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Typical drain-source current-voltage characteristics of the studied Pd/InAlAs MEMT hydrogen sensor under different hydrogen gases at 303 K.
Maximum transconductance and threshold voltage as a function of hydrogen concentration.
Dynamic response curves of the studied Pd/InAlAs MHEMT hydrogen sensor upon exposing to different gases.
Logarithmic value of the ratio between and vs the square root of hydrogen partial pressure at 363 K.
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