existence of the second Schottky diode with lower-barrier height may not be detectable by inspecting I-V curves of such structure. The analysis and Schottky diode parameter extraction also may not be able to disclose existence of two Schottky contacts in the studied structure. The structure behaves as it would be one single Schottky contact. This knowledge may be used in technology where in many cases the ohmic contact may be substituted by another Schottky contact with lower-barrier height.

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Section: Introductionmentioning

confidence: 99%

Back‐to‐back connected asymmetric Schottky diodes with series resistance as a single diode

Osvald

2015

Physica Status Solidi (a)

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“…A number of hydrogen sensors have therefore been proposed that use the hydrogen absorption characteristic of Pd. These include resistive type sensors, 3,4 work functionbased sensors, [5][6][7] and capacitive MEMS sensors. 8 Resistive sensors utilize the fact that the electrical resistance of Pd changes with hydrogen absorption.…”

Section: Introductionmentioning

confidence: 99%

A review of capacitive MEMS hydrogen sensor using Pd‐based metallic glass with fast response and low power consumption

Yamazaki

Hayashi

Masunishi

et al. 2019

Elect Comm in Japan

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This paper reports on a capacitive MEMS hydrogen sensor using Pd‐based metallic glass (MG) for future hydrogen society. First, we investigate PdCuSi as a Pd‐based MG and show that this material is promising for capacitive MEMS hydrogen sensor. Second, we employ the Pd‐based MG in a hydrogen sensor that has an inverted T‐shaped electrode. The sensor is fabricated by a surface micromachining process. We show that the fabricated hydrogen sensor exhibits hysteresis‐free and fast response properties at room temperature.

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“…1 However, hydrogen is a flammable gas, and hydrogen leaks need to be detected promptly. These include resistive type sensors, 3,4 work functionbased sensors, [5][6][7] and capacitive MEMS sensors. In addition, low power consumption is important for continuous monitoring in battery driven devices.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Review of Capacitive MEMS Hydrogen Sensor using Pd based Metallic Glass with Fast Response and Low Power Consumption

et al. 2018

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This paper reports on a capacitive MEMS hydrogen sensor using Pd-based metallic glass (MG) for future hydrogen society. First, we investigate PdCuSi as a Pd-based MG and show that this material is promising for capacitive MEMS hydrogen sensor. Second, we employ the Pd-based MG in a hydrogen sensor that has an inverted Tshaped electrode. The sensor is fabricated by a surface micromachining process. We show that the fabricated hydrogen sensor exhibits hysteresis-free and fast response properties at room temperature. K E Y W O R D Scapacitive, hydrogen sensor, hydrogen society, MEMS, Pd-based metallic glass 2 SENSING FILMS Pd-based metallic glassPd has excellent hydrogen absorption characteristics but hydrogen is absorbed as a metal hydride, and as a result, the response to hydrogen is slow, and heat is required to release 70

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Low power hydrogen sensors using electrodeposited PdNi–Si Schottky diodes

Cited by 12 publications

References 17 publications

Back‐to‐back connected asymmetric Schottky diodes with series resistance as a single diode

Back‐to‐back connected asymmetric Schottky diodes with series resistance as a single diode

A review of capacitive MEMS hydrogen sensor using Pd‐based metallic glass with fast response and low power consumption

A Review of Capacitive MEMS Hydrogen Sensor using Pd based Metallic Glass with Fast Response and Low Power Consumption

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