Palladium/cadmium‐sulfide Schottky diodes for hydrogen detection

1976 ◽  
Vol 28 (11) ◽  
pp. 687-688 ◽  
Author(s):  
Martin C. Steele ◽  
Bernard A. MacIver
Keyword(s):  
Cadmium Sulfide ◽  
Schottky Diodes ◽  
Hydrogen Detection

Improved hydrogen detection sensitivity in N-polar GaN Schottky diodes

2009 ◽  
Vol 94 (21) ◽  
pp. 212108 ◽  
Author(s):  
Yu-Lin Wang ◽  
F. Ren ◽  
U. Zhang ◽  
Q. Sun ◽  
C. D. Yerino ◽  
...  
Keyword(s):  
Schottky Diodes ◽  
Detection Sensitivity ◽  
Hydrogen Detection

Erratum: “Improved hydrogen detection sensitivity in N-polar GaN Schottky diodes” [Appl. Phys. Lett. 94, 212108 (2009)]

2009 ◽  
Vol 95 (1) ◽  
pp. 019903 ◽  
Author(s):  
Yu-Lin Wang ◽  
F. Ren ◽  
Yu Zhang ◽  
Q. Sun ◽  
C. D. Yerino ◽  
...  
Keyword(s):  
Schottky Diodes ◽  
Detection Sensitivity ◽  
Hydrogen Detection

Hydrogen Detection with Noble Metal-TiO2 Schottky Diodes

2011 ◽  
Vol 495 ◽  
pp. 289-293 ◽  
Author(s):  
Saeedeh Rahbarpour ◽  
Faramarz Hossein-Babaei
Keyword(s):  
Work Function ◽  
Barrier Height ◽  
Noble Metal ◽  
Schottky Diodes ◽  
Gold Surface ◽  
Silver Surface ◽  
Current Increase ◽  
Hydrogen Detection ◽  
Fast Detection ◽  
Metal Interactions

Fast detection of hydrogen at a wide concentration range is desired for many applications. We report detecting hydrogen using Au-TiO2-Ti and Ag-TiO2-Ti diodes. While hydrogen-Au and hydrogen-Ag interactions are very different, at a constant biasing voltage, the measured current in both diodes is highly sensitive to the partial pressure of hydrogen contamination in the surrounding atmosphere. Work function variations were investigated by connecting the I-V specifications to the energy barrier height established at the Au-TiO2 and Ag-TiO2 junctions. Electronic features of the devices were described based on the assumption of two different hydrogen-noble metal interactions: Hydrogen reduces Ag work function by reducing the adsorbed oxygen species from the silver surface, while Au work function is reduced by the same mechanism as well as the direct adsorption of hydrogen species to the gold surface. Both of these mechanisms result in hydrogen detection by Schottky barrier height reduction and current increase.

Characteristics of gold/cadmium sulfide nanowire Schottky diodes

2010 ◽  
Vol 518 (7) ◽  
pp. 1809-1814 ◽  
Author(s):  
Sai Guduru ◽  
Vijay P. Singh ◽  
Suresh Rajaputra ◽  
Shounak Mishra ◽  
Raghu Mangu ◽  
...  
Keyword(s):  
Cadmium Sulfide ◽  
Schottky Diodes
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