Abstract

The effect of uniaxial pressure on the electroluminescence (EL) spectrum and current-voltage (I–V) characteristics of a 6H-SiC p-n structure was studied. Under the effect of pressure, a fast quenching of the excitonic EL is observed and a slower quenching of the impurity EL bands. Uniaxial pressure also distorts the shape of the forward I–V characteristic and shifts it to lower voltages. A conclusion is made that the application of pressure leads to the transformation of thermal injection currents into tunneling currents.

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